13SGH-16SGB OWNER’S MANUAL 8/29/18 Page 10 of 11
ELECTRICAL SCHEMATIC- HONDA GX390
STUMP GRINDER TROUBLESHOOTING GUIDE
CAUTION!! Always use extreme care when troubleshooting or making adjustments on stump
grinder. Stay clear of cutter wheel when engine is running. Stop engine before disassembling any
component.
Cutter Wheel Problem
1. Slow cutter wheel speed Check and adjust belts tension
2. Rough cutting or bouncing Check teeth for wear, rotate or replace as needed
Brake System Problems
1. Tire loose when brake engaged Check and adjust brake cable as needed
To Next Page
