Cembre NR-11P Operation And Maintenance Manual page 7

To assemble the socket (Ref. to Fig. 7 page 67):
1 Slide the socket onto the square shaft (08) lining up the bores of the socket and the shaft (Ref. to
Fig. 7a).
2 Fully insert the central split pin of "CLIP-NR" into the through bore, ensuring the sprung arms are
correctly located in the slot around the socket (Ref. to Fig. 7b).
To disassemble the socket, extract "CLIP-NR" by simultaneous lateral pushing on both ends of the
sprung arms (Ref. to Fig. 7c).
Keep the "CLIP-NR" in a safe place to avoid loss or damage.
Any accessory (extension, adapter, joint, socket) must be specifi ed for use with impact
tools.
The use of unsuitable accessories could lead to breakage.
3.3) Torque adjustment
The wrench is equipped with a system which allows torque limita-
tion on tightening and loosening.
For particular requirements it is possible to vary the torque by
means of a 5 position selector (13).
To select torque values, simply turn the selector in one direction
or the other.
Usually selector (13) is set:
– in the tightening phase on low torque settings,
pos. 1 - 2 - 3.
– in the loosening phase on high torque settings,
pos. 3 - 4 - 5.
3.4) Setting the rotation direction
The rotation direction of the shaft is set using the 3 position
selector (12):
: right sense of rotation, to tighten.
: idle position (main shaft gears disengaged).
: left sense of rotation, to loosen.
WARNING: adjustment of selector (12) must always be carried out with the engine
switched off or idling to ensure correct engagement of gears.
Once a rotation direction has been set, the rotation of the square shaft will be achieved only by
increasing the revs of the engine consequent to automatic intervention of the centrifugal clutch.
3.5) Operation
With the impact wrench placed on the ground on a fl at surface, carry out the following in the order
shown:
– Add fuel mixture to the tank (see § 4).
– Choose the socket appropriate to the work to be carried out and assemble it on the square shaft
(see § 3.2).
7
(Ref. to Fig. 3)
(Ref. to Fig. 4)
13
Reference
12
ENGLISH
FIG. 3
FIG. 4