TOMAHAWK FAULT FINDING CHART – PART 1
Symptom
Fault
Possible Solutions
High power
Consumption.
Bale fed too quickly into crossbeater.
Blades too aggressive.
Reduce bed chain speed.
Reduce aggression of bales.
Rotor won't
start
Bale jammed hard against crossbeater.
Reverse bed chain.
Material in rotor housing jamming Rotor
Reverse rotor to clear blockage.
Clutch setting too low
Check setting and adjust
Bed chain no
longer
operates or
only very
slowly. Failure
may be
sudden or
intermittent.
Hydraulic valve problem.
See section below.
Tractor hydraulic oil pressure low.
Check pressure delivered by tractor.
Relief valve setting too low.
Adjust relief valve or replace if spring worn.
Material jammed between bed chain and
bodywork.
Clear material and check bed chain tension.
Bed chain has come off the sprockets.
Check sprocket condition, replace the bed chain and
tension it.
Bed chain broken.
Check sprocket groove is clean and that the
chamber below the floor is free from obstructions.
Repair chain and refit.
Motor not turning.
Check connections and tractor hydraulics. If motor is
seized reverse flow to release. Consult your dealer if
this fails.
Sprockets seized.
Replace bearings.
Dirt or contamination in the Bypass/Relief
Valve in the flow control slice.
Firstly, remove the Bypass/Relief Valve from the
Flow Control Slice inspect for contamination. If
problem persists or re occurs regularly replace
tractor hydraulic oil with new clean oil.
Fit Inline Filter Kit.
Slow
discharge
Bed Chain speed too slow.
Increase forward speed of bed chain using flow
control valve.
Bed Chain speed too slow.
Insufficient oil flow from tractor. Check oil level on
tractor or adjust flow rate. Consult dealer if hydraulic
flow cannot be controlled using tractor valve. See
handbook for recommended speeds.
Material jammed hard against bale
restraint above crossbeater.
Reverse bed chain direction for at least 5 seconds
until feed is restored.
Blades blunt or worn.
Sharpen, reverse or replace blades.
Rotor speed low.
Check that slip clutch is not slipping - indicated by
hot clutch assembly.
Rotor speed low.
Check tractor tachometer.
Bale stops
discharging
Crossbeater not rotating.
Replace shear bolt in drive sprocket.
Gearbox in neutral.
Remove material from rotor housing before
restarting and select correct gear.
Bed Chain not rotating.
See above.
Scraper has jammed sprocket.
Replace scraper.
12
Summary of Contents for Tomahawk 8500
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