Accessories - Bosch 0 607 661 505 Originalbetriebsanleitung

OBJ_BUCH-1993-004.book Page 23 Wednesday, September 14, 2016 9:08 AM
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Remove the retaining ring 35 on the quick-change chuck.
Pull off the steel ring 36, pressure spring 37 and sleeve 13.
Remove the retaining ring 21 on the housing 3 and push
the impulse mechanism out of the housing.
Pay attention to a small ball 23, which can fall towards you.
– Clamp the impulse mechanism in a vice and take care that
the piston cover 30 faces upwards.
– Unscrew the fastening screw 32 with an Allen key
(2.5 mm), while applying a counterforce to the piston cov-
er 30 with an appropriate open end spanner (see "Techni-
cal Data" for width across flat).
– Remove the retaining ring 33 and lift off the piston cover
30.
– Unclamp the impulse mechanism 26 and empty the oil.
Dispose of the waste oil in an environmentally friendly
manner.
– Remove the retaining ring 22 and take out the camshaft
24.
– Remove the piston 28 by lightly tapping open the impulse
mechanism with the opening facing downwards.
– Check the parts of the impulse mechanism for signs of
wear.
– Prepare the new O-rings 25, 29 and 31 for mounting, by
coating them in hydraulic oil.
Assembly of the impulse mechanism
– Check that the retaining ring 27 is seated correctly on the
piston.
– Replace the O-ring 25 on the camshaft 24 and the O-ring
29 on the impulse mechanism 26.
– Insert the piston 28 with the retaining ring 27 facing down-
wards into the impulse mechanism 26.
– Push the camshaft 24 from the front with light pressure in-
to the piston in the impulse mechanism.
– Mount the retaining ring 22 and check that it is seated cor-
rectly.
– Clamp the impulse mechanism 26 into the vice with the
opening facing upwards.
– Rotate the camshaft 24 until it reaches top dead centre.
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Pour in hydraulic oil up to the rim of the impulse mecha-
nism.
Slowly rotate the camshaft 24 five to six times.
When no more air bubbles rise up, rotate the camshaft to
top dead centre and once again pour in hydraulic oil up to
the rim of the impulse mechanism.
Take care that the hydraulic oil is always filled to the top
rim of the impulse mechanism and not just to the upper
edge of the piston!
Repeat the process until there is no more air in the piston.
Place the piston cover 30 back on with a slight rotation and
press it downwards with a soft cloth.
Remove any residual oil.
Bosch Power Tools
– 0 607 661 507:
Pour in hydraulic oil up to the upper edge of the piston 38
(see figure J).
Slowly rotate the camshaft 24 five to six times.
When no more air bubbles rise up, rotate the camshaft to
top dead centre and once again pour in hydraulic oil up to
the upper edge of the piston 38.
Take care that the hydraulic is only filled to the upper
edge of the piston and never to the rim of the impulse
mechanism! The pneumatic tool does not provide full per-
formance when too much oil has been poured in.
Repeat the process until there is no more air in the piston.
Place the piston cover 30 back on with a slight rotation and
press it downwards with a soft cloth.
If hydraulic oil spills out, you have poured in too much oil.
– Replace the O-ring 31 on the piston cover 30 and screw in
the fastening screw 32 (2.5 mm) with an Allen key.
– Insert the retaining ring 33 and take care that it slots into
the groove.
– Tighten the fastening screw 32 with a torque of 1.5 ± 0.4
Nm while applying a counterforce to the piston cover 30
with an appropriate open end spanner (see "Technical Da-
ta" for width across flat).
– Unclamp the impulse mechanism 26 and rotate the cam-
shaft 24 once.
– Insert the impulse mechanism 26 into the housing 3.
– Mount the retaining ring 21 on the housing.
– Place an appropriate open end spanner (see "Technical
Data "for width across flat) on the spanner flat 34 and
retighten the housing 3 of the impulse mechanism in a
clockwise direction to 35 ± 5 Nm.
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Lay the ball 23 in the opening on the camshaft 24.
Pull the sleeve 13 on the camshaft over the ball, place the
pressure spring 37 and the steel ring 36 back on and
mount the retaining ring 35 on the quick-change chuck.
Take care that the retaining ring 35 is seated in the groove
and that the sleeve 13 of the quick-change chuck can move
easily.
 After each oil change, check that the pneumatic tool
functions properly.

Accessories

For more information on the complete quality accessories
program, please refer to the Internet under
www.bosch-pt.com or contact your specialist shop.
1 609 92A 37T | (14.9.16)
English | 23