Troubleshooting
Before rectifying faults on the machine, it is vital that the drive is switched off and secured
to ensure that it cannot be switched on accidentally or started up by unauthorised persons.
Disconnect the machine from the mains.
▪ In addition, pull out the plug of the device.
▪ Disengage the universal joint shaft on the tractor.
– Before disengaging, turn the manual throttle to minimum.
▪ Shut down the tractor.
▪ Remove the universal joint shaft from the tractor.
Work on electrical equipment must only be carried out by qualified electricians.
Fault
Possible cause
Rectification
See page
Electric motor fails to
start or switches off
frequently
Faulty power supply
cable
Have the cable
examined by a
specialist
Fuses keep tripping -
incorrectly rated fuse for
power supply cable
Use correctly-rated
fuses
Motor circuit breaker
tripped
Use stronger power
supply cable
Direction of rotation
wrong
Swap over two phases
Switch does not work
Faulty power supply
cable
Have the cable
examined by a
specialist
Fuses keep tripping -
incorrectly rated fuse for
power supply cable
Use correctly-rated
fuses
Contactor or motor
circuit breaker faulty
Have switch checked or
send it in
Hydraulic oil getting too
hot
Not enough hydraulic oil
in hydraulic system
Check hydraulic oil level See [➙ 36]
Poor quality hydraulic
oil
Change hydraulic oil
Oil filter unclean or
blocked
Change filter insert
Machine loses power Hydraulic oil getting too
hot
See "Hydraulic oil
getting too hot"
Not enough hydraulic oil
in hydraulic system
Check hydraulic oil level See [➙ 43]
Sawing requires great
amount of power
Saw blade is blunt
Sharpening the saw
blade
Loose saw blade
Tighten the hexagon
nut on the drive shaft
Saw disc is coated in
resin
Clean saw blade with a
resin removing agent
Machine is noisy
PTO shaft running too
fast
Adhere to specified
speed
Machine is noisy
Oil filter unclean or
blocked
Change filter insert
Conveyor belt jerks or
does not move
Not enough hydraulic oil
in hydraulic system
Check hydraulic oil level See [➙ 36]
Poor quality hydraulic
oil
Change hydraulic oil
12
Troubleshooting
49