Operation Manual
–
Spider 2SGS EFI
50 / 55
rev. 01-01-02-2021
Turning faults
Fault
Probable cause
Solution
The mower does not turn
Bad contact between the carbon and
the
commutator
of
the
turning
servomotor (servo reacts to tapping)
Clean the commutator and check the
carbon blocks
Disengaged power cable
Engage power cable
Broken steering servomotor
Replace
Exhausted battery
Check/recharge battery, check fuses
and cable connections to fuses
Control unit fault
Replace
Broken joystick in remote control
Replace
The mower turns around it's
vertical axis (crabbing)
Bad wheel geometry
Set wheel geometry right
Steering chain is loose
Tighten steering chain
Tyres aren't inflated correctly
Inflate tyres correctly
Usage of tyres with different wear
Use tyres with same wear (profile
depth)
Driving faults
Fault
Probable cause
Solution
Machine doesn't have power
when driving on slopes.
Not enough hydraulic oil in the oil tank
Replenish hydraulic oil
Worn mechanical parts of the hydraulic
system
Exchange worn parts
Loosened bypass bolt on hydraulic pump
Tighten bolt
Broken drive servomotor
Exchange servomotor
Machine
doesn't react
to the drive
servomotor
Pump ventilator
doesn't turn
Broken V-belt B 17x965
Replace V-belt
Pump ventilator
does turn
Snapped pin of arm on hydraulic pump
Replace pin
Servomotor isn't in neutral position/Broken
servomotor
Set neutral position/Replace
drive servomotor
Loosened bypass bolt on hydraulic pump
Tighten bolt
The machine accelerates,
decelerates on its own
Broken drive servomotor
Replace Drive servomotor
Broken Control unit
Replace unit
