Fault Finding - Bosch Rotak 37 LI Operating Instructions Manual

F016 L70 447 - GB Seite 9 Freitag, 8. Dezember 2006 4:58 16

Fault Finding

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 the isolator key before investigating fault.
Symptom
Machine fails to operate
Machine starts and stops
immediately
Machine functions
intermittently
Machine leaves ragged fin-
ish
or
motor labours
Area of cut (battery dura-
tion) not large enough
Cutting blade not rotating
while machine switched on
Excessive
vibration/noise
No charging procedure
possible due to defective
battery
The charge control
LEDs 19 and 18 respec-
tively, do not light up after
inserting the mains plug
into the socket.
25 • F016 L70 447 • TMS • 07.12.06
Possible Cause
Underside of machine badly clogged
Battery not charged
Battery not fitted correctly
Fuse faulty/blown in isolator key
Mower in long grass
Protector has activated
Battery too hot/cold
Isolator key has not been inserted cor-
rectly/ fully
There is a short delay in the motor start-
ing after engaging the switch lever.
Battery not fully charged
Isolator not fully in
Battery not fully in
Battery too hot/cold
Machines internal wiring damaged
Protector has activated
Height of cut too low
Cutting blade blunt
Underside of machine badly clogged
Blade fitted upside down
Cutting height set too low
Grass too long
Grass wet or damp
Grass is dense
An additional battery can be purchased
from an authorised customer service
agent for Bosch garden products
Cutting blade obstructed
Blade nut/bolt loose
Blade nut/bolt loose
Cutting blade damaged
The contacts of the battery are contami-
nated
The battery is defective, due to a discon-
nection in the battery (individual cells)
The charger plug is not inserted (prop-
erly)
Socket, cable or charger are defective
English - 9
Remedy
Clean machine (see "After Mowing/Stor-
age")
Charge battery
Fit battery correctly
Contact Service Agent
Increase height of cut and tilt mower
Allow to cool and increase height of cut
Allow to cool/warm
Fit correctly
Hold switch lever for 1 - 3 seconds to
start motor.
Charge Battery
Fit correctly
Fit correctly
Allow to cool/warm and increase height
of cut
Contact Service Agent
Allow to cool and increase height of cut
Increase height of cut (see "Height of
Cut Adjustment")
Replace blade (see "Blade Mainte-
nance")
Clean machine (see "After Mowing/Stor-
age")
Refit blade correctly (see "Blade Mainte-
nance")
Increase height of cut
Increase height of cut
Wait until grass is dry
Raise height of cut and walk slower, and
cut more frequently
Contact service agent
Clear obstruction
Tighten blade nut/bolt
Tighten blade nut/bolt
Replace blade.
Clean the contacts (e. g. by inserting and
removing the battery several times) or re-
place the battery, as required
Replace the battery
Insert the plug (fully) into the socket
Use another socket and if necessary,
have the battery charger checked by an
authorized after-sales service agent for
Bosch power tools.