{ "id": "lst300-line-round", "family": "garden", "title": "LST300 line & automatic-feed round", "summary": "Check the documented line specification, seat the original spool and diagnose remaining feed trouble.", "goal": "A consumable-fit and spool/feed record for the exact tool type.", "taskIds": [ "lst300-line-spec", "lst300-spool-replace", "lst300-feed-failure" ], "stages": [ "Match round nylon line and the original AF-100 single-line head.", "Fit the spool in the order shown by the matching tool-type manual.", "If feed is still wrong, use the automatic-feed route; do not bump the head." ], "supplies": [ "Correct AF-100 spool or exactly specified line", "The matching model/type manual", "Good light" ], "season": "Before the cutting season: check supplies. Repeat when line or feed behavior requires it.", "calendarLabel": "Review line supply before use", "scheduleNote": "Consumption depends on actual cutting. This reminder is not a replacement interval.", "version": "2.0.0", "kind": "maintenance-pack", "scheduleBasis": "User-selected reminder; task-specific manufacturer triggers remain authoritative", "physicalRepairVerified": false, "modelApplicability": [ "lst300-us" ], "fitChecks": [ { "id": "type", "label": "Model and tool type", "accepted": "matched", "options": [ { "value": "", "label": "Choose the version you can confirm" }, { "value": "matched", "label": "LST300 and the exact type on my label match my manufacturer manual and figures" }, { "value": "different", "label": "My type or manual figures differ" }, { "value": "unchecked", "label": "I have not checked the type number" }, { "value": "unknown", "label": "I am not sure" } ], "help": "Remove the battery before finding the label. Use the manufacturer model-and-type lookup; this site does not infer a type number from LST300 alone." }, { "id": "head", "label": "Cutting head", "accepted": "af100", "options": [ { "value": "", "label": "Choose the version you can confirm" }, { "value": "af100", "label": "Original AF-100 automatic-feed single-line head" }, { "value": "bump", "label": "Bump-feed head" }, { "value": "dual", "label": "Dual-line or modified head" }, { "value": "metal", "label": "Metal line or blade" }, { "value": "unknown", "label": "I am not sure" } ], "help": "Do not substitute a bump-feed procedure, dual-line spool or metal cutting attachment." } ], "tasks": [ { "id": "lst300-line-spec", "version": "2.0.0", "title": "Check the replacement line specification", "deviceFamily": "garden", "intent": "Maintenance", "summary": "Record the spool, line and cap markings before opening the head or selecting a compatible replacement.", "modelApplicability": [ "lst300-us" ], "modelDetails": [ { "id": "lst300-us", "family": "garden", "brand": "BLACK+DECKER", "series": "LST300", "label": "BLACK+DECKER LST300 · US · AF-100", "region": "US", "componentVersion": "Automatic-feed head with AF-100 spool; match model and tool type to manual", "manual": "lst300-manual", "help": "Remove the battery. Find LST300 and the adjacent type number on the tool label. Compare the guard, cap, spool and assembly figures with the linked LST300 manual. Use ServiceNet for your exact type if they differ. LST300 is not a bump-feed head.", "exclusions": [ "LST420 / LSTE525", "GH corded models", "Dual-line heads", "Metal line or blades", "Nonmatching tool type or modified head" ], "recognitionSource": "bd-manual-help" } ], "exclusions": [ "LST420 / LSTE525", "GH corded models", "Dual-line heads", "Metal line or blades", "Nonmatching tool type or modified head", "Unknown tool type or missing exact-type manual", "Bump-feed conversion" ], "prerequisites": [ "Release the trigger, let the head stop, engage the lock-off and remove the battery. Leave it removed throughout hands-on care. Keep fingers away from the sharp cutter on the guard.", "Read LST300 and the tool type from the label. Open the official model/type lookup and compare its manual and parts figures with your actual guard, single-line head and AF-100 spool. A readable model name alone does not establish the type. If the exact type manual cannot be obtained, or any figure differs, save a preparation record and stop." ], "tools": [ "Good lighting" ], "materials": [ "No replacement material needed for an intact tool" ], "checks": [ { "id": "safety", "prompt": "Is the battery removed, the trigger released and the cutting head stopped, with no battery damage, exposed wiring or faulty switch?", "sourceId": "lst300-manual", "sourceLocator": "English pp2–3 Safety; p8 Installing and removing the battery pack", "options": [ { "id": "yes", "label": "Yes", "next": "compatibility", "advice": "Keep the battery removed for every hands-on step." }, { "id": "no", "label": "No", "next": "service", "advice": "Stop using the tool for electrical, battery or switch damage. If you have only omitted battery removal, make the tool safe before restarting." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] }, { "id": "compatibility", "prompt": "Have you matched the label LST300 AND its exact tool type to the official lookup manual and its figures, with the original AF-100 automatic single-line head?", "sourceId": "bd-manual-help", "sourceLocator": "Official model/type lookup instructions; type is beside or below the model number", "options": [ { "id": "yes", "label": "Yes", "next": "check-1", "advice": "Record the label type and matching manual reference in the first step." }, { "id": "no", "label": "No", "next": "prepared", "advice": "An unknown type, unavailable type manual, different figures, bump-feed head or dual-line conversion blocks this procedure. Use manufacturer support to identify the correct instructions." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] }, { "id": "check-1", "prompt": "Can you read the actual spool or line package and identify its diameter, shape and material?", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "options": [ { "id": "yes", "label": "Yes", "next": "check-2", "advice": "Read every specification; color alone does not establish compatibility." }, { "id": "no", "label": "No", "next": "prepared", "advice": "Obtain a readable label or manufacturer part listing before fitting it." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] }, { "id": "check-2", "prompt": "Does it specify AF-100 or 0.065 inch (1.65 mm) round nylon monofilament for the matching original head?", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "options": [ { "id": "yes", "label": "Yes", "next": "steps", "advice": "Record the part details and choose a fitting method." }, { "id": "no", "label": "No", "next": "prepared", "advice": "Set aside serrated, heavier, metal or otherwise unverified line and obtain the correct specification." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] } ], "branches": [ { "checkId": "safety", "optionId": "yes", "next": "compatibility" }, { "checkId": "safety", "optionId": "no", "next": "service" }, { "checkId": "safety", "optionId": "unsure", "next": "prepared" }, { "checkId": "compatibility", "optionId": "yes", "next": "check-1" }, { "checkId": "compatibility", "optionId": "no", "next": "prepared" }, { "checkId": "compatibility", "optionId": "unsure", "next": "prepared" }, { "checkId": "check-1", "optionId": "yes", "next": "check-2" }, { "checkId": "check-1", "optionId": "no", "next": "prepared" }, { "checkId": "check-1", "optionId": "unsure", "next": "prepared" }, { "checkId": "check-2", "optionId": "yes", "next": "steps" }, { "checkId": "check-2", "optionId": "no", "next": "prepared" }, { "checkId": "check-2", "optionId": "unsure", "next": "prepared" } ], "steps": [ { "title": "Record the exact tool and make it safe", "text": "Release the trigger, let the head stop, engage the lock-off and remove the battery. Leave it removed throughout hands-on care. Keep fingers away from the sharp cutter on the guard. Read LST300 and the tool type from the label. Open the official model/type lookup and compare its manual and parts figures with your actual guard, single-line head and AF-100 spool. A readable model name alone does not establish the type. If the exact type manual cannot be obtained, or any figure differs, save a preparation record and stop.", "observation": "The battery is physically separate from the tool; your label type and matching manual reference are written below.", "sourceId": "bd-manual-help", "sourceLocator": "Official model/type lookup instructions; type is beside or below the model number", "requiredFields": [ "tool-type", "matched-manual" ], "id": "step-1" }, { "title": "Read the replacement label", "text": "Read the actual package, not just a listing photo. For a factory-wound spool, check BLACK+DECKER AF-100. For loose line, check 0.065 inch (1.65 mm), round cross-section and nylon monofilament.", "observation": "All required markings are readable and refer to the part you have.", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "id": "step-2" }, { "title": "Exclude incompatible cutting material", "text": "Set aside heavier or serrated line, metal cutting material and a spool intended for a dual-line or bump-feed head. Do not substitute a different line because it fits through the eyelet.", "observation": "The selected line matches diameter, shape and material together.", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "id": "step-3" }, { "title": "Check the cap separately", "text": "If a cap is required, the manual lists RC-100. Match it to the exact tool-type listing and original housing, including both tabs. A correct cap does not make a damaged housing usable.", "observation": "The cap marking and retention design match; no damaged tabs are being reused.", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "id": "step-4" }, { "title": "Choose factory-wound or hand-wound line", "text": "The manufacturer recommends factory-wound spools for best results and notes that hand-wound line can tangle more often. Choose the spool-replacement task for AF-100, or the model-specific rewind task for an intact original spool and compatible bulk line.", "observation": "Your choice leads to the appropriate installation sequence rather than mixing their anchor steps.", "sourceId": "lst300-manual", "sourceLocator": "English p10 Rewinding spool from bulk line; figs P–R", "id": "step-5" }, { "title": "Save the compatibility decision", "text": "Record the markings and whether the part passed. Keep any incompatible part separate and leave the head closed until the correct material is ready. This task confirms supplies; fitting and a normal-use check are separate tasks.", "observation": "The record identifies the actual consumable and the next fitting task.", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "id": "step-6" } ], "outcomeChecks": [ { "id": "outcome-1", "text": "Spool or loose line is positively identified as the specified round nylon consumable.", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" }, { "id": "outcome-2", "text": "Any required cap matches RC-100 and the exact tool-type parts listing.", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" } ], "stopConditions": [ "Keep the battery removed if the exact type/manual match is unknown or parts differ from the figures.", "Stop for a damaged battery, exposed wiring, a faulty switch, cracked guard, broken spool/hub, damaged cap tabs or housing slots. Use an authorized service center. Never open the battery, motor housing or charger." ], "sources": [ { "id": "lst300-manual", "title": "BLACK+DECKER LST300 instruction manual (manufacturer document, retailer-hosted)", "url": "https://pdf.lowes.com/productdocuments/1935f26b-7448-4c95-b467-a223bb73d80f/63056925.pdf", "checkedAt": "2026-10-13", "use": "Safety, assembly, replacement spool/line, maintenance and troubleshooting. Match the tool type and figures before use.", "license": "Manufacturer copyright, hosted by Lowe’s. Facts paraphrased; no diagrams or manual redistributed.", "region": "US", "locator": "English p9 Cutting line / Line feeding; Replacement accessories" }, { "id": "bd-manual-help", "title": "BLACK+DECKER: locate a manual using model and type number", "url": "https://support.blackanddecker.com/hc/en-us/articles/360012700118-How-can-I-get-a-parts-list-or-manual-for-my-tool", "checkedAt": "2026-10-13", "use": "Model/type number identification and authoritative ServiceNet lookup", "license": "Linked only.", "region": "US", "locator": "Official model/type lookup instructions; type is beside or below the model number" }, { "id": "lst300-product", "title": "BLACK+DECKER LST300 product and support", "url": "https://www.blackanddecker.com/products/lst300", "checkedAt": "2026-10-13", "use": "Model identity, automatic feed, AF-100 included spool", "license": "Linked only; no product photos reused.", "region": "US", "locator": "LST300 model identity; Automatic Feed Spool; Includes AF-100" } ], "assets": [ { "path": "/assets/garden/line-spec.svg", "title": "Check AF-100, round line and RC-100 markings separately", "kind": "Original sequence schematic; compare the exact tool-type manual for shape and location", "sourceId": "lst300-manual" } ], "relatedIds": [ "lst300-spool-replace", "lst300-spool-rewind", "lst300-cap-latch" ], "specs": [ { "name": "Round nylon line diameter", "value": 0.065, "unit": "inches", "condition": "Equivalent specification in the manual: 1.65 mm; round monofilament only", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" } ], "updatedAt": "2026-10-13", "estimatedDuration": null, "group": "lst300-spool", "recordFields": [ { "id": "tool-type", "label": "Tool type exactly as printed on the label", "type": "text", "required": true, "dependsOnStep": "step-1" }, { "id": "matched-manual", "label": "Exact-type manual reference or link that you matched", "type": "text", "required": true, "dependsOnStep": "step-1" }, { "id": "line-markings", "label": "Diameter, shape, material and spool marking checked", "type": "text", "required": true, "dependsOnStep": "step-2" }, { "id": "fitting-route", "label": "Chosen fitting route", "type": "select", "options": [ { "value": "factory", "label": "Factory-wound AF-100 replacement" }, { "value": "bulk", "label": "Rewind the original spool with compatible bulk line" }, { "value": "unverified", "label": "Part still unverified; leave the tool unused", "resultGate": "prepared" } ], "required": true, "dependsOnStep": "step-5" }, { "id": "final-result", "label": "Result of this task", "type": "select", "options": [ { "value": "ready", "label": "Checks passed; ready for the stated next step" }, { "value": "follow-up", "label": "More preparation or a linked task is needed", "resultGate": "prepared" }, { "value": "service", "label": "Leave unused and contact service", "resultGate": "service" } ], "required": true, "dependsOnStep": "step-6" } ], "consumables": [ { "name": "Factory-wound replacement spool", "specification": "BLACK+DECKER AF-100; 0.065 inch (1.65 mm) round nylon monofilament", "fit": "Original LST300 automatic single-line head, after exact tool-type/manual match", "exclude": "Bump-feed or dual-line heads; metal, serrated or heavier line; unverified replacement heads", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" }, { "name": "Bulk cutting line", "specification": "0.065 inch (1.65 mm) round nylon monofilament", "fit": "Intact original AF-100 spool with the slot, adjacent anchor hole, arrow and fill recesses in figs P–R", "exclude": "Serrated, square, heavier or metal line; different anchor geometry", "sourceId": "lst300-manual", "sourceLocator": "English p10 Rewinding spool from bulk line; figs P–R" }, { "name": "Replacement spool cap", "specification": "BLACK+DECKER RC-100, confirmed against the exact tool-type parts list", "fit": "Original compatible AF-100 housing with undamaged slots", "exclude": "Damaged housing; caps with different tabs; forcing an apparently similar part", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" } ], "maintenance": { "trigger": "Before buying or fitting cutting line, a spool or cap", "intervalText": "Inspect when the stated condition occurs. The manual gives no fixed day or month interval.", "basis": "manufacturer", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" }, "fitChecks": [ { "id": "type", "label": "Model and tool type", "accepted": "matched", "options": [ { "value": "", "label": "Choose the version you can confirm" }, { "value": "matched", "label": "LST300 and the exact type on my label match my manufacturer manual and figures" }, { "value": "different", "label": "My type or manual figures differ" }, { "value": "unchecked", "label": "I have not checked the type number" }, { "value": "unknown", "label": "I am not sure" } ], "help": "Remove the battery before finding the label. Use the manufacturer model-and-type lookup; this site does not infer a type number from LST300 alone." }, { "id": "head", "label": "Cutting head", "accepted": "af100", "options": [ { "value": "", "label": "Choose the version you can confirm" }, { "value": "af100", "label": "Original AF-100 automatic-feed single-line head" }, { "value": "bump", "label": "Bump-feed head" }, { "value": "dual", "label": "Dual-line or modified head" }, { "value": "metal", "label": "Metal line or blade" }, { "value": "unknown", "label": "I am not sure" } ], "help": "Do not substitute a bump-feed procedure, dual-line spool or metal cutting attachment." } ] }, { "id": "lst300-spool-replace", "version": "2.0.0", "title": "Replace the cutting-line spool", "deviceFamily": "garden", "intent": "Maintenance", "summary": "Fit a factory-wound AF-100, route its single line through the eyelet and record the cap check before use.", "modelApplicability": [ "lst300-us" ], "modelDetails": [ { "id": "lst300-us", "family": "garden", "brand": "BLACK+DECKER", "series": "LST300", "label": "BLACK+DECKER LST300 · US · AF-100", "region": "US", "componentVersion": "Automatic-feed head with AF-100 spool; match model and tool type to manual", "manual": "lst300-manual", "help": "Remove the battery. Find LST300 and the adjacent type number on the tool label. Compare the guard, cap, spool and assembly figures with the linked LST300 manual. Use ServiceNet for your exact type if they differ. LST300 is not a bump-feed head.", "exclusions": [ "LST420 / LSTE525", "GH corded models", "Dual-line heads", "Metal line or blades", "Nonmatching tool type or modified head" ], "recognitionSource": "bd-manual-help" } ], "exclusions": [ "LST420 / LSTE525", "GH corded models", "Dual-line heads", "Metal line or blades", "Nonmatching tool type or modified head", "Unknown tool type or missing exact-type manual", "Bump-feed conversion" ], "prerequisites": [ "Release the trigger, let the head stop, engage the lock-off and remove the battery. Leave it removed throughout hands-on care. Keep fingers away from the sharp cutter on the guard.", "Read LST300 and the tool type from the label. Open the official model/type lookup and compare its manual and parts figures with your actual guard, single-line head and AF-100 spool. A readable model name alone does not establish the type. If the exact type manual cannot be obtained, or any figure differs, save a preparation record and stop." ], "tools": [ "Good lighting", "Scissors for nylon line only" ], "materials": [ "Compatible factory-wound BLACK+DECKER AF-100 spool" ], "checks": [ { "id": "safety", "prompt": "Is the battery removed, the trigger released and the cutting head stopped, with no battery damage, exposed wiring or faulty switch?", "sourceId": "lst300-manual", "sourceLocator": "English pp2–3 Safety; p8 Installing and removing the battery pack", "options": [ { "id": "yes", "label": "Yes", "next": "compatibility", "advice": "Keep the battery removed for every hands-on step." }, { "id": "no", "label": "No", "next": "service", "advice": "Stop using the tool for electrical, battery or switch damage. If you have only omitted battery removal, make the tool safe before restarting." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] }, { "id": "compatibility", "prompt": "Have you matched the label LST300 AND its exact tool type to the official lookup manual and its figures, with the original AF-100 automatic single-line head?", "sourceId": "bd-manual-help", "sourceLocator": "Official model/type lookup instructions; type is beside or below the model number", "options": [ { "id": "yes", "label": "Yes", "next": "check-1", "advice": "Record the label type and matching manual reference in the first step." }, { "id": "no", "label": "No", "next": "prepared", "advice": "An unknown type, unavailable type manual, different figures, bump-feed head or dual-line conversion blocks this procedure. Use manufacturer support to identify the correct instructions." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] }, { "id": "check-1", "prompt": "Does the replacement package identify AF-100 and 0.065 inch round nylon line?", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "options": [ { "id": "yes", "label": "Yes", "next": "check-2", "advice": "Use the factory-wound spool after confirming the type match." }, { "id": "no", "label": "No", "next": "prepared", "advice": "Use Check the replacement line specification before opening the head." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] }, { "id": "check-2", "prompt": "Are the guard, cap tabs, housing slots and visible feed lever intact?", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O", "options": [ { "id": "yes", "label": "Yes", "next": "steps", "advice": "Work with the removed battery beside the tool." }, { "id": "no", "label": "No", "next": "service", "advice": "A replacement spool cannot repair damaged retaining parts." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] } ], "branches": [ { "checkId": "safety", "optionId": "yes", "next": "compatibility" }, { "checkId": "safety", "optionId": "no", "next": "service" }, { "checkId": "safety", "optionId": "unsure", "next": "prepared" }, { "checkId": "compatibility", "optionId": "yes", "next": "check-1" }, { "checkId": "compatibility", "optionId": "no", "next": "prepared" }, { "checkId": "compatibility", "optionId": "unsure", "next": "prepared" }, { "checkId": "check-1", "optionId": "yes", "next": "check-2" }, { "checkId": "check-1", "optionId": "no", "next": "prepared" }, { "checkId": "check-1", "optionId": "unsure", "next": "prepared" }, { "checkId": "check-2", "optionId": "yes", "next": "steps" }, { "checkId": "check-2", "optionId": "no", "next": "service" }, { "checkId": "check-2", "optionId": "unsure", "next": "prepared" } ], "steps": [ { "title": "Record the exact tool and make it safe", "text": "Release the trigger, let the head stop, engage the lock-off and remove the battery. Leave it removed throughout hands-on care. Keep fingers away from the sharp cutter on the guard. Read LST300 and the tool type from the label. Open the official model/type lookup and compare its manual and parts figures with your actual guard, single-line head and AF-100 spool. A readable model name alone does not establish the type. If the exact type manual cannot be obtained, or any figure differs, save a preparation record and stop.", "observation": "The battery is physically separate from the tool; your label type and matching manual reference are written below.", "sourceId": "bd-manual-help", "sourceLocator": "Official model/type lookup instructions; type is beside or below the model number", "requiredFields": [ "tool-type", "matched-manual" ], "id": "step-1" }, { "title": "Release the cap and lift out the spool", "text": "Squeeze both cap tabs and lift the cap from the housing. Hold the housing with one hand and draw the old spool out with the other. Keep the parts together; avoid pulling on the feed lever.", "observation": "The cap and spool separate without a pry tool; both tabs remain intact.", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O", "id": "step-2" }, { "title": "Clear and check the empty housing", "text": "Remove loose grass and dirt from the spool and housing. Find the central boss and the lever shown in fig N. If the lever has moved, refit it only when its pictured position is clear; otherwise stop for help.", "observation": "The boss is clear and the lever matches fig N without being forced.", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O", "id": "step-3" }, { "title": "Thread the one line exit", "text": "Release the new spool line from its transport hold and pass that end through the housing eyelet shown in fig O. Keep the line outside the rim where it exits; do not trap it beneath the spool.", "observation": "One nylon line passes through the eyelet, with no second outlet or doubled strand.", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O", "id": "step-4" }, { "title": "Seat the spool on its boss", "text": "Push the spool onto the central boss and turn it slightly until it settles. Arrange approximately 5-3/8 inches (136 mm) of line outside the housing. Keep the lever in its documented position.", "observation": "The spool sits down in the housing; it does not rock above its seat.", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O", "id": "step-5" }, { "title": "Latch the cap and limit the line", "text": "Align both cap tabs with the housing slots and push until securely snapped in. Check that both sides hold. If nylon extends past the guard cutter, use scissors to shorten it so it only reaches the blade; keep hands away from the blade.", "observation": "Both tabs retain the cap and no line is trapped under its rim or extends beyond the cutter.", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O", "id": "step-6" }, { "title": "Record the refit before returning to use", "text": "Keep the battery out while you record the spool identity and cap result. Finish Verify the trimmer after maintenance before any normal-use test. A cap that lifts or a spool that will not settle needs the cap-latch check or service.", "observation": "The record describes the fitted part and a secure cap; operating performance is still untested.", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O", "id": "step-7" } ], "outcomeChecks": [ { "id": "outcome-1", "text": "AF-100 is seated on the boss and its single line exits through the eyelet.", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O" }, { "id": "outcome-2", "text": "Both cap tabs hold; the guard is secure and the line reaches no farther than the cutter.", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O" } ], "stopConditions": [ "Keep the battery removed if the exact type/manual match is unknown or parts differ from the figures.", "Stop for a damaged battery, exposed wiring, a faulty switch, cracked guard, broken spool/hub, damaged cap tabs or housing slots. Use an authorized service center. Never open the battery, motor housing or charger." ], "sources": [ { "id": "lst300-manual", "title": "BLACK+DECKER LST300 instruction manual (manufacturer document, retailer-hosted)", "url": "https://pdf.lowes.com/productdocuments/1935f26b-7448-4c95-b467-a223bb73d80f/63056925.pdf", "checkedAt": "2026-10-13", "use": "Safety, assembly, replacement spool/line, maintenance and troubleshooting. Match the tool type and figures before use.", "license": "Manufacturer copyright, hosted by Lowe’s. Facts paraphrased; no diagrams or manual redistributed.", "region": "US", "locator": "English pp9–10 Replacing the spool; figs M–O" }, { "id": "bd-manual-help", "title": "BLACK+DECKER: locate a manual using model and type number", "url": "https://support.blackanddecker.com/hc/en-us/articles/360012700118-How-can-I-get-a-parts-list-or-manual-for-my-tool", "checkedAt": "2026-10-13", "use": "Model/type number identification and authoritative ServiceNet lookup", "license": "Linked only.", "region": "US", "locator": "Official model/type lookup instructions; type is beside or below the model number" }, { "id": "lst300-product", "title": "BLACK+DECKER LST300 product and support", "url": "https://www.blackanddecker.com/products/lst300", "checkedAt": "2026-10-13", "use": "Model identity, automatic feed, AF-100 included spool", "license": "Linked only; no product photos reused.", "region": "US", "locator": "LST300 model identity; Automatic Feed Spool; Includes AF-100" } ], "assets": [ { "path": "/assets/garden/spool-replace.svg", "title": "AF-100 removal, single-eyelet routing and cap refit", "kind": "Original sequence schematic; compare the exact tool-type manual for shape and location", "sourceId": "lst300-manual" } ], "relatedIds": [ "lst300-line-spec", "lst300-cap-latch", "lst300-after-care" ], "specs": [ { "name": "Round nylon line diameter", "value": 0.065, "unit": "inches", "condition": "Equivalent specification in the manual: 1.65 mm; round monofilament only", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" }, { "name": "Initial line projection", "value": 136, "unit": "mm", "condition": "Approximately 5-3/8 inches in the manual; shorten any excess so it only reaches the guard cutter", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O" } ], "updatedAt": "2026-10-13", "estimatedDuration": null, "group": "lst300-spool", "recordFields": [ { "id": "tool-type", "label": "Tool type exactly as printed on the label", "type": "text", "required": true, "dependsOnStep": "step-1" }, { "id": "matched-manual", "label": "Exact-type manual reference or link that you matched", "type": "text", "required": true, "dependsOnStep": "step-1" }, { "id": "spool-package", "label": "Spool marking checked", "type": "text", "required": true, "dependsOnStep": "step-2" }, { "id": "cap-check", "label": "Cap after refitting", "type": "select", "options": [ { "value": "secure", "label": "Both tabs hold" }, { "value": "loose", "label": "Loose, damaged or uncertain", "resultGate": "service" } ], "required": true, "dependsOnStep": "step-6" }, { "id": "final-result", "label": "Result of this task", "type": "select", "options": [ { "value": "ready", "label": "Checks passed; ready for the stated next step" }, { "value": "follow-up", "label": "More preparation or a linked task is needed", "resultGate": "prepared" }, { "value": "service", "label": "Leave unused and contact service", "resultGate": "service" } ], "required": true, "dependsOnStep": "step-7" } ], "consumables": [ { "name": "Factory-wound replacement spool", "specification": "BLACK+DECKER AF-100; 0.065 inch (1.65 mm) round nylon monofilament", "fit": "Original LST300 automatic single-line head, after exact tool-type/manual match", "exclude": "Bump-feed or dual-line heads; metal, serrated or heavier line; unverified replacement heads", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" }, { "name": "Replacement spool cap", "specification": "BLACK+DECKER RC-100, confirmed against the exact tool-type parts list", "fit": "Original compatible AF-100 housing with undamaged slots", "exclude": "Damaged housing; caps with different tabs; forcing an apparently similar part", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" } ], "maintenance": { "trigger": "Spool empty or insufficient usable line remains", "intervalText": "Inspect when the stated condition occurs. The manual gives no fixed day or month interval.", "basis": "manufacturer", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O" }, "fitChecks": [ { "id": "type", "label": "Model and tool type", "accepted": "matched", "options": [ { "value": "", "label": "Choose the version you can confirm" }, { "value": "matched", "label": "LST300 and the exact type on my label match my manufacturer manual and figures" }, { "value": "different", "label": "My type or manual figures differ" }, { "value": "unchecked", "label": "I have not checked the type number" }, { "value": "unknown", "label": "I am not sure" } ], "help": "Remove the battery before finding the label. Use the manufacturer model-and-type lookup; this site does not infer a type number from LST300 alone." }, { "id": "head", "label": "Cutting head", "accepted": "af100", "options": [ { "value": "", "label": "Choose the version you can confirm" }, { "value": "af100", "label": "Original AF-100 automatic-feed single-line head" }, { "value": "bump", "label": "Bump-feed head" }, { "value": "dual", "label": "Dual-line or modified head" }, { "value": "metal", "label": "Metal line or blade" }, { "value": "unknown", "label": "I am not sure" } ], "help": "Do not substitute a bump-feed procedure, dual-line spool or metal cutting attachment." } ] }, { "id": "lst300-feed-failure", "version": "2.0.0", "title": "Check automatic line feed failure", "deviceFamily": "garden", "intent": "Troubleshooting", "summary": "Distinguish insufficient line, crossed winding and a restricted feed lever before reassembly and a separate retest.", "modelApplicability": [ "lst300-us" ], "modelDetails": [ { "id": "lst300-us", "family": "garden", "brand": "BLACK+DECKER", "series": "LST300", "label": "BLACK+DECKER LST300 · US · AF-100", "region": "US", "componentVersion": "Automatic-feed head with AF-100 spool; match model and tool type to manual", "manual": "lst300-manual", "help": "Remove the battery. Find LST300 and the adjacent type number on the tool label. Compare the guard, cap, spool and assembly figures with the linked LST300 manual. Use ServiceNet for your exact type if they differ. LST300 is not a bump-feed head.", "exclusions": [ "LST420 / LSTE525", "GH corded models", "Dual-line heads", "Metal line or blades", "Nonmatching tool type or modified head" ], "recognitionSource": "bd-manual-help" } ], "exclusions": [ "LST420 / LSTE525", "GH corded models", "Dual-line heads", "Metal line or blades", "Nonmatching tool type or modified head", "Unknown tool type or missing exact-type manual", "Bump-feed conversion" ], "prerequisites": [ "Release the trigger, let the head stop, engage the lock-off and remove the battery. Leave it removed throughout hands-on care. Keep fingers away from the sharp cutter on the guard.", "Read LST300 and the tool type from the label. Open the official model/type lookup and compare its manual and parts figures with your actual guard, single-line head and AF-100 spool. A readable model name alone does not establish the type. If the exact type manual cannot be obtained, or any figure differs, save a preparation record and stop." ], "tools": [ "Good lighting", "Scissors for nylon only" ], "materials": [ "Compatible AF-100 spool only if current line is insufficient" ], "checks": [ { "id": "safety", "prompt": "Is the battery removed, the trigger released and the cutting head stopped, with no battery damage, exposed wiring or faulty switch?", "sourceId": "lst300-manual", "sourceLocator": "English pp2–3 Safety; p8 Installing and removing the battery pack", "options": [ { "id": "yes", "label": "Yes", "next": "compatibility", "advice": "Keep the battery removed for every hands-on step." }, { "id": "no", "label": "No", "next": "service", "advice": "Stop using the tool for electrical, battery or switch damage. If you have only omitted battery removal, make the tool safe before restarting." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] }, { "id": "compatibility", "prompt": "Have you matched the label LST300 AND its exact tool type to the official lookup manual and its figures, with the original AF-100 automatic single-line head?", "sourceId": "bd-manual-help", "sourceLocator": "Official model/type lookup instructions; type is beside or below the model number", "options": [ { "id": "yes", "label": "Yes", "next": "check-1", "advice": "Record the label type and matching manual reference in the first step." }, { "id": "no", "label": "No", "next": "prepared", "advice": "An unknown type, unavailable type manual, different figures, bump-feed head or dual-line conversion blocks this procedure. Use manufacturer support to identify the correct instructions." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] }, { "id": "check-1", "prompt": "Was the observed problem failure to advance line on the original automatic-feed head?", "sourceId": "lst300-manual", "sourceLocator": "English pp10–11 Automatic line feed does not work; figs N, Q, R", "options": [ { "id": "yes", "label": "Yes", "next": "check-2", "advice": "Never bump this head to attempt a feed." }, { "id": "no", "label": "No", "next": "prepared", "advice": "Use the slow-running or cap-latch task for those different symptoms." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] }, { "id": "check-2", "prompt": "Are the cap, guard and housing intact and the remaining line the specified round nylon?", "sourceId": "lst300-manual", "sourceLocator": "English pp10–11 Automatic line feed does not work; figs N, Q, R", "options": [ { "id": "yes", "label": "Yes", "next": "steps", "advice": "Check remaining line and the winding first." }, { "id": "no", "label": "No", "next": "service", "advice": "Damaged parts require service; verify an unknown line specification before continuing." }, { "id": "unsure", "label": "Not sure", "next": "prepared", "advice": "Keep the battery removed. Save your preparation record and check the matching manual before continuing." } ] } ], "branches": [ { "checkId": "safety", "optionId": "yes", "next": "compatibility" }, { "checkId": "safety", "optionId": "no", "next": "service" }, { "checkId": "safety", "optionId": "unsure", "next": "prepared" }, { "checkId": "compatibility", "optionId": "yes", "next": "check-1" }, { "checkId": "compatibility", "optionId": "no", "next": "prepared" }, { "checkId": "compatibility", "optionId": "unsure", "next": "prepared" }, { "checkId": "check-1", "optionId": "yes", "next": "check-2" }, { "checkId": "check-1", "optionId": "no", "next": "prepared" }, { "checkId": "check-1", "optionId": "unsure", "next": "prepared" }, { "checkId": "check-2", "optionId": "yes", "next": "steps" }, { "checkId": "check-2", "optionId": "no", "next": "service" }, { "checkId": "check-2", "optionId": "unsure", "next": "prepared" } ], "steps": [ { "title": "Record the exact tool and make it safe", "text": "Release the trigger, let the head stop, engage the lock-off and remove the battery. Leave it removed throughout hands-on care. Keep fingers away from the sharp cutter on the guard. Read LST300 and the tool type from the label. Open the official model/type lookup and compare its manual and parts figures with your actual guard, single-line head and AF-100 spool. A readable model name alone does not establish the type. If the exact type manual cannot be obtained, or any figure differs, save a preparation record and stop.", "observation": "The battery is physically separate from the tool; your label type and matching manual reference are written below.", "sourceId": "bd-manual-help", "sourceLocator": "Official model/type lookup instructions; type is beside or below the model number", "requiredFields": [ "tool-type", "matched-manual" ], "id": "step-1" }, { "title": "Open and record the line condition", "text": "Release the cap tabs and remove the cap with the battery out. Note whether line remains on the spool, is crossed or knotted, or has retracted inside the eyelet. Do not pull hard against a jam.", "observation": "You have recorded what is visible before changing the winding.", "sourceId": "lst300-manual", "sourceLocator": "English pp10–11 Automatic line feed does not work; figs N, Q, R", "id": "step-2" }, { "title": "Choose the supply remedy", "text": "If too little usable line remains, fit a compatible AF-100 using the spool task. If adequate line remains, pull it gently to approximately 5-3/8 inches (136 mm). Stop pulling if it binds; lift out the spool for inspection.", "observation": "There is enough compatible line, or a replacement task has been identified.", "sourceId": "lst300-manual", "sourceLocator": "English pp10–11 Automatic line feed does not work; figs N, Q, R", "id": "step-3" }, { "title": "Check winding and its anchor", "text": "Look for crossed layers and check that the beginning of the line is held tight against the spool as fig Q shows. Correct a hand-wound spool only with the full figs P–R rewind sequence, or use factory-wound AF-100.", "observation": "Line layers do not cross and the anchor is tight; no generic anchor method is substituted.", "sourceId": "lst300-manual", "sourceLocator": "English pp10–11 Automatic line feed does not work; figs N, Q, R", "id": "step-4" }, { "title": "Check the exposed feed lever", "text": "With the spool removed, carefully clear loose grass and dirt from the housing. Check that the lever can move freely without force and matches fig N. Do not remove the lever for cleaning, add lubricant or open the motor.", "observation": "The lever moves freely and is in its pictured position; stiffness or damage is recorded for service.", "sourceId": "lst300-manual", "sourceLocator": "English pp10–11 Automatic line feed does not work; figs N, Q, R", "id": "step-5" }, { "title": "Refit and limit the line", "text": "Route the single line through the eyelet, seat the spool on its boss and latch both cap tabs. Shorten any nylon that extends past the guard cutter so it just reaches the cutter.", "observation": "The cap is secure, line path is clear and the line is not overlong.", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O", "id": "step-6" }, { "title": "Save the cause found and next check", "text": "Record which condition you corrected. Use Verify the trimmer after maintenance for a normal-use test. If feeding still fails after correct winding and cleaning, stop and contact service with this record.", "observation": "An observed feed result is kept separate from the unpowered repair checks.", "sourceId": "lst300-manual", "sourceLocator": "English pp10–11 Automatic line feed does not work; figs N, Q, R", "id": "step-7" } ], "outcomeChecks": [ { "id": "outcome-1", "text": "Sufficient correct line, uncrossed layers and the fig Q anchor have been checked.", "sourceId": "lst300-manual", "sourceLocator": "English pp10–11 Automatic line feed does not work; figs N, Q, R" }, { "id": "outcome-2", "text": "The lever is free, the spool is seated and the cap is secure before any retest.", "sourceId": "lst300-manual", "sourceLocator": "English pp10–11 Automatic line feed does not work; figs N, Q, R" } ], "stopConditions": [ "Keep the battery removed if the exact type/manual match is unknown or parts differ from the figures.", "Stop for a damaged battery, exposed wiring, a faulty switch, cracked guard, broken spool/hub, damaged cap tabs or housing slots. Use an authorized service center. Never open the battery, motor housing or charger." ], "sources": [ { "id": "lst300-manual", "title": "BLACK+DECKER LST300 instruction manual (manufacturer document, retailer-hosted)", "url": "https://pdf.lowes.com/productdocuments/1935f26b-7448-4c95-b467-a223bb73d80f/63056925.pdf", "checkedAt": "2026-10-13", "use": "Safety, assembly, replacement spool/line, maintenance and troubleshooting. Match the tool type and figures before use.", "license": "Manufacturer copyright, hosted by Lowe’s. Facts paraphrased; no diagrams or manual redistributed.", "region": "US", "locator": "English pp10–11 Automatic line feed does not work; figs N, Q, R" }, { "id": "bd-manual-help", "title": "BLACK+DECKER: locate a manual using model and type number", "url": "https://support.blackanddecker.com/hc/en-us/articles/360012700118-How-can-I-get-a-parts-list-or-manual-for-my-tool", "checkedAt": "2026-10-13", "use": "Model/type number identification and authoritative ServiceNet lookup", "license": "Linked only.", "region": "US", "locator": "Official model/type lookup instructions; type is beside or below the model number" }, { "id": "lst300-product", "title": "BLACK+DECKER LST300 product and support", "url": "https://www.blackanddecker.com/products/lst300", "checkedAt": "2026-10-13", "use": "Model identity, automatic feed, AF-100 included spool", "license": "Linked only; no product photos reused.", "region": "US", "locator": "LST300 model identity; Automatic Feed Spool; Includes AF-100" } ], "assets": [ { "path": "/assets/garden/feed-check.svg", "title": "Line supply, winding and visible lever inspection", "kind": "Original sequence schematic; compare the exact tool-type manual for shape and location", "sourceId": "lst300-manual" } ], "relatedIds": [ "lst300-spool-rewind", "lst300-spool-replace", "lst300-after-care" ], "specs": [ { "name": "Round nylon line diameter", "value": 0.065, "unit": "inches", "condition": "Equivalent specification in the manual: 1.65 mm; round monofilament only", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" }, { "name": "Initial line projection", "value": 136, "unit": "mm", "condition": "Approximately 5-3/8 inches in the manual; shorten any excess so it only reaches the guard cutter", "sourceId": "lst300-manual", "sourceLocator": "English pp9–10 Replacing the spool; figs M–O" } ], "updatedAt": "2026-10-13", "estimatedDuration": null, "group": "lst300-feed", "recordFields": [ { "id": "tool-type", "label": "Tool type exactly as printed on the label", "type": "text", "required": true, "dependsOnStep": "step-1" }, { "id": "matched-manual", "label": "Exact-type manual reference or link that you matched", "type": "text", "required": true, "dependsOnStep": "step-1" }, { "id": "feed-finding", "label": "Condition found", "type": "select", "options": [ { "value": "empty", "label": "Insufficient line" }, { "value": "crossed", "label": "Crossed or tangled winding" }, { "value": "anchor", "label": "Loose line anchor" }, { "value": "lever", "label": "Dirty or restricted lever" }, { "value": "unclear", "label": "No clear cause" } ], "required": true, "dependsOnStep": "step-2" }, { "id": "feed-remedy", "label": "Action completed or linked task still needed", "type": "text", "required": true, "dependsOnStep": "step-6" }, { "id": "final-result", "label": "Result of this task", "type": "select", "options": [ { "value": "ready", "label": "Checks passed; ready for the stated next step" }, { "value": "follow-up", "label": "More preparation or a linked task is needed", "resultGate": "prepared" }, { "value": "service", "label": "Leave unused and contact service", "resultGate": "service" } ], "required": true, "dependsOnStep": "step-7" } ], "consumables": [ { "name": "Factory-wound replacement spool", "specification": "BLACK+DECKER AF-100; 0.065 inch (1.65 mm) round nylon monofilament", "fit": "Original LST300 automatic single-line head, after exact tool-type/manual match", "exclude": "Bump-feed or dual-line heads; metal, serrated or heavier line; unverified replacement heads", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories" }, { "name": "Bulk cutting line", "specification": "0.065 inch (1.65 mm) round nylon monofilament", "fit": "Intact original AF-100 spool with the slot, adjacent anchor hole, arrow and fill recesses in figs P–R", "exclude": "Serrated, square, heavier or metal line; different anchor geometry", "sourceId": "lst300-manual", "sourceLocator": "English p10 Rewinding spool from bulk line; figs P–R" } ], "maintenance": { "trigger": "Automatic feed fails or the spool jams", "intervalText": "Inspect when the stated condition occurs. The manual gives no fixed day or month interval.", "basis": "manufacturer", "sourceId": "lst300-manual", "sourceLocator": "English pp10–11 Automatic line feed does not work; figs N, Q, R" }, "fitChecks": [ { "id": "type", "label": "Model and tool type", "accepted": "matched", "options": [ { "value": "", "label": "Choose the version you can confirm" }, { "value": "matched", "label": "LST300 and the exact type on my label match my manufacturer manual and figures" }, { "value": "different", "label": "My type or manual figures differ" }, { "value": "unchecked", "label": "I have not checked the type number" }, { "value": "unknown", "label": "I am not sure" } ], "help": "Remove the battery before finding the label. Use the manufacturer model-and-type lookup; this site does not infer a type number from LST300 alone." }, { "id": "head", "label": "Cutting head", "accepted": "af100", "options": [ { "value": "", "label": "Choose the version you can confirm" }, { "value": "af100", "label": "Original AF-100 automatic-feed single-line head" }, { "value": "bump", "label": "Bump-feed head" }, { "value": "dual", "label": "Dual-line or modified head" }, { "value": "metal", "label": "Metal line or blade" }, { "value": "unknown", "label": "I am not sure" } ], "help": "Do not substitute a bump-feed procedure, dual-line spool or metal cutting attachment." } ] } ], "consumables": [ { "name": "Factory-wound replacement spool", "specification": "BLACK+DECKER AF-100; 0.065 inch (1.65 mm) round nylon monofilament", "fit": "Original LST300 automatic single-line head, after exact tool-type/manual match", "exclude": "Bump-feed or dual-line heads; metal, serrated or heavier line; unverified replacement heads", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "taskId": "lst300-line-spec" }, { "name": "Bulk cutting line", "specification": "0.065 inch (1.65 mm) round nylon monofilament", "fit": "Intact original AF-100 spool with the slot, adjacent anchor hole, arrow and fill recesses in figs P–R", "exclude": "Serrated, square, heavier or metal line; different anchor geometry", "sourceId": "lst300-manual", "sourceLocator": "English p10 Rewinding spool from bulk line; figs P–R", "taskId": "lst300-line-spec" }, { "name": "Replacement spool cap", "specification": "BLACK+DECKER RC-100, confirmed against the exact tool-type parts list", "fit": "Original compatible AF-100 housing with undamaged slots", "exclude": "Damaged housing; caps with different tabs; forcing an apparently similar part", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "taskId": "lst300-line-spec" }, { "name": "Factory-wound replacement spool", "specification": "BLACK+DECKER AF-100; 0.065 inch (1.65 mm) round nylon monofilament", "fit": "Original LST300 automatic single-line head, after exact tool-type/manual match", "exclude": "Bump-feed or dual-line heads; metal, serrated or heavier line; unverified replacement heads", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "taskId": "lst300-spool-replace" }, { "name": "Replacement spool cap", "specification": "BLACK+DECKER RC-100, confirmed against the exact tool-type parts list", "fit": "Original compatible AF-100 housing with undamaged slots", "exclude": "Damaged housing; caps with different tabs; forcing an apparently similar part", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "taskId": "lst300-spool-replace" }, { "name": "Factory-wound replacement spool", "specification": "BLACK+DECKER AF-100; 0.065 inch (1.65 mm) round nylon monofilament", "fit": "Original LST300 automatic single-line head, after exact tool-type/manual match", "exclude": "Bump-feed or dual-line heads; metal, serrated or heavier line; unverified replacement heads", "sourceId": "lst300-manual", "sourceLocator": "English p9 Cutting line / Line feeding; Replacement accessories", "taskId": "lst300-feed-failure" }, { "name": "Bulk cutting line", "specification": "0.065 inch (1.65 mm) round nylon monofilament", "fit": "Intact original AF-100 spool with the slot, adjacent anchor hole, arrow and fill recesses in figs P–R", "exclude": "Serrated, square, heavier or metal line; different anchor geometry", "sourceId": "lst300-manual", "sourceLocator": "English p10 Rewinding spool from bulk line; figs P–R", "taskId": "lst300-feed-failure" } ], "sources": [ { "id": "lst300-manual", "title": "BLACK+DECKER LST300 instruction manual (manufacturer document, retailer-hosted)", "url": "https://pdf.lowes.com/productdocuments/1935f26b-7448-4c95-b467-a223bb73d80f/63056925.pdf", "checkedAt": "2026-10-13", "use": "Safety, assembly, replacement spool/line, maintenance and troubleshooting. Match the tool type and figures before use.", "license": "Manufacturer copyright, hosted by Lowe’s. Facts paraphrased; no diagrams or manual redistributed.", "region": "US", "locator": "English p9 Cutting line / Line feeding; Replacement accessories; English pp9–10 Replacing the spool; figs M–O; English pp10–11 Automatic line feed does not work; figs N, Q, R" }, { "id": "bd-manual-help", "title": "BLACK+DECKER: locate a manual using model and type number", "url": "https://support.blackanddecker.com/hc/en-us/articles/360012700118-How-can-I-get-a-parts-list-or-manual-for-my-tool", "checkedAt": "2026-10-13", "use": "Model/type number identification and authoritative ServiceNet lookup", "license": "Linked only.", "region": "US", "locator": "Official model/type lookup instructions; type is beside or below the model number" }, { "id": "lst300-product", "title": "BLACK+DECKER LST300 product and support", "url": "https://www.blackanddecker.com/products/lst300", "checkedAt": "2026-10-13", "use": "Model identity, automatic feed, AF-100 included spool", "license": "Linked only; no product photos reused.", "region": "US", "locator": "LST300 model identity; Automatic Feed Spool; Includes AF-100" } ] }