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
Trimmer Line Size: .065 vs .080 vs .095 — What Your Trimmer’s Manual Allows
Setup Guide
How to Replace a CRAFTSMAN CMZST065 Spool (CMCST900 Trimmer)
Setup Guide
How to Wind a Trimmer Spool — Single-Line and Dual-Line (From the Manuals)
Setup Guide
How to Measure Your Old Spool to Find a Replacement
Setup Guide
How to Replace a BLACK+DECKER AF-100 Spool (Step by Step)
Setup Guide
How to Replace a RYOBI AC80RL3 / AC80RL1 Spool (Step by Step)
Setup Guide
How to Replace a Toro 88616 Pre-Wound Spool (51831 / 51831T Flex-Force 60V)
Step 2
Maintenance & Repair
Keep your trimmer running smoothly. Troubleshoot common problems.
Step 3
Buying Guides & Technical Info
Understand your equipment, compare options, and make informed decisions.
Need more help?
Check your equipment manufacturer's official support resources for model-specific manuals and warranty information.