How do you reload a trimmer spool?
To reload the spool on your Craftsman 15174580 cordless line trimmer, remove the spool cap, wind new trimmer line evenly in the direction shown on the spool, then lock the line ends in the retaining notches and reinstall the cap so the line feeds smoothly.
- Power the trimmer off and remove the battery (or unplug, if applicable).
- Wear gloves and eye protection; trimmer line ends can be sharp.
- Use the line diameter recommended in the Craftsman 15174580 owner's manual.
- Remove the cap: Press the tabs (or twist, depending on your head style) and lift off the cap.
- Remove the spool: Pull the spool straight out and clean out grass and debris.
- Cut two equal lengths of line (common lengths are 10 to 20 feet total, depending on spool size).
- Anchor the line in the spool’s start hole/slot.
- Wind in the direction of travel: Follow the arrow on the spool; keep tension so the wraps lay tight and even.
- Lock the ends: Hook the line into the spool’s retaining notches so it does not unravel.
- Reinstall: Put the spool back in, thread the line through the eyelets, then snap on the Craftsman line trimmer spool cap 221007115.
- Wrong wind direction: Rewind to match the spool arrow.
- Overfilled spool: Remove some line; the cap must seat fully.
- Cross-wound line: Rewind with steady tension and neat layers.
- Dirty head/eyelets: Clean debris; replace damaged parts if needed.
| Symptom | Most common cause | What to do |
|---|---|---|
| Line unravels when you reinstall | Line not locked in notches | Rehook ends in retaining notches |
| Line jams and will not advance | Cross-wound or overfilled spool | Rewind evenly; reduce line amount |
| Cap will not snap on | Spool not seated or too much line | Reseat spool; remove excess line |
Correct winding direction and locking the line ends prevents tangles, improves cutting performance, and reduces wear on the spool cap and guard.
Last updated: February 2026
Is Trimmer Plus compatible with Craftsman?
TrimmerPlus compatibility depends on the attachment connection system, not the Craftsman name alone. For Craftsman model 15174580 (a cordless line trimmer), TrimmerPlus attachments typically do not fit because most TrimmerPlus tools are designed for attachment-capable powerheads with a coupler.
Check these quick identifiers in the 15174580 owner's manual:
- A visible attachment coupler (usually a collar/knob) between the motor section and the shaft
- A split shaft design where the lower shaft can be removed
- A mention of “attachment capable” or a list of supported attachments
- A drive connection style (square/hex/flexible cable) described for attachments
- A dedicated attachment release button or locking pin
If your trimmer has a fixed shaft with no coupler, it is a dedicated string trimmer and is not designed for TrimmerPlus add-ons.
Even when a trimmer is attachment-capable, these specs must match:
| Compatibility item | Must match for TrimmerPlus to work | What you’ll see on the tool |
|---|---|---|
| Coupler system | Yes | Collar/knob coupler at mid-shaft |
| Shaft type | Usually split shaft | Upper and lower sections separate |
| Drive interface | Yes | Internal drive cable/shaft style |
| Power source | Not a fit factor | Cordless vs gas does not guarantee fit |
Many “compatibility” questions come up when the trimmer is not feeding line or the head will not stay together. For this model, common wear items include:
- Craftsman line trimmer spool cap 221007115 if the cap will not latch or keeps popping off
- Guard 221007113 if the debris shield is cracked or missing
- Line trimmer handle assembly 261009109 if the grip, trigger area, or handle mount is damaged
Using an attachment that does not match the coupler and drive system can strip the drive interface, cause vibration, and reduce cutting performance. Confirming the connection style first prevents buying the wrong accessory.
Last updated: February 2026
What is the best string trimmer line to use?
For the Craftsman 15174580 cordless line trimmer, the best trimmer line is the diameter and shape your trimmer head is designed to feed reliably. Most homeowners get the best results with round line for everyday trimming and twist or serrated line for thicker weeds, as long as it matches the size listed in the 15174580 owner's manual.
Use these factors to pick line that cuts well without constant jams or poor feed:
- Diameter (most important): Use the exact size your spool and cap are built for; too thick can stall the head, too thin breaks fast.
- Line shape: Round is smooth-feeding; twist cuts cleaner with less noise; serrated is aggressive but can wear faster.
- Material: Standard nylon is fine for grass; “commercial” blends last longer in abrasive edging.
- Where you trim: Light grass needs less; fence lines and concrete edging chew through line quickly.
- Feed style: If your head is bump-feed or auto-feed, stick with line types known to feed smoothly.
| Line type | Best for | Tradeoff |
|---|---|---|
| Round | General trimming, easy feeding | Less bite on thick weeds |
| Twist | Mixed grass and weeds | Can cost more |
| Serrated (star) | Heavy weeds, fast cutting | Can be noisier, may wear faster |
These checks usually fix the problem on Craftsman trimmers:
- Wind the line evenly and do not overfill the spool.
- Keep the line ends cleanly cut before threading.
- Replace a cracked or loose cap; a worn cap can cause poor feed (see Craftsman line trimmer spool cap 221007115).
- Make sure the guard is installed correctly; it helps control line length (see guard 221007113).
- Avoid running the head into dirt, rocks, and concrete edges.
Using the correct line size and a feed-friendly shape reduces jams, improves cutting power, and helps protect the spool cap and guard from premature wear.
Last updated: February 2026
What is the difference between a 2.4 and 2.7 trimmer line?
A 2.7 mm trimmer line is thicker than 2.4 mm, so it resists breaking longer in heavier weeds; 2.4 mm feeds easier and puts less load on the motor. For Craftsman model 15174580, use the line diameter your trimmer head and spool are designed to handle.
| Line size | Best for | What you notice most | Tradeoff |
|---|---|---|---|
| 2.4 mm | Grass, edging, light weeds | Smoother cutting and easier line advance | Wears faster near rocks and fences |
| 2.7 mm | Taller grass, thicker weeds | Better durability and fewer breaks | More drag; can reduce feed performance |
- Start with the diameter listed for your trimmer head in the 15174580 owner’s manual.
- If the motor bogs down, vibration increases, or line advance becomes inconsistent, step down to 2.4 mm.
- If line breaks constantly in tough weeds or around abrasive surfaces, step up to 2.7 mm (only if your head is rated for it).
- Wind the spool evenly and do not overfill; overfilling causes binding with any diameter.
- If the line will not advance, inspect the spool cap for wear or damage; a loose cap can let the spool shift and jam (see Craftsman line trimmer spool cap 221007115).
Line diameter changes cutting load and feed reliability. Matching the correct diameter to the trimmer head helps the 15174580 cut efficiently without excessive drag, jamming, or premature line breakage.
Last updated: February 2026
What size is the fuel line on a Craftsman trimmer?
Craftsman model 15174580 is an electric (cordless) line trimmer, so it does not use gasoline and it has no fuel line. If you are working on a gas Craftsman trimmer instead, use the model number to match the correct fuel tubing size in the parts list and the 15174580 owner's manual.
Electric and gas trimmers use very different parts. Use these quick checks:
- Battery/charger present: cordless electric, no fuel system
- Power cord present: corded electric, no fuel system
- Fuel tank, primer bulb, carburetor: gas model, fuel line applies
- Model tag should read 15174580 for this unit
For gas models, fuel line is matched by inside diameter (ID), outside diameter (OD), and routing. Do this:
- Measure the ID of the old tubing with calipers
- Match the tubing to the fitting barb size (tank grommet, carb, primer)
- Replace brittle tubing; air leaks cause hard starting and stalling
| Fuel line ID (common) | Where it’s often used |
|---|---|
| 3/32 in. | Return or primer line |
| 1/8 in. | Supply line |
| 3/16 in. | Larger fittings on some models |
If your goal is to keep this electric trimmer cutting reliably, these are typical service items:
- Guard 221007113 to protect the user and help control debris
- Craftsman line trimmer spool cap 221007115 if the cap will not latch or keeps loosening
- Line trimmer handle assembly 261009109 if the handle is cracked or won’t tighten
Ordering fuel tubing for an electric trimmer wastes time and delays the real fix. Matching parts to the correct power type (battery, corded, or gas) gets you back to trimming faster.
Last updated: February 2026


