Bosch UniversalRotak 36-550 Manual Original página 21

Troubleshooting
Problem Possible Cause
Motor refuses to start Internal wiring of garden tool defective
Battery discharged
Battery too hot/cold
Grass too long
Motor protector has activated
Isolator switch not inserted correctly/fully
Garden tool functions Internal wiring of garden tool defective
intermittently
Motor protector has activated
Machine leaves ragged Height of cut too low
finish
Cutting blade blunt
and/or
Possible clogging
Motor labours
Blade fitted upside down
Blade not rotating Cutting blade obstructed
while garden product
switched on
Blade nut/bolt loose
Excessive vibrations/ Blade nut/bolt loose
noise
Cutting blade damaged
Battery and charger
Problem Possible Cause
Red battery charge in- Battery not (properly) inserted
dicator on charger
Battery contacts contaminated
flashes
No charging procedure
possible
Battery defective
Battery charge indic- Mains plug of battery charger not plugged in
ator on charger does (properly)
not light up
Socket outlet, mains cable or battery charger de-
fective
Maintenance and Service
Battery Maintenance
Warning! Switch off, remove the isolator switch, bat-
u
tery and grass bag before adjusting or cleaning.
Always wear gardening gloves when handling or work-
u
ing near the sharp blades.
Bosch Power Tools
Corrective Action
Contact Bosch customer service agent
Recharge battery
Allow to cool/warm
Max. allowed grass height 30cm on highest
height-of-cut setting
Allow motor to cool and increase height of cut
Fit correctly
Contact Bosch customer service agent
Allow motor to cool and increase height of cut
Increase height of cut
Replace cutting blade (see figure J)
Switch garden tool off and disengage isolator
switch
Check underneath the garden product and clear
out as necessary (always wear protective gloves)
Refit blade correctly
Switch garden tool off and disengage isolator
switch
Clear obstruction (always wear protective gloves)
Tighten blade nut/bolt (27 Nm)
Tighten blade nut/bolt (27 Nm)
Replace cutting blade (see figure J)
Corrective Action
Properly insert battery in charger
Clean the battery contacts (e. g. by inserting and
removing the battery several times) or replace
the battery
Replace the battery
Insert mains plug (fully) into the socket outlet
Check the mains voltage; have the battery char-
ger checked by an authorised after-sales service
agent for Bosch power tools
Use the following procedures to enable optimum usage of
the battery:
– Protect the battery against moisture and water.
– Store the machine and battery only within a temperature
range between –20 °C and 50 °C . As an example, do not
leave the battery in the car in summer.
English | 21
1 609 92A 5BP | (14.10.2019)