Selecting Drill Chucks And Tools; Auxiliary Handle - Bosch GBH 18V-26 Professional Manual Original

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5 | English
Removing the battery
The battery 11 is equipped with two locking levels that should
prevent the battery from falling out when pushing the battery
unlocking button 18 unintentionally. As long as the battery is
inserted in the power tool, it is held in position by means of a
spring.
To remove the battery 11:
– Push the battery against the base of the power tool (1.)
and at the same time press the battery unlocking button 18
(2.).
– Pull the battery off the power tool (3.).
Battery Charge-control Indication (see figure B)
The three green LEDs of the battery charge-control indicator
21 indicate the charge condition of the battery 11.
The charge condition can be checked only when the battery is
removed.
– Press button 20 to display the charge condition. The
charge-control indicator will extinguish automatically after
approx. 5 seconds.
LED
Continuous lighting 3 x green
Continuous lighting 2 x green
Continuous lighting 1 x green
Flashing light 1 x green
When no LED lights up after pushing button 20, then the bat-
tery is defective and must be replaced.
During the charging procedure, the three green LEDs light up
one after the other and briefly go out. The battery is fully
charged when the three green LEDs light up continuously. The
three LEDs go out again approx. 5 minutes after the battery
has been fully charged.

Auxiliary Handle

 Operate your machine only with the auxiliary handle
16.
Changing the position of the auxiliary handle
(see figure C)
The auxiliary handle 16 can be set to any position for a secure
and low-fatigue working posture.
– Turn the bottom part of the auxiliary handle 16 in counter-
clockwise direction and swivel the auxiliary handle 16 to
the desired position. Then retighten the bottom part of the
auxiliary handle 16 by turning in clockwise direction.
Pay attention that the clamping band of the auxiliary handle is
positioned in the groove on the housing as intended for.
1 609 92A 3YU | (2.8.17)

Selecting Drill Chucks and Tools

For hammer drilling and chiselling, SDS-plus tools are re-
quired that are inserted in the SDS-plus drill chuck.
For drilling without impact in wood, metal, ceramic and plas-
tic as well as for screwdriving, tools without SDS-plus are
used (e.g., drill bits with cylindrical shank). For these tools, a
keyless chuck or a key type drill chuck are required.
Inserting/Removing the Key Type Drill Chuck
(GBH 18V-26)
To work with tools without SDS-plus (e.g., drills with cylindri-
cal shank), a suitable drill chuck must be mounted (key type
drill chuck or keyless chuck, accessories).
Mounting the Key Type Drill Chuck (see figure E)
– Screw the SDS-plus adapter shank 25 into a key type drill
chuck 24. Secure the key type drill chuck 24 with the se-
curing screw 23. Please observe that the securing
screw has a left-hand thread.
Inserting the Key Type Drill Chuck (see figure E)
– Clean the shank end of the adapter shank and apply a light
coat of grease.
– Insert the key type drill chuck with the adapter shank into
the tool holder with a turning motion until it automatically
locks.
– Check the locking effect by pulling the key type drill chuck.
Removing the Key Type Drill Chuck
– Push the locking sleeve 5 toward the rear and pull out the
key type drill chuck 24.
Capacity
Removing/Inserting the Quick Change Chuck
≥2/3
(GBH 18V-26 F)
≥1/3
The SDS-plus quick change chuck 2 can easily be replaced
<1/3
against the quick change keyless chuck 1 provided.
Reserve
Removing the Quick Change Chuck (see figure F)
– Pull the lock ring for the quick change chuck 6 toward the
rear, hold it in this position and pull off the SDS-plus quick
change chuck 2 or the quick change keyless chuck 1 to-
ward the front.
– After removing, protect the replacement chuck against
contamination.
Inserting the Quick Change Chuck (see figure G)
 Use only model-specific original equipment and pay at-
tention to the number of identification grooves 27. On-
ly quick-change chucks with two or three identification
grooves are permitted. When an unsuitable quick-change
chuck is used, the application tool could fall out during op-
eration.
– Before inserting, clean the quick change chuck and apply a
light coat of grease to the shank end.
– Grasp the SDS-plus quick change chuck 2 or the quick
change keyless chuck 1 completely with your hand. Slide
the quick change chuck with a turning motion onto the drill
chuck mounting 26 until a distinct latching noise is heard.
– The quick change chuck is automatically locked. Check the
locking effect by pulling the quick change chuck.
Bosch Power Tools