Bosch Professional GRA 53 Manual Original página 16

OBJ_DOKU-42365-002.fm Page 16 Monday, February 9, 2015 9:42 AM
16 | English
Product Transportation
 Ensure that isolator key is removed or in park position be-
fore transporting machine or folding handle. (The isolator
key isolates both land-drive and blade-drive motor).
Troubleshooting
S T OP
Problem Possible Cause
Battery discharged
Machine fails to op-
erate Batteries too hot/cold
Machine functions Internal wiring of machine damaged Contact Service Agent
intermittently
Motor protector has activated
External cabling damaged
Machine leaves rag- Height of cut too low
ged finish
Cutting blade blunt
and/or
Cutting blade obstructed
Motor labours
Blade fitted upside down
Motor starts and Batteries not fully charged
stops immediately
Isolator key not fully located
Batteries not fully inserted
Batteries too hot/cold
Poor cutting and Height of cut too low
collection perfor-
Grass too high
mance
Grass wet or damp
Grass is dense
Low battery capacity
Cutting bowl encrusted with mud
Cutting blade blunt
Grass catcher encrusted with mud
No collection
No collection
Poor collection
Cutting blade fails to Cutting blade obstructed
operate
Blade bolt loose
Low battery charge
Isolator key off
Poor battery contact
Grass too high
Batteries too hot/cold
Motor protector has activated
F 016 L70 940 | (9.2.15)
 Use the front and rear carrying handles for securing the
machine during transportation.
 Use suitable loading aids (loading ramps or lifters) to load
the product on and off the transport vehicle. The mower
must always be carried by two persons.
Corrective Action
Battery Charging
Allow to cool/warm
Allow motor/electronics to cool for 5 minutes and increase height of cut
Contact Service Agent
Increase height of cut and/or set land drive to a slower speed
Replace/re-sharpen blade
Check underneath the machine and clear out as necessary (always
wear protective gloves)
Re-fit blade correctly (see figure 11)
Check battery display – charge batteries if necessary
Check that the isolator switch is in the "1" position
Fully insert batteries
Allow batteries to warm up/cool down – check battery display
Increase height of cut and/or set land drive to a slower speed
Increase height of cut and/or set land drive to a slower speed
Wait until grass is dry or set land drive to a slower speed
Increase height of cut and/or set land drive to a slower speed or cut
grass more frequently
Ensure that batteries are fully charged before use
Clean inside of cutting bowl
Replace/re-sharpen blade
Clean inside of grass catcher
Make sure that the mulching plug is removed
Switch off product, remove isolator key and batteries. Check under-
neath the product and clear obstruction as necessary (always wear
protective gloves).
Check for correct blade
Cutting blade blunt
Tighten blade bolt
Recharge battery
Turn key to position 1
Remove battery and re-insert
Increase height of cut and/or set land drive to a slower speed. Tilting
the product backwards slightly to reduce starting load can also help.
Be aware that this may result in thrown debris
Allow batteries to warm up/cool down – check battery display
Allow motor/electronics to cool for 5 minutes and increase height of
cut
Bosch Power Tools