§ Product Support
String Trimmer Support Center
Installation guides, maintenance tips, and troubleshooting — organized by what you need to do right now.
§ Step 1
Installation & Setup
Get the right part installed correctly the first time.
Setup Guide
Choosing Trimmer Line Gauge: 0.065" vs 0.080" vs 0.095"
Setup Guide
How to Wind a Trimmer Spool (Single & Dual Line)
Setup Guide
How to Wind a Trimmer Spool Without Tangling
Setup Guide
How to Measure Your Old Spool to Find a Replacement
Setup Guide
Portland 62567 Trimmer Spool — The Hard-to-Find Part for Harbor Freight Trimmers
Setup Guide
Replace an Auto-Feed Spool (AF-100, Ryobi, Greenworks)
Setup Guide
Trimmer Head Types: Auto-Feed vs Bump vs Fixed-Line
Setup Guide
Best Replacement Spools, by Brand
Setup Guide
Black+Decker AF-100 Spool: Best Aftermarket Replacement for BESTA510
Setup Guide
Cordless Trimmer Line: Matching Gauge to Voltage
Setup Guide
Craftsman V60 vs Ryobi 40V HP — Replacement Spool Comparison for 2026
Setup Guide
DeWalt 60V FlexVolt Trimmer — Which Replacement Spools Actually Fit
Setup Guide
DeWalt DCST925 Spool Replacement — OEM vs Aftermarket, What Reddit Actually Recommends
Setup Guide
Greenworks 60V/80V Trimmer Spool — Dual Line Replacement That Actually Feeds
Setup Guide
HART 20V Trimmer Spool Replacement — The Aftermarket Pick That Fits
Setup Guide
Milwaukee M18 FUEL String Trimmer — Which Line and Head Fits?
§ Step 2
Maintenance & Repair
Keep your trimmer running smoothly. Troubleshoot common problems.
Maintenance
Auto-Feed Trimmer Head Not Advancing Line — Troubleshooting Guide
Maintenance
Trimmer Line Keeps Breaking? Common Causes and Easy Fixes
Maintenance
Trimmer Line Won't Feed: A Troubleshooting Checklist
Maintenance
Echo Speed-Feed Universal Trimmer Head — The Upgrade That Fits DeWalt, Milwaukee, Ryobi, and More
Maintenance
Greenworks 40V Trimmer Line Keeps Breaking — The Upgrade Path That Fixed It
Maintenance
Milwaukee M18 Trimmer Keeps Jamming — The Fix That Actually Works
Maintenance
Trimmer Line Gauge Guide: .065 vs .080 vs .095 — Which to Use
Maintenance
Weekend Fence Line Cleanup — Which Trimmer Line Gets It Done Without Breaking
Maintenance
Why Your Spool Keeps Jamming
§ Step 3
Buying Guides & Technical Info
Understand your equipment, compare options, and make informed decisions.
Guide
Best Aftermarket Trimmer Head for Ryobi — Value Picks
Guide
Bulk Trimmer Line vs Pre-Wound Spools — The Real Cost Breakdown
Guide
EGO 56V PowerLoad Trimmer Line Compatibility — What Fits the 2026 Models
Guide
Fall Trimmer Storage Guide — Protect Your Line and Spool Over Winter
Guide
Ryobi 40V HP Whisper Series Trimmer — Will Your Current Spools Still Fit?
Guide
Spring Trimmer Prep Checklist — Get Your String Trimmer Ready in 20 Minutes
Guide
Toro 51831 Trimmer Line: Pre-Spooled .080 That Saves 20 Minutes
Guide
Toro Flex-Force 60V Trimmer Line-Up — Complete Parts Compatibility Guide
Guide
Trimmer Spool Line Keeps Curling Up? Here Is What Is Actually Happening
Guide
Twisted vs Round vs Serrated Trimmer Line
Need more help?
Check your equipment manufacturer's official support resources for model-specific manuals and warranty information.