Troubleshooting - Viking ME 339 Manuel D'utilisation

20. Troubleshooting

If necessary, contact a specialist
dealer; VIKING recommends VIKING
specialist dealers.
Fault:
Motor will not start
Possible cause:
– No mains voltage
– Connection cable, plug, plug connector
or switch defective
– Start button not pressed
– Motor is overloaded because the grass
is too tall or too wet
– Motor overload protection activated
– Mower housing is blocked
– Fuse in plug faulty (GB version)
Remedy:
– Check fuse ( 11.1)
– Check cable/plug/switch and replace if
necessary ( 11.1)
– Press start button ( 11.3)
– Do not start motor in high grass, adapt
cutting height ( 8.4)
– Allow machine to cool (
– Clean mower housing (
– Replace fuse in plug ( )
46
Fault:
Frequently tripped mains fuse
Possible cause:
– Unsuitable electric cable
– Power overload
– Machine is overloaded due to mowing
grass which is too long or too wet
Remedy:
– Use suitable electric cable (
– Connect machine to another circuit
– Adapt cutting height and mowing speed
to mowing conditions (
Fault:
Excessive vibration during operation
Possible cause:
– Blade fastening screw is loose
– Blade is not balanced
Remedy:
– Tighten blade fastening screw (
– Re-sharpen (balance) or replace blade
( 12.7)
Fault:
Poor cut, lawn turning yellow
9.5)
12.2)
Possible cause:
– mowing blade is blunt or worn,
– rate of feed is too high in relation to the
cutting height
Remedy:
– Re-sharpen or replace mowing blade
( 12.7)
– Reduce rate of feed and/or select
correct cutting height (
Fault:
Starting problems or deteriorating motor
power
Possible cause:
– Mowing grass which is too long or too
wet
– Mower housing is blocked
Remedy:
11.1) – Adapt cutting height and mowing speed
to mowing conditions (
– Clean mower housing (disconnect
8.4) mains plug before cleaning) (
Fault:
Ejection chute blocked
Possible cause:
– Mowing blade is worn
– Mowing grass which is too long or too
wet
12.6) Remedy:
– Replace mowing blade (
– Adapt cutting height and mowing speed
to mowing conditions (
8.4)
8.4)
12.2)
12.7)
8.4)
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