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0478 111 9931 B - EN
– Spark plug dirty
Remedy:
– Adapt cutting height and reduce
mowing speed
– Empty fuel tank, clean fuel line and
carburettor
#
– Clean fuel tank
#
– Clean/replace air filter
@
,
#
– Clean spark plug
#
Fault:
Engine overheating.
Possible cause:
– Oil level in engine too low.
– Cooling ribs dirty.
Remedy:
– Change engine oil. (
– Clean cooling ribs. (
Fault:
No drive when self-propulsion lever is
actuated.
Possible cause:
–
MB 655 YS:
Self-propulsion cable
incorrectly adjusted.
– Self-propulsion cable defective (e.g.
kinked).
– V-belt worn.
– Gearbox defective.
Remedy:
–
MB 655 YS:
Check cable adjustment.
– Replace cable.
#
– Replace V-belt.
#
– Replace gearbox.
#
Fault:
Speed control not functioning
Possible cause:
– Driving speed lever moved in wrong
direction.
– Cable disengaged or defective
(e.g. kinked).
Remedy:
– Move driving speed lever in the correct
direction. (
– Attach or replace cable.
#
Fault:
Mowing channel blocked.
Possible cause:
– Mowing blade is worn.
– Mowing grass which is too long or too
wet.
–
MB 650 VS, MB 655 VS, MB 655 YS:
Engine speed is too low.
Remedy:
– Replace mowing blade. (
– Adapt cutting height and mowing speed
–
MB 650 VS, MB 655 VS, MB 655 YS:
Set the throttle lever to the Start
position. (
Fault:
Poor cut, lawn turning yellow
Possible cause:
– Blade is blunt or worn.
– Mowing speed is too high in relation to
cutting height.
–
MB 650 VS, MB 655 VS, MB 655 YS:
Engine speed is too low.
Remedy:
#
– Reduce mowing speed and/or select
correct cutting height (do not work at
lowest cutting height). (
–
MB 650 VS, MB 655 VS, MB 655 YS:
Set throttle lever to Start position.
(
Fault:
Excessive vibration during operation
Possible cause:
– Blade fastening screw loose.
– Blade imbalance due to incorrect
sharpening or fracture.
– Cutting unit defective.
– Engine mounting loose.
Remedy:
– Tighten blade fastening screw. (
– Re-sharpen (balance) or replace blade.
#
– Check blade, blade shaft and blade
fastening and repair if necessary.
#
– Tighten engine mounting bolts.
#
Содержание MB 650 T
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