Working Advice; Maintenance And Service; Regular Cleaning; Scheduled Maintenance - Bosch 0 607 661 505 Originalbetriebsanleitung

OBJ_BUCH-1993-004.book Page 22 Wednesday, September 14, 2016 9:08 AM
22 | English
– The machine switches off automatically as soon as the
preset torque is reached.
– Before switching on the machine for a new screw applica-
tion, you must first release the on/off switch 4.
 When the on/off switch 4 is released prematurely, the
preset torque is not reached.
Note: If the machine does not automatically switch off, you
must reset the torque (see "Setting the Torque", page 22).
Setting the Torque (see figure G)
The torque is generated through an impulse. The impulse is
produced in an impulse mechanism by an amount of oil being
forced through an adjustable constriction.
The torque can be set externally.
– Unscrew the locking screw 8 with the Allen key 19 provid-
ed.
The adjustment screw 20 for the torque is located in the
opening.
– Turn the adjustment screw 20 using the Allen key 19.
Turning in the clockwise direction results in a higher
torque, in the counterclockwise direction, a lower torque.
Note: The required adjustment torque is dependent on the
type of threaded connection and can be best determined by
practical trials.
– Check a trial screw application with a torque spanner.
If the desired torque is not reached, repeat the procedure.
– Screw the fastening screw 8 back in once the torque has
been set.
Note: If the machine does not switch off automatically
when the set torque is reached, you must rotate the adjust-
ment screw 20 in a counterclockwise direction to reduce the
tightening torque.

Working Advice

Sudden loads cause a sharp drop in speed or a complete stop,
yet do not cause damage to the motor.

Maintenance and Service

Maintenance and Cleaning
 Have maintenance and repair work carried out only
through qualified persons. This will ensure that the safe-
ty of the pneumatic tool is maintained.
An authorized Bosch after-sales service agent will carry out
this work quickly and reliably.
Use only original Bosch spare parts.
Lubricating the Pneumatic Tool
For direct lubrication of the pneumatic tool or admixtures to
the service unit, use SAE 10 or SAE 20 engine oil.

Regular Cleaning

– Clean the sieve at the air intake of the pneumatic tool regu-
larly. For this, unscrew the hose fitting 6 and remove any
dust and debris from the sieve. Afterwards, retighten the
hose fitting again.
1 609 92A 37T | (14.9.16)
– Water and debris particles in the compressed air cause
rust and lead to wear of plates, valves etc. To prevent this,
fill several drops of engine oil into the air intake 7. Recon-
nect the pneumatic tool to the air supply (see "Connecting
the Air Supply", page 21) and run it for 5 –10 seconds,
while catching/picking up the escaping oil with a cloth. Al-
ways carry out this procedure when not using the pneu-
matic tool for a longer period of time.

Scheduled Maintenance

– See also "Oil change", page 22.
– Clean the gearbox after the first 150 running hours using a
mild solvent. Follow the solvent manufacturers directions
for use and disposal. Lubricate the gearbox using Bosch
gearbox lube. Repeat the lubrication procedure every
300 hours after the initial gearbox service.
Special gearbox grease (225 ml)
Article number 3 605 430 009
– The motor plates should be checked regularly by special-
ised personnel and replaced, if required.
– After each service, check the speed with a speed-measur-
ing device and check the pneumatic tool for increased vi-
brations.
Oil change
After approx. 150,000 hard joint screw applications (max.
2 –3 impulses) the oil in the impulse mechanism 26 as well as
the O-rings 25, 29 and 31 should be changed.
Use exclusively these accessories:
0 607 661 ...
Hydraulic oil 3 605 430 008
O-ring set (7 pcs) 3 607 030 360
O-ring set (7 pcs) 3 607 030 352
You only require three rubber rings from the O-ring set. Pay
attention to the exact size of the O-rings being replaced.
Disassembly of the impulse mechanism
(see figure H or figure I)
It is necessary to dismantle the impulse mechanism 26 in or-
der to change the oil.
 Allow the impulse mechanism to cool down to room
temperature before removing it.
 Wear suitable protective clothing, protective goggles
and protective gloves when changing the oil.
– Place an appropriate open end spanner on the spanner flat
34 (see "Technical Data" for width across flat) and un-
screw the housing 3 with the impulse mechanism in a
counterclockwise direction.
 Take care that the vane motor does not fall out of the
rear tool housing.
– 0 607 661 505/... 507/... 509:
Remove the retaining ring 21 on the housing 3 and push
the impulse mechanism out of the housing.
... 505
... 506
... 509
... 510 ... 507
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Bosch Power Tools