OHASHI ES72G Operation Manual page 44

TROUBLESHOOTING
FEED ROLLER CHECK
FEED ROLLER DOES NOT ROTATE.
A) When the feed roller does not rotate forward:
Check points
1) Engine power
2) Feed switch
3) Feed roller
4) Feed roller chain
5) Electric wiring
6) Fuse 7.5A
7) Safety bar
8) Safety bar release switch
B) Automatic control does not work
(The roller does not stop automatically and engine cuts out eventually)
Check points
1) Electric wiring
2) Fuse 7.5A
Causes
Too low. Throttle wire loose.
Defective
Clogging
Defective
Defective wiring
Defective
Engaged or broken
Defective
Causes
Defective wiring
Defective
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Solutions
Turn throttle to increase power & tighten throttle wire.
Replace it
Remove the clogged material.
Replace it
Re-wiring
Replace it
Disengage or repair
Replace it
Solutions
Re-wiring
Replace it