Spearhead Twiga 555, Handbook

Page: 59 / 63

Spearhead TWIGA
58
Trouble Shooting
Problem Cause Solution
Gearbox overheating Oil level incorrect Check oil level
Oil grade incorrect Check oil grade
Implement overloaded Reduce forward speed
Wrong PTO speed Ensure tractor PTO speed matches
implement
Excessive belt wear Belt and pulley condition Replace if necessary
Pulley alignment Check alignment
Incorrect belt tension Tension belts to spec
Overloading of implement Reduce forward speed or increase
height of cut
P.T.O.. wear UJ failure Working angle to great Reduce offset of implements
Shaft incorrect length I.e. bottoming
out Resize PTO shaft as recommended
Lack of maintenance Grease PTO shaft as recommended
Cut Quality Flails worn Replace worn flails
Rotor speed/direction Check tractor PTO speed
Crop condition Look for suitable conditions
Rotor bearing failure Rotor out of balance See rotor vibration
Wire/string in bearing Remove wire/string
Lack of maintenance Grease bearings to schedule
Water in bearing Expel water with grease
Rotor vibration Flails broken or missing Replace flails
Bearings worn or damaged Replace bearings
Rotor bend Re-balance/replace rotor
Build up of debris Remove debris
Incorrect speed Check rotor R.P.M.
Oil tank overheating Oil level incorrect Fill tank to correct level
Oil grade incorrect Drain and refill tank with correct grade
oil
PTO speed too fast Ensure the tractor's PTO speed
matches implement
Ambient temperature too high Reduce work rate / install oil cooler
Machine overloaded Reduce forward speed or increase
height of cut
Break-back operating
Frequently Machine overloaded Reduce forward speed or increase
height of cut
Machine being used on excessive
incline Switch off auto reset
Weight of machine being carried
upon rear roller Use Autopilot or head float
Machine not set vertical Shorten top link
Hydraulics not
responding Oil level low Fill oil to correct level
Oil pump suction filter blocked Replace filter element
Oil leak in pressure line Check machine of leaks
Drive line broken Check pump is rotating
Joystick control sluggish Air in pilot lines from joystick Slacken off each line of pilot circuit
individually at spool valve whilst
operating. When all air is expelled
retighten the line