To avoid accidents, always disconnect the battery pack from tool before ser-
vicing or cleaning.
Service
NO
PARTS INSIDE. Preventive
maintenance performed by un au thorized per-
sonnel may result in misplacing of internal
wires and components which could cause seri-
ous hazard. We recom mend that all tool service
be performed by a Bosch Factory Service Center
or Authorized Bosch Service Station. SERVICE
MEN: Disconnect tool and/or charger from pow-
er source before servicing.
Batteries
Be alert for battery packs that are nearing their
end of life. If you notice decreased tool perfor-
mance or significantly shorter running time be-
tween charges then it is time to replace the bat-
tery pack. Failure to do so can cause the tool to
operate improperly or damage the charger.
Tool Lubrication
Your Bosch tool has been properly lubricated
and is ready for use.
Motors
The motor in your tool has been engineered for
many hours of dependable service. To maintain
Do not use attachments / accessories other than those specified by Bosch.
Use of attachments/accessories not specified for use with the tool de-
scribed in this manual may result in damage to the tool, property damage, and or personal
injury.
Store accessories in a dry and temperate environment to avoid corrosion and deterioration.
Standard Equipment
– 360 Auxiliary Handle
– Depth Gauge
160992A8B9 GBH18V-28C 20230316.indd 23
page heading
Maintenance
USER
SERVICEABLE
Accessories
Accessories / Attachments (sold separately)
– Dust Attachments (see Boschtools.com for
available dust collection attachments for
hammers and hammer drills).
– 3-Jaw Chuck
-23-
peak efficiency of the motor, we recommend it
be examined every six months. Only a genuine
Bosch replacement motor specially designed for
your tool should be used.
Replacing the Built-in Coin
Cell Battery
The coin cell battery must
always be replaced with a
coin cell battery of the same type. Using differ-
ent coin cell battery may cause tool and prop-
erty damage and injury.
You will be notified via the Bosch Toolbox app
if the coin cell is too weak or if it is drained.
The coin cell replacement must be performed by
Bosch or by an after-sales service centre autho-
rised to work with Bosch power tools.
Cleaning
Certain cleaning agents and
solvents
parts. Some of these are: gasoline, carbon tetra-
chloride, chlorinated cleaning solvents, ammo-
nia and household detergents that contain am-
monia.
Ventilation openings and switch levers must be
kept clean and free of foreign matter. Do not
attempt to clean by inserting pointed objects
through opening.
damage
plastic
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