Operating Instruction Manual:
OM-TWS-N-01
Serial Numbers:
All
14
6.0 Operation
Hi-Force TWS-N Torque Wrenches require a suitable double-acting Hydraulic Torque Wrench pump for
operation. Make sure you read this manual in conjunction with the Torque Wrench Pumps operating
instruction manual to ensure correct and safe operation of all hydraulic equipment in the system.
Before applying pressure to the system make sure you observe the following points
You are aware of the correct operation of the Torque Wrench Pump.
You are aware of the maximum working pressure of the Torque Wrench/s.
You are aware of the maximum torque / tension the stud / bolt can withstand.
You are aware of the required working pressure/s that must be applied to the Torque Wrench/s.
You have read and fully understood the torquing sequence and procedure.
You have performed the relevant risk assessment/s and have a method statement (safe system of
work) for all operators to follow.
6.1 Operating the Wrench
Hi-force recommends that operation of the pump/ wrench combination be a minimum 2
person job, one to operate the pump and one to operate the wrench. An additional
operator will be required for each addition wrench connected to the pump.
To reduce the likelihood of a finger / hand trapping accident, at least one of the
operators
MUST
be trained in the safe usage of the equipment and a clear system of
communication
MUST
be established.
To ensure the safety of the torque tool operator/s, the pump
MUST ONLY
be operated
once all torque wrench / tool operators have indicated it is safe to do so.
The position of the Square Drive relative to the Shroud determines whether the action will tighten or loosen
the nut. The power stroke of the Piston Assembly will always turn the Square Drive toward the Shroud.
Figure 6.1: Positioning the Torque Wrench
