ORBITAL
50
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 U.J. 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