Troubleshooting - Stihl RT 5097.1 Manual De Instrucciones

23. Troubleshooting

If necessary, contact a specialist
dealer; STIHL recommends STIHL
specialist dealers.
@ See engine instruction manual.
Fault:
Starter turns, engine does not start.
Possible cause:
– Throttle lever set to MIN position.
– Choke position (throttle lever) not
selected or choke knob not actuated.
– No fuel in tank.
– Fuel cock closed.
– Insufficient flow of fuel.
– Spark plug dirty or damaged.
– Incorrect electrode gap.
– Spark plug socket detached from spark
plug.
– Engine flooded due to several starting
attempts.
– Clogged air filter.
– Battery almost discharged.
Remedy:
– Set the throttle lever to the MAX
position.
– Set the throttle lever to the choke
position ( 8.2) or actuate the choke
knob. ( 8.4)
– Top up the fuel.
– Open the fuel cock. ( 15.7)
– Check the fuel filter. (@)
– Clean or replace the spark plug. (@)
– Adjust the electrode gap. ( )
– Connect the spark plug socket; check
the connection between the ignition
lead and socket. ( )
0478 192 9813 C - EN
– Remove the spark plug and dry; set the
throttle lever to the MIN position and
start several times with the spark plug
removed; screw in the spark plug and
connect the spark plug socket. (@)
– Clean the air filter. (@)
– Check the charge state of the battery
and charge the battery if
necessary. ( 15.21)
Fault:
Starter not functioning.
Possible cause:
– The safety devices are blocking the
starter.
– Battery not or incorrectly connected.
– Battery completely discharged or not
sufficiently charged.
– Main fuse (150 A) defective.
– Faulty earth connection to engine or
chassis.
– Starter defective.
Remedy:
– Check all the safety devices. (
– Check battery connections. (
– Charge the battery. ( 15.21)
– Replace the main fuse. ( )
– Check the connection cables at the
battery and at the chassis. ( )
– Repair the starter. ( )
Fault:
Starting problems or deteriorating engine
power.
Possible cause:
– Water in fuel tank and carburettor;
carburettor is blocked.
– Contaminated fuel tank.
– The air filter is dirty.
– Dirty spark plug.
– 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. ( )
12.)
15.19)
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).
( 8.18)
– Fit V-belt (gearbox). ( )
– Replace V-belt (gearbox). ( )
– Install feather key. (
15.8)
15.15)
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