Stihl RT 4097 SX - System Fault Diagnosis; Service Schedule and Records

ENNO
51
SVFIDAPL
0478 192 9810 A - EN
– Wings of mowing blades damaged.
– Wrong driving direction during mowing
operation.
– Mowing deck (inside) soiled through
deposited grass residues (residue from
last mowing operation).
Remedy:
– Wait until the lawn is dry.
– Reduce the driving speed and select a
higher cutting level. (Ö 12.6)(Ö 12.4)
– Mow the lawn in two stages: 1. Mowing
at the highest cutting level.
2. Mowing at the desired cutting level.
– Select a higher cutting level. (Ö 12.6)
– Sharpen or replace the mowing blade.
(Ö 14.6)
– Replace the mowing blade.
– Select correct driving direction during
mowing operation. (Ö 8.7)
– Clean inside of mowing deck. (Ö 14.2)
Fault:
Mowing blades do not switch on / do not
rotate.
Possible cause:
– The safety devices are preventing
activation of the mowing blades.
– V-belt (mowing deck) worn, detached or
defective.
Remedy:
– Check whether all the safety
requirements for activation of the
mowing blades are met. (Ö 11.)
– Check V-belt (mowing deck) and
replace if necessary. (#)
Fault:
Engine cuts out when mowing deck is
activated.
Possible cause:
– User not sitting or not properly
positioned on driver's seat.
– Seat switch or wiring is defective.
Remedy:
– Sit on the driver's seat or change seat
position.
– Repair/replace seat switch or wiring.
(#)
Fault:
Mowing deck disengaged when mowing in
reverse driving direction.
Possible cause:
– Reverse mowing safety switch not
pressed.
Remedy:
– Release the mowing blades within the
time window (5 seconds before to
1 second after engaging the mowing
deck or changing the driving direction).
(Ö 8.6)
Fault:
Engine cuts out when user leaves driver's
seat.
Possible cause:
– Parking brake not engaged.
– Mowing deck engaged (safety device).
Remedy:
– Engage the parking brake before
leaving the driver's seat. (Ö 8.12)
– Disengage the mowing deck before
leaving the driver's seat. (Ö 8.5)
Fault:
Three acoustic signals sound in quick
succession.
Possible cause:
– Fault in seat switch or electrics (short
circuit).
Remedy:
– Turn ignition key to "engine off"
position, carry out self-diagnosis.
(Ö 9.1)
23.1 Handover confirmation
23. Service schedule