Viking GB 460 Manuel D'utilisation page 76

Fault:
Engine overheating
Possible cause:
– Dirty cooling ribs
– Oil level in engine too low
– Surface of engine covered with
shredded material
Remedy:
– Clean cooling ribs ( 12.1)
– Top up engine oil ( 7.8)
– Remove shredded material from the
engine
Fault:
Excessive vibration during operation
Possible cause:
– Faulty blade disc or blades
– Loose engine mounting
Remedy:
– Check blade discs, blades, blade shaft,
screws, nuts, washers and bearings of
cutting unit, repair if necessary
– Tighten engine mounting bolts
Fault:
Starting problems or deteriorating engine
power
Possible cause:
– Shredding material in the housing
– Water in fuel tank and carburettor;
carburettor blocked
– Contaminated fuel tank
– Dirty air filter
– Dirty spark plug
Remedy:
– Remove shredder deposits from the
housing (detach spark plug socket)
( 12.1)
– Empty fuel tank, clean fuel line and
carburettor
74
– Clean fuel tank
– Clean air filter
– Clean spark plug
Fault:
Reduced shredding performance
Possible cause:
– Blunt blades
– Incorrectly ground blades
– Bent blade disc
Remedy:
– Re-sharpen or replace blades (
– Sharpen blades correctly (
– Visually inspect blade disc and replace
if necessary ( 12.3)
Fault:
Shredding material is not drawn in
Possible cause:
– Blunt or incorrectly ground blades
– Gap between the two blades (hard
material blade disc)
– Blade cover not removed
Remedy:
– Regrind blade and ensure sharpening
angle is exactly correct
– Install blades onto the hard material
blade disc without a gap (
– Remove blade cover (
21. Service schedule
21.1 Handover confirmation
12.8)
12.8)
21.2 Service confirmation
Please hand this instruction manual
( 12.8)
to your VIKING specialist dealer in
the case of maintenance work.
12.7)
He will confirm the service operations
7.3)
performed in the pre-printed boxes.
Service performed on
Next service date
33
0478 216 9905 A - EN