Method Of Operation; Starting Operation; Working Instructions - Bosch GDS 18 E Professional Original Operating Instructions
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- Original instructions manual (146 pages) ,
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- Original instructions manual (31 pages)
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OBJ_BUCH-546-001.book Page 7 Friday, November 9, 2007 8:43 AM
Operation
Method of Operation
The tool holder 5 with the tool is driven by an
electric motor via a gear and impact mechanism.
The working procedure is divided into two phas-
es:
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.
Overloading the motor is not possible, as the
hammer mechanism disengages when reaching
the rated load.
Starting Operation
Observe correct mains voltage! The voltage
of the power source must agree with the
voltage specified on the type plate of the
power tool.
Reversing the Rotational Direction
(see figure A)
The rotational direction switch 4 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 3 actuated.
Right rotation:
Press the rotational direction switch 4 rightward
to the stop.
Left rotation:
Press the rotational direction switch 4 leftward
to the stop.
Switching On and Off
For starting operation, press the On/Off switch
3 and keep it pressed.
To switch off the machine, release the On/Off
switch 3.
Bosch Power Tools
Adjusting the Speed
The speed of the switched on power tool can be
variably adjusted, depending on how far the
On/Off switch 3 is pressed.
Light pressure on the On/Off switch 3 results in
a low rotational speed. Further pressure on the
switch results in an increase in speed.
Preselecting the Speed
The required speed can be preselected with the
dial control 2 (also while running).
Working Instructions
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 3-5 seconds. After this duration, the
tightening torque is increased only minimally.
However, the transmission housing heats up no-
ticeably.
Note: The consequences of excessive heating-up
are high wear of all hammer mechanism compo-
nents and a high requirement of lubricant.
The impact duration is to be determined for each
required tightening torque. The actually achieved
tightening torque is always to be checked with a
torque wrench.
English | 7
1 609 929 M72 | (9.11.07)
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