5.4 Pressure and torque setting
Read the pump instructions. Without placing
the wrench on the bolt or nut, operate the
pump in the advance direction.
IMPORTANT: Before using the
pump with the torque wrench on a
bolt or nut make a functional test at
maximal 100 bar [1450 psi].
Set the required torque by adjusting the
pressure relief valve on the advance side (P)
of the pump and reading the value on the
pressure gauge.
When making bolted connections always
consult the manufacturers instructions or the
engineering recommendations.
Pressure setting can be adjusted between
40 - 800 bar [580 - 11600 psi]. Adjust the
pressure relief valve setting by turning the
spindle on the pump:
• clockwise = higher pressure (torque)
• counter-clockwise = lower pressure (torque)
Set the torque by consulting the tables
C
and
on pages 14-16 in this instruction
sheet, or torque versus pressure chart
included with each wrench. When using
Allen-key drives consult tables
on pages 12-13 for max. allowed torque.
5.5 Loosening and tightening
WARNING: Switch off the pump
before changing sockets, Allen-
key drives or wrench position.
Before positioning the wrench on bolt or nut,
assemble according paragraph 4.0.
11
12
See
and
for correct wrench, reaction
arm and socket (or Allen-key drive) position.
Make sure pump is not running and hoses
are disconnected from the wrench. Place the
torque wrench on the bolt connection so that
the bolt head or nut is fully enclosed by the
socket or the Allen-key drive fully engaged in
the socket head cap screw.
11
12
B
A1
A2
and
13
8
LOOSEN
TIGHTEN