Troubleshooting - Viking HB 445 Instruction Manual

19. Troubleshooting

If necessary, contact a specialist
dealer; VIKING recommends VIKING
specialist dealers.
@ See engine instruction manual.
Fault:
Engine does not start
Possible cause:
– Throttle lever in Stop position
– No fuel in tank; fuel line blocked
– Inferior, dirty or old fuel in tank
– Spark plug socket detached from spark
plug; ignition lead not properly fastened
to socket
– Spark plug dirty or damaged; incorrect
electrode gap
– Dirty air filter
– Engine is flooded due to several
starting attempts.
Remedy:
– Set throttle lever to Start position
( 11.6)
– Fill fuel tank ( 7.15);
Clean fuel lines ( )
– Use fresh, good quality fuel, unleaded
petrol ( 7.15);
clean carburettor ( )
– Connect spark plug socket (
check connection between ignition lead
and socket ( )
– Clean/replace spark plug (
Adjust electrode gap ( )
– Clean/replace air filter ( )
– Remove spark plug and dry, set throttle
lever to Stop position and pull recoil
starter rope repeatedly with the spark
plug removed ( )
44
Fault:
Starting problems or deteriorating engine
power
Possible cause:
– Water in fuel tank and carburettor;
carburettor blocked
– Contaminated fuel tank
– Dirty air filter
– Dirty spark plug
Remedy:
– Empty fuel tank, clean fuel line and
carburettor ( )
– Clean fuel tank ( )
– Clean/replace air filter (
– Clean/replace spark plug (
Fault:
Engine overheating
Possible cause:
– Dirty cooling ribs
– Oil level in engine too low
– Surface of engine covered with earth
Remedy:
– Clean cooling ribs (
– Top up engine oil (
– Remove earth from the engine
Fault:
Engine running roughly
);
Possible cause:
– Dirty air filter
Remedy:
), ( );
– Clean/replace air filter (
Fault:
Heavy smoke formation
Possible cause:
– Oil level is too high
– Dirty air filter
Remedy:
– Adapt oil quantity (
– Clean/replace air filter (
Fault:
Excessive vibration during operation
Possible cause:
), ( )
– Loose engine mounting
), ( )
Remedy:
– Tighten engine mounting bolts ( )
Fault:
Reduced tilling performance
Possible cause:
– Hoes incorrectly mounted
– Worn hoes
– Brake spur incorrectly adjusted
12.2)
Remedy:
7.15)
– Mount hoes correctly (
(
– Replace hoes ( )
– Adjust brake spur (
Fault:
No tilling performance
Possible cause:
), ( )
– No folding retainer in drive shaft
Remedy:
– Check attachment of hoes to drive shaft
(
)
), ( )
7.12),
7.13)
11.5)
7.12), ( 7.13)
0478 403 9800 H - EN