VIKING GARDEN MT 4097 S, Instruction Manual

Page: 52 / 306

0478 192 9804 B - EN
50
– Connect spark plug socket; check
connection between ignition lead and
socket. (
#
)
– Remove spark plug and dry; set throttle
lever to MIN position and start several
times with spark plug removed; screw in
spark plug and connect spark plug
socket. (
@
)
– Clean the air filter. (
@
)
– Check charge state of the battery and
charge battery if necessary. ( Ö 14.19)
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. (
Ö
11.)
– Check battery connections. ( Ö 14.18)
– Charge the battery. ( Ö 14.19)
– 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. (
Ö
14.12)
– 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).
( Ö 8.14)
– Fit V-belt (gearbox). (
#
)
– Replace V-belt (gearbox). (
#
)
– Install feather key. ( Ö 14.10)
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.
(
Ö 14.6)
– Tighten the blade fastening screws to
the specified torque. ( Ö 14.6)
– 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
(observe wear limits). ( Ö 14.6)
– Reduce the driving speed and select a
higher cutting level.
– Set the throttle lever to the MAX
position. ( Ö 8.2)