Viking MA 443 Manuel D'utilisation page 54

Fault:
Motor does not start
Possible cause:
– Battery not fully charged (one green
LED flashes on battery)
– Battery incorrectly inserted
– Safety plug is not inserted
– ON button not pressed
– Motor is overloaded because the grass
is too tall or too wet
– Motor overload protection activated
– Battery too cold or too warm (one red
LED illuminates on battery)
– Lawn mower too warm (three red LEDs
illuminate on battery)
– Humidity in machine and/or battery
– Mower housing is blocked
– Fuse in safety plug defective
– Machine defective (three red LEDs
flash on battery)
Remedy:
– Charge battery ( 8.4)
– Insert battery into battery compartment
( 8.3)
– Insert safety plug ( 9.1)
– Press the ON button (
– Do not switch on motor in high grass,
adapt cutting height (
– Allow machine to cool down (
– Warm up battery or allow to cool down
( 8.4)
– Remove battery from battery
compartment and dry; clean/dry battery
compartment ( 8.3)
– Clean mower housing (
– Replace safety plug ( )
Fault:
Motor stops during operation
Possible cause:
– Battery or machine electronics
overheated
52
– Electrical fault
– Battery not fully charged
– Safety plug incorrectly inserted
– Machine overloaded due to mowing
grass which is too long or too wet
– Lawn mower fault
Remedy:
– Remove battery from battery
compartment; allow lawn mower and
battery to cool down (
– Remove battery from battery
compartment and reinsert (
– Charge battery (
– Insert safety plug (
– Adapt cutting height and mowing speed
to mowing conditions (
– Repair lawn mower ( )
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
12.2)
(
9.6)
10.5)
Fault:
Poor cut, lawn turning yellow
Possible cause:
– Mowing blade is blunt or worn,
– Rate of feed is too high in relation to the
13.2)
cutting height
Remedy:
– Re-sharpen or replace mowing blade
(
– Reduce rate of feed and/or select
correct cutting height (
8.3)
8.4)
9.1)
9.6)
13.8)
13.8)
9.6)
Fault:
Problems switching machine on or
deteriorating motor power.
Possible cause:
– Battery discharged
– Mowing grass which is too long or too
wet
– Mower housing is blocked
– Mowing blades are blunt or worn
Remedy:
8.3)
– Charge battery (
– Adapt cutting height and mowing speed
to mowing conditions (
– Clean mower housing (
– Re-sharpen or replace mowing blade
( 13.8)
Fault:
Discharge chute blocked
Possible cause:
– Mowing blade is worn
– Mowing grass which is too long or too
wet
13.7)
Remedy:
– Replace mowing blade (
– Adapt cutting height and mowing speed
to mowing conditions (
Fault:
Operating time too short
Possible cause:
– Battery not fully charged
– Mowing grass which is too long or too
wet
– Mower housing is blocked
– Mowing blades are blunt or worn
– Battery has reached or exceeded the
end of its service life
Remedy:
– Charge battery (
8.4)
9.6)
13.2)
13.8)
9.6)
8.4)
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