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Mounting the
gear cover
1
Fix the gear cover (2) with two screws (1)
onto the gear box (torque = 3 Nm).
Mounting the
crank wheel
1
Combined drill/chisel hammer: Press
the needle bearings (2) and (3) flush into
the gear box (4).
☞
The names on the needle bearings
must be visible!
2
Press the needle bearings (6) and (7)
flush into the crank wheel (5).
☞
The names on the needle bearings
must be visible!
3
Insert the safety clutch (1) into the gear
box (4).
☞
The safety cluth is pre-set and is
released at:
34 Nm static
120 Nm dynamic.
☞
The safety clutch is only available as a
complete assembly!
4
Insert the following parts into the gear box:
– disc (8)
– axial bearing (9)
– disc (A)
– crank wheel assembly (5).
Mode of
operation of the
safety clutch
If the rotational movement of the drill is
blocked, the safety clutch protects the user
from the rotation of the machine. The safety
clutch limits the maximum torque of the drill-
ing tool. As soon as this limit is exceeded, the
rollers in the safety clutch withdraw, and the
toothed gear of the clutch can rotate, where-
as at the same time the bevel wheel and the
clutch wheel are idle. This is due to the fact
that the cam track applies greater force on the
rollers than the spring. The driving mecha-
nism from motor to drilling tool is interrupted.
1
2
3
1
2
3
4
5
6
8
9
A
7
4
Nockenlaufbahn
Kraft durch
Nocke
Federkraf
t
Kupplungszahnrad
dreht weiter
Kegelrad u. Kupplungs-
rad sind blockiert
Walzen
weichen
zurü ck
Walze
Bevel wheel and
clutch wheel are idle
Roller
Power
by cam
Cam track
Toothed gear
of the
clutch keeps
rotating
Rollers
withdraw
Resilience
