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13
FAULT LOCALISATION
Problem
Possible error
Possible solution
Motor runs with
Spark plug [*1]
Check distance or replace spark plug
the self-starter, but it
Wire damaged
Replace or repair wire
doesn’t start
Fuel filter clogged [*1]
Clean filter in carburettor
No fuel [p.26]
Refill fuel
Vacuum valve under fuel tank
Replace valve
Mower is in service position [p.14]
Put mower into working position
Defective NPN sensor [p.14]
Replace sensor
Distance too big for NPN sensor [p.14]
Adjust sensor – until diode is lit
Defective K2 relay [p.18]
Replace relay
Motor is not running
Battery discharged [p.25]
Charge the battery
from self-starter
No light in ECU lamp [*1]
Check 3 A fuse
Defective 30 A fuse
Replace 30 A fuse at rear of motor
Horn has not been activated [p.28]
Activate the horn
Defective 10A, 15 A, 3A fuses [p.18]
Replace the fuses
Motor is smoking
Air filter [p.24]
Clean / replace air filter
Mower will not start
Defective K3 relay [p.18]
Replace relay
Coupling defective
Replace coupling
Check wire and plug
Replace wire or plug
Defective drive belt for mower [p.39]
Replace belt
Defective drive belt for coupling [p.39]
Replace belt
Mower stops
Tilt sensor is active [p.35]
Move to a flatter area
Machine cannot run
Defective servomotor
Replace servomotor
Drive belt damaged [p.39]
Replace belt
Mower vibrates
Defective bearings
Replace bearings in mower
Dirt on flail bar
Clean flail bar
Flail missing [p.42]
Mount new flail
Worn flail [p.42]
Mount new flails
Machine has not enough
Damaged hydraulic pump
Replace pump
pulling power
Drive belt is slack [p.42]
Tighten belt
Hydraulic motor defective
Replace hydraulic motor
Oil is overheated [p.45]
Clean cooler, rear grate and guard grate
over the hydraulic pump
Not enough transmission oil [p.23]
Refill oil
No contact between
Machine outside operational range
Move remote control closer to receiver
remote control and
Disturbing radio signal [p.33]
Change frequency
receiver
Emergency stop of machine engaged
Disengage emergency stop
Defective 15A fuse [p.18]
Replace fuse
Emergency stop of remote control engaged
Disengage emergency stop
Machine makes noise
Defective flanged bearing by coupling
Replace bearing
Defective guard bearing
Replace bearing
Defective bearings in mower
Replace bearings
Poor mowing result
Worn flails [p.42]
Replace all flails
Driving speed too high
Lower the speed
Incorrect flail type [p.31]
Change flail type
Horn without function
Mower is in service position [p.14]
Put mower in working position
Defective 3A, 10A, 15A fuses [p.18]
Replace fuses
Horn automatically
Tilt sensor is activated [p.35]
Move to a flatter area
activated
Emergency stop of remote control activated,
emergency stop of machine not activated
Activate emergency stop of machine
[*1] See motor manual