Bosch 0 607 459 203 Notice Originale page 18

OBJ_BUCH-1578-004.book Page 18 Monday, October 10, 2016 1:03 PM
18 | English
When the lever 5 is released too early, the preset torque is not
reached.
Reversing the rotational direction
– Right rotation: The rotational direction switch 9 is not
pressed.
– Left rotation: Press the rotational direction switch 9.
Turn the rotational direction switch 9 to lock its position.
Working Advice
Sudden loads cause a sharp drop in speed or a complete stop,
yet do not cause damage to the motor.
Screw-suction (see figure B)
– Screw out the screw-suction bolt 6 to the stop.
– Remove the lock nut 2 (left-hand thread) from the housing
sleeve 3 and unscrew the union nut 10.
– Insert the screwdriver bit 16 into the tool holder 1 and
screw the union nut 10 on.
– Place the recoil spring of guide sleeve 15 over the screw-
driver bit 16 and the union nut 10.
– Insert the guide sleeve 14 into lock nut 2 and screw the
lock nut onto housing sleeve 3.
Keep your workplace clean. Contaminated air can impair the
screw-suction function.
Setting the Torque (see figure C)
– Remove the lock nut 2 (left-hand thread) from the housing
sleeve 3 and unscrew the union nut 10.
– Unscrew the housing sleeve 3 (left-hand thread) and pull
the clutch 17 out.
– Insert Allen key 18 into the shaft of the clutch and hold the
clutch with the Allen key 17.
– Apply the 12 mm open-end spanner to the hexagon nut
19. Adjust the spring tension (notch for notch) in steps by
turning the open-end spanner.
Turning in the clockwise direction results in a higher torque, in
the counterclockwise direction, a lower torque.
Start with low setting values.
– Reassemble the pneumatic tool in reverse order.
Note: For soft screwdriving applications, the safety clutch
does not disengage for low torque settings.
After Setting the Torque
– Adapt the torque to the respective screwdriving applica-
tion (hard, medium, soft) through practical testing.
– Check the torque with an electronic torque measuring de-
vice or a torque wrench.
 For high torque settings, appropriately high counter-
force is required.
Replacing the Clutch Spring (see figure C)
Torque adjustment range
0.06–0.3 Nm
0.2–0.6 Nm
0.5–1 Nm
– Remove the lock nut 2 (left-hand thread) from the housing
sleeve 3 and unscrew the union nut 10.
1 609 92A 37J | (10.10.16)
– Unscrew the housing sleeve 3 (left-hand thread) and pull
the clutch 17 out.
– Insert Allen key 18 into the shaft of the clutch and hold the
clutch with the Allen key 17.
– Unscrew the hexagon nut 19 with the open-end spanner,
size 12 mm.
– Remove the notched disc 20. Take care that the clutch
sleeve is not moved; it retains 4 balls (Ø 2 mm).
– Replace the installed clutch spring 21 with a new one.
– Mount the notched disc 20 in such a manner that the knobs
fit on hexagon nut 19 and screw the hexagon nut 19 on.
– Set the torque.
Start with low setting values.
– Reassemble the pneumatic tool in reverse order.
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.
Regular Cleaning
– Clean the sieve at the air intake of the pneumatic tool regu-
larly. For this, unscrew the hose fitting 11 and remove any
dust and debris from the sieve. Afterwards, retighten the
hose fitting again.
– 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 17) 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
– 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.
– Relubricate moving parts of the clutch with a few drops of
SAE 10/SAE 20 engine oil after approx. 100.000 screw-
Identification colour
driving applications; relubricate sliding and rolling parts
with Molykote grease. Afterwards, check the clutch set-
green
ting.
brown
– After each service, check the speed with a speed-measur-
orange
ing device and check the pneumatic tool for increased vi-
brations.
Bosch Power Tools