Method Of Operation; Starting Operation; Working Advice - Bosch Professional GDR 18 V-160 Manual Original

 Do not continue to press the On/Off switch after the
machine has been automatically switched off. The bat-
tery can be damaged.
Observe the notes for disposal.
Removing the battery
The battery 3 is equipped with two locking levels that should
prevent the battery from falling out when pushing the battery
unlocking button 4 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 3, press the unlocking button 4 and
pull out the battery toward the front. Do not exert any force.
Changing the Tool (see figures A and B)
 Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
 Regularly clean the power tool's air vents. The motor's
fan will draw the dust inside the housing and excessive ac-
cumulation of powdered metal may cause electrical haz-
ards.
 When working with an application tool, pay attention
that the application tool is connected securely on the
tool holder. When the application tool is not securely con-
nected with the tool holder, it can come off during applica-
tion.
Inserting
GDR 18 V-160:
Pull the locking sleeve 2 forward, push the insert tool to the
stop into the tool holder 1 and release the locking sleeve 2 to
lock the insert tool.
Use only screwdriver bits with ball catch 9 (DIN 3126-E6.3).
Other screwdriver bits 11 can be used with a universal bit
holder with ball catch 10.
GDX 18 V-180:
Slide the application tool 12 onto the square drive of the tool
holder 1.
With this system, there will be a slight amount of play around
the application tool 12 after connecting securely to the tool
holder 1; this has no influence on the function/safety.
Removing
Pull the locking sleeve 2 forward and remove the insert tool.
Bosch Power Tools
Operation

Method of Operation

The tool holder 1 with the tool is driven by an electric motor
via a gear and impact mechanism.
The working procedure is divided into two phases:
Screwing in and tightening (impact mechanism in action).
The impact mechanism is activated as soon as the screwed
connection runs tight and thus load is put on the motor. In this
instance, the impact mechanism converts the power of the
motor to steady rotary impacts. When loosening screws or
nuts, the process is reversed.

Starting Operation

Inserting the battery
Set the rotational direction switch 5 to the centre position to
protect the power tool against accidental starting.
Insert the charged battery 3 from the front into the base of the
power tool until the battery is securely locked.
Reversing the rotational direction (see figure C)
The rotational direction switch 5 is used to reverse the rota-
tional direction of the machine. However, this is not possible
with the On/Off switch 6 actuated.
Right rotation: For driving in screws and tightening nuts,
press the rotational direction switch 5 through to the left
stop.
Left Rotation: For loosening and unscrewing screws and
nuts, press the rotational direction switch 5 through to the
right stop.
Switching On and Off
To start the machine, press the On/Off switch 6 and keep it
pressed.
The power light 7 lights up when the On/Off switch 6 is slightly
or completely pressed, and allows the work area to be illumi-
nated when lighting conditions are insufficient.
To switch off the machine, release the On/Off switch 6.
To save energy, only switch the power tool on when using it.
Adjusting the Speed
The speed of the switched-on power tool can be variably ad-
justed, depending on how far the On/Off switch 6 is pressed.
Light pressure on the On/Off switch 6 results in a low rotation-
al speed. Further pressure on the switch results in an increase
in speed.

Working Advice

 Apply the power tool to the screw/nut only when it is
switched off. Rotating tool inserts can slip off.
The torque depends on the impact duration. The maximum
achieved torque results from the sum of all individual torques
achieved through impact. The maximum torque is achieved
after an impact duration of 6–10 seconds. After this dura-
tion, the tightening torque is increased only minimally.
English | 15
1 609 92A 3VH | (10.11.17)