Possible Cause - Viking MA 339 Gebrauchsanleitung

– Replace safety plug ( )
Fault:
Motor stops during operation

Possible cause:

– Battery or machine electronics
overheated
– 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 ( 8.4)
– Insert safety plug ( 9.1)
– 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
( 13.8)
Fault:
Poor cut, lawn turning yellow
Possible cause:
– Mowing blade is blunt or worn,
52
– Rate of feed is too high in relation to the
cutting height
Remedy:
– Re-sharpen or replace mowing blade
( 13.8)
– Reduce rate of feed and/or select
correct cutting height (
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
8.3) – Mowing blades are blunt or worn
Remedy:
8.3)
– Charge battery (
– Adapt cutting height and mowing speed
to mowing conditions (
– Clean mower housing (
9.5)
– 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
– Mower housing is blocked
– Mowing blades are blunt or worn
– Battery has reached or exceeded the
9.5) Remedy:
– Charge battery (
– Adapt cutting height and mowing speed
– Clean mower housing (
– Re-sharpen or replace mowing blade
– Check battery, replace if necessary ( )
Fault:
Battery is not charged despite illuminated
green LED on charger
Possible cause:
8.4)
– Battery too cold or too warm (one red
9.5)
13.2) Remedy:
– Warm up battery or allow to cool
Fault:
Battery is not charged, no LED illuminates
Possible cause:
– No electrical contact between charger
– Charger power supply faulty
13.8)
Remedy:
9.5) – Remove battery from battery
– Connect charger to the mains (
– Check mains power supply
– Check charger, replace if necessary
wet
end of its service life
8.4)
to mowing conditions ( 9.5)
13.2)
( 13.8)
LED illuminates on battery)
( 8.4). Store the charger in a closed
and dry place at a temperature of
between +5°C and +40°C only.
and battery
compartment and reinsert (
( )
0478 131 9926 B - EN
8.3)
8.2)