0478 192 9810 A - EN
50
– Mowing grass which is too long or too
wet.
Remedy:
– Empty fuel tank, clean fuel tank, fuel
line and carburettor. (
#
)
– Clean fuel tank. (
#
)
– Clean/replace air filter. (
@
)
– Clean spark plug. (
@
)
– Adapt cutting level and driving speed to
the mowing conditions.
Fault:
Engine overheating.
Possible cause:
– Dirty cooling ribs.
– Engine oil level too low.
– V-belt worn.
Remedy:
– Clean cooling ribs. (
@
)
– Check the engine oil level and top up
the engine oil if necessary. (
– Replace the V-belt. (
#
)
Fault:
Machine does not drive.
Possible cause:
– Gearbox disengaged.
– V-belt (gearbox) detached.
– V-belt (gearbox) worn or defective.
– Missing feather key between rear axle
and rear wheels.
Remedy:
– Engage the gearbox (freewheel lever).
– Fit V-belt (gearbox). (
#
)
– Replace V-belt (gearbox). (
#
)
– Install feather key. (
Fault:
Excessive vibration during operation.
Possible cause:
– The mowing blades are imbalanced
due to incorrect sharpening or damage.
– The blade fastening screws are not
securely tightened.
– The engine mounting is not securely
tightened.
– V-belt is damaged.
Remedy:
– Re-sharpen the mowing blade and
balance or replace the mowing blade.
(
– Tighten the blade fastening screws to
– Tighten the engine mounting. (
#
)
– Replace the V-belt. (
#
)
Fault:
Poor cut, lawn turns yellow after mowing.
Possible cause:
– Mowing blade blunt or worn.
– The driving speed is too fast in relation
to the mowing conditions (cutting level,
lawn condition).
– Maximum engine speed not set (throttle
lever not in MAX position)
– Mowing deck adjustment not OK.
– Mowing deck discharge opening
blocked.
– The mowing deck is soiled with grass
residues (deposits on inside of mowing
deck housing).
Remedy:
– Sharpen or replace the mowing blade
– Reduce the driving speed and select a
higher cutting level.
– Set the throttle lever to the MAX
position. (
– Check the mowing deck adjustment
and re-adjust the mowing deck if
necessary. (
– Remove grass residues from the
mowing deck discharge opening.
– Clean the inside of the mowing deck.
Fault:
Mowing deck discharge opening blocked.
Possible cause:
– Mowing blade wing worn or damaged.
– Mowing grass which is too long or too
wet.
– The driving speed is too high in relation
to the set cutting level.
– Maximum engine speed not set (throttle
lever not in MAX position)
– Wrong driving direction during mowing
operation.
Remedy:
– Mow the lawn in two stages: 1. Mowing
at the highest cutting level,
2. Mowing at the desired cutting level.
– Reduce the driving speed and select a
higher cutting level.
– Set the throttle lever to the MAX
position. (
– Select correct driving direction during
mowing operation.
Fault:
Machine does not eject clippings evenly.
Possible cause:
– Grass is too damp and therefore too
heavy.
– The driving speed is too fast in relation
to the mowing conditions (cutting level,
lawn condition).
– Grass is too high.
– Cutting level set too low.
– Mowing blades are blunt or worn.
Summary of Contents for RT 4097 S
Page 2: ...0478 192 9810 A D20 Eco DS 2020 02 2020 STIHL Tirol GmbH...
Page 3: ...1 0478 192 9810 A 1...
Page 4: ...0478 192 9810 A 2...
Page 8: ...0478 192 9810 A EN 6 3 Machine overview...
Page 58: ...0478 192 9810 A NO 56 3 Maskinbeskrivelse...
Page 104: ...0478 192 9810 A NO 102...
Page 108: ...0478 192 9810 A SV 106 3 Maskinbeskrivning...
Page 154: ...0478 192 9810 A SV 152...
Page 158: ...0478 192 9810 A FI 156 3 Laitekuvaus...
Page 204: ...0478 192 9810 A FI 202...
Page 208: ...0478 192 9810 A DA 206 3 Beskrivelse af maskinen...
Page 254: ...0478 192 9810 A DA 252...
Page 258: ...0478 192 9810 A PL 256 3 Opis urz dzenia...
Page 309: ...307 EN NO SV FI DA PL 0478 192 9810 A PL...
Page 310: ...0478 192 9810 A STIHL RT 4097 S RT 4097 SX RT 4112 S RT 4112 SZ A...