FORST ST6P - The Woodchipper Suddenly Stops Running; The Woodchipper Is Struggling to Chip Wood

Redwood Global Ltd - ST6P
Operator and Maintenance Manual
Chapter 6: Troubleshooting
6.5 THE WOODCHIPPER SUDDENLY STOPS RUNNING
Possible cause Check Corrective action
Loss of oil pressure Check oil level Top up if required
Check oil pressure switch Replace if damaged or faulty
Overheated Check cooling fan and belt Replace if damaged
Check fan guard for blockages Clear blockages
Flywheel seized Check flywheel and chamber for
blockages
Clear blockages
Bonnet catches Check condition and security Refit or replace
Bonnet sensor Check condition Replace if damaged
Check if Bonnet is lit up on P2
when the bonnet is down
Replace sensor or tighten
connector plug
Check sensor gap Adjust to approx. 3 to 4mm
Fuel not flowing Check fuel level Top up if empty
Check fuel tank for debris Remove any debris
Check in-line fuel filter for debris Replace filter
Check fuel lines for damage or
kinks
Replace or remove kinks
Check banjo bolt for blockage Clear blockage
Check fuel cap vent Clean vent or replace cap
Electrical issue

Check battery and connections Replace, charge or tighten
Check ignition switch Refit plug
Check wiring and connections Replace, tighten or refit
Check fuses Replace if blown
6.6 THE WOODCHIPPER IS STRUGGLING TO CHIP WOOD
Possible cause Check Corrective action
Lack of fuel Check fuel system Clean or refill fuel system as
required
Lack of air Check air filter Clean or replace as required
Poor quality fuel Check fuel Drain and refill fuel system with
a better quality fuel
No stress occurring too soon Check main belts Tension correctly
► For more information, refer
to "Adjusting the main belt
tension" on page 92
Low RPM Check throttle Adjust as required
Blade condition Check blade sharpness Replace if dull
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