Air Supply; Working Instructions; Putting Into Operation - Bosch DL 0 607 453 4 series Bedienungsanleitung

MGS_bu_3609929452_t.fm5 Seite 13 Dienstag, 28. September 1999 10:01 10

Air Supply

The supplied air must be free of foreign material and
humidity to protect the
contamination and rust.
The use of a pressurised air maintenance unit is
necessary.
All fittings, connecting lines and hoses must be
dimensioned for the required air pressure and volume.
Avoid restrictions in the air supply resulting from, e.g.,
pinching, kinking or stretching!
In case of doubt, measure the pressure with a
pressure gauge at the air inlet with the unit switched
on.
Maintenance Unit
The maintenance unit ensures fault-free functioning of
pneumatic tools.
It consists of two main components:
– Filter with water separator
– Pressure reducing valve.
Observe the operating instructions of the maintenance
unit.

Putting into Operation

The unit operates optimally with a pressure of 6.3 bar
(90 psi) measured at the air inlet with the unit running.
Before connecting to the air supply, operate the on-off
switch 10 several times.
Switching On / Off
If the unit does not start, e.g. after not being used for
a longer time, disconnect the air supply and turn the
tool holder 1 by hand. Adhesive forces are eliminated
in this manner.
For an interruption of the air supply or reduced
operating pressure, switch off the machine.
Check the operating pressure and start again
when the pressure returns to normal.
Type 0 607453429/...430/...431/...432/...433
Thrust and Switch Start
Switching on: Press the on/off switch 10 and apply
axial pressure to the tool.
Switching off: The machine switches off automatically
when the torque setting is reached.
Type 0 607453434/...435/...436/...437/...438
Switch Start
Switching on: Press the on-off switch 10.
Switching off: Release the on-off switch 10.

Working Instructions

Before performing any work on the unit itself,
unit from damage, disconnect the air supply.
Setting the Torque
(Figures
Turn the protective sleeve 3 until a slot is visible in the
housing.
Turn the tool holder 1 with a 1/4" Allen key until a
half-round cut-out in the adjustment disk 12 is
visible.
Insert the adjustment tool 11 in the cut-out.
Turning in the clockwise direction results in a higher
torque, in the counter clockwise direction, a lower
toque.
Remove the adjustment tool. Turn the protective collar
until it can be heard to latch.
After the adjustment
Adapt the torque by means of trial boltings for the
specific bolting action (hard, middle, soft). Check the
torque with an electronic torque measuring instrument
or a torque wrench.
Type of Clutch
Type 0 607 453 429/... 430/... 431/... 432/... 433
With a clamping device in the area 4, this counter
force can more easily be counteracted.
Machines that are operated with a torque greater than
7 Nm are to be used with a clamping device or an
auxiliary handle.
Take care that the auxiliary handle or the clamping
device holds the machine in a firm and secure manner.
and )
A B
Caution!
For soft bolting actions, the clutch no longer
ratchets even for low torque settings.
In Right Rotation
The machines have torque-dependent
switch-off clutches that can be
adjusted over a wide range.
respond when the adjusted torque is
reached.
In Left Rotation
When loosening bolts, a ratcheting
clutch is active that functions until the
on/off switch 10 is released.
For higher torques, a correspondingly greater
counter force is necessary.
They
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