Specifications

3500D TROUBLESHOOTING GUIDE
28
COMPLAINT CAUSE CORRECTION
Engine will not start. (See Engine
Manufacturers’ Manual for further
information.)
• Loose ground wire.
• Loose hot wire.
• Dead battery.
• Clean and tighten.
• Clean and tighten.
• Recharge or replace.
Hydraulic system loss of power.
• Low oil.
• Valve set too low.
• Splined pump
coupling worn.
• Bad cylinder.
• Bad Pump.
• Refill with correct oil.
• Adjust relief valve.
• Remove pump coupler.
• Replace cylinder packing.
• Replace Pump.
Swing cylinder loss of power.
• Cutterhead speed
adjustment screw
turned wide open.
• Screw in speed
adjustment screw to close
bypass. Re-adjust for “no
bounce” cutting.
Belt Squeal.
• Belt tension too
loose.
• Belt out of alignment.
• Tighten.
• Align Pulleys.
Belt jumping off.
• Engaging or
disengaging belt at
high engine RPM.
• Belt keeper too far
from belt.
• Belt worn.
• Pulley worn.
• Only engage or disengage
belts at low engine
speeds.
• Adjust keeper closer to
belt.
• Replace belt.
• Replace pulley.
Cutter wheel vibration.
• Tooth missing.
• Pocket out of
balance.
• Improper tooth
arrangement.
• Replace missing teeth.
• Always replace pockets in
pairs across from each
other.
• Install correctly with like
pairs of teeth directly
across from each other.
Cutter wheel throwing teeth.
• Bad pocket.
• Dirt in pocket.
• Cutter wheel worn
where tooth sits.
• Replace pocket.
• Clean pocket and replace
missing teeth.
• Replace cutter wheel.
Cutter wheel breaking teeth.
• Teeth set too far out
of pocket.
• Use gauge to set teeth
correctly.