25
TOMAHAWK FAULT FINDING CHART – PART 2
Symptom
Fault
Possible Solutions
Shear bolt fails
repeatedly.
One or more bale restraint fingers bent
and interfering with crossbeater(s).
Straighten or replace damaged bale restraint
finger.
Tailgate raised too high forcing bale into
crossbeater(s).
Lower to tailgate allow material in bale
chamber to rotate freely.
Bolt bushes worn or damaged.
Replace with new bushes.
Drive chain worn.
Replace drive chain.
Front half of large rectangular bale not
rotating freely.
Lower the tailgate to allow material in bale
chamber to rotate freely and increase the bed
chain speed to encourage rotation of the front
half of bale.
Blades too aggressive.
Reduce aggression of blades by sloping
backwards.
Control desk not
Working.
Polarity on supply cable to control desk
incorrect.
Reverse connections in supply cable
connection.
Bluetooth connection has not completed
and the LED is still flashing preventing
the control desk from turning on.
Should the control desk fail to connect to the
machine unit press the “ON” and “OFF” buttons
together for 2 seconds.
Damage to electronic circuit.
Contact Teagle Machinery Ltd.
Chute and rotor blocks. Chute exit blocked.
Incorrect discharge rotor speed selected on
gearbox, check high rotor speed is selected.
Make sure material can leave the chute freely.
Material not flowing smoothly.
Raise chute deflector to improve flow and rotate
chute to achieve desired delivery position.
Rotor speed low.
Check that slip clutch is not slipping (indicated by
hot clutch assembly).
Also increase engine speed.
Hydraulic valve fails to
operate.
No oil flow from tractor.
Check that oil is flowing and that hoses are
correctly connected to the tractor spool valve.
Hydraulic connections to tractor faulty or
not connected.
Rectify making sure pressure is applied to the
valve via the supply hose and that the return line
flow is not restricted.
Dirt or contamination in the proportional
flow slice or relief valve controlling the
bed chain speed.
Remove the proportional cartridge and relief
valve from the flow control slice inspect for
contamination clean and replace. If problem
persists or reoccurs regularly, replace tractor
hydraulic oil with new clean oil.
Fit inline filter kit.
Loss of operation of
rams and swivel slices.
Also operation of bed
in only one direction
may occur. Failure
may be sudden or
deteriorate slowly over
a few days.
Oil flow to valve low.
Oil leaking from between slices of the
valve.
Internal failure in valve.
Pilot cartridge contaminated.
Pilot manifold orifice blocked.
Check oil flow exceeds 35 litres per minute, if
less than 60 lpm available calibrate control desk
to reduce maximum bed chain speed.
See next section.
Contact Teagle Machinery Ltd for advice.
Replace cartridge.
Clean manifold.
