6
L4442
4.3 Adjusting Reaction Arm
The reaction arms are employed to absorb and
counteract forces created as the unit operates, which
should extend in the same direction of the square drive;
however, slight adjustments may be made to suit your
particular application.
In operation, the reaction arm must be fully engaged
and secured. To engage the reaction arm, depress the
spring loaded button located on the rear of the end cap,
push to position and release to lock. Ensure the retainer
is locked in place prior to using the wrench.
To remove the reaction arm, depress the spring loaded
button located on the rear of the end cap and pull to
release.
Figure 4: Positioning Reaction Arm
4.4 Attaching Handle
Secure the positioning handle with thumb screw or
eyebolt. Handle can be installed on either side of wrench
(as needed).
Figure 5: Attaching Handle
4.5 Hose Connection
Be sure all hoses and fittings are rated for
at least 10,000 psi [690 bar] operation. Check that all
hydraulic couplings are securely connected before
operating the tool. Failure to observe these precautions
may result in the hoses bursting or disconnecting under
pressure. High pressure oil leakage may also occur.
Serious personal injury could result.
The torque wrench and hydraulic pump are connected
by a 10,000 PSI (700 Bar) twin-line hose assembly. On
each twin hydraulic hose, one line must be MALE-MALE
and the other line must be FEMALE-FEMALE in order to
ensure a correct interconnection between the pump and
wrench. Ensure the connectors are fully engaged and
screwed snugly together.
NEVER use two twin hydraulic hoses
between the pump and wrench. If so, you have the
high pressure on the retract side and your wrench is
not able to work properly. To avoid tool malfunction, do
not reverse connectors. Do not try to loosen the swivel
assembly at any moment.
Connect hoses to wrench as described in the following
steps:
• Be sure that all pressure in system is relieved and
that pressure gauge indicates zero psi/bar.
• Remove the hose dust caps.
• Connect the hose with the female coupling to the
wrench advance coupling.
• Connect the hose with the male coupling to the
wrench retract coupling.
• At each connection, pull the collar on the female
coupling over the male coupling. Engage threads
and hand tighten the collar.
• Connect the hoses to the pump.
Refer to the pump instruction manual:
Figure 6: Drive direction change
WARNING
CAUTION
