Bosch Rotak 320 - Manual (Page 16)

English - 5
The following table gives checks and actions that you can perform if your machine does not operate correctly.
If these do not identify/remedy the problem, contact your service agent.
Warning: Switch off and remove plug from mains before investigating fault.
Fault Finding
Symptom Possible Cause Remedy
Machine fails to operate Power turned off
Mains socket faulty
Extension cable damaged
Fuse faulty/blown
Mower in long grass
Motor protector has activated
Safety cut out has activated
Turn power on
Use another socket
Inspect cable, replace if damaged
Replace fuse
Increase height of cut and tilt mower
Allow to cool for a few minutes and in-
crease height of cut
At this time do not operate the switch
lever 1 as this will prolong the reset
time of the safety cut out
Machine functions
intermittently Extension cable damaged
Machines internal wiring damaged
Motor protector has activated
Safety cut out has activated
Inspect cable, replace if damaged
Contact Service Agent
Allow to cool for a few minutes and in-
crease height of cut
At this time do not operate the switch
lever 1 as this will prolong the reset
time of the safety cut out
Machine leaves ragged
finish
or
motor labours Height of cut too low
Cutting blade blunt
Underside of machine badly clogged
Blade fitted upside down
Increase height of cut (see “Height of
Cut Adjustment”)
Replace blade
(see “Blade Maintenance”)
Clean machine (see “After Mowing/
Storage”)
Refit blade correctly (see “Blade Main-
tenance”)
Cutting blade not rotating Cutting blade obstructed
Blade nut/bolt loose
Clear obstruction
Tighten blade nut/bolt
Excessive vibration/
noise Blade nut/bolt loose
Cutting blade damaged
Tighten blade nut/bolt
Replace blade.
F016 L70 451.book Seite 5 Mittwoch, 31. Januar 2007 9:38 09
16 • F016 L70 451 • 07.01