Prepared by:- Mark Dalley
Hi-Force TWS-N series of lightweight aluminium hydraulic torque wrenches are designed
to handle the toughest bolting jobs quickly and accurately. All models provide a torque
accuracy of +/- 3%. The reaction arm allows the user to easily position the tool and if
necessary react off the tool body in confined situations.
SAFETY
READ THIS MANUAL BEFORE OPERATING THE TOOL
FAILURE TO OBSERVE THE FOLLOWING WARNINGS COULD
RESULT IN SERIOUS BODILY INJURY
∙Always operate, inspect and maintain this tool in accordance with International Standards ISO9001 and ANSI B30.1.
∙This tool will function using an air or electric powered hydraulic pump.  Adhere to the pump safety requirements and follow instructions when connecting the pump to
the tool.
∙Use only equipment rated for the same pressure and torque.
∙Use only a hydraulic pump capable of generating 10,000 psig (700Bar) maximum pressure with this tool.
∙Use only twin line hydraulic hose rated for 10,000 psig (700Bar) pressure with this tool.
∙Do not interchange the male and female swivel inlets on the tool or the
connections on one end of the hose. Reversing the inlets will reverse the power
stroke cycle and may damage the tool.
∙Do not use damaged, frayed or deteriorated hoses and fittings.  Make certain there are no cracks, splits or leaks in the hoses.
∙Use the quick connects system to attach the hoses to the tool and pump. Make  certain the spring-loaded retaining rings are fully engaged to prevent the
connectors from disengaging under pressure.
∙When connecting hoses that have not been preloaded with hydraulic oil, make certain the pump reservoir is not drained of oil during start-up.
move off
∙Do not remove any labels. Replace any damaged label.
Prepared by:- Mark Dalley
USING THE TOOL
∙Do not handle pressurised hoses.  Escaping oil under pressure can penetrate the  skin, causing serious injury. If oil is injected under the skin, see a doctor immediately.
∙Never pressurise uncoupled couplers. Only use hydraulic equipment in a coupled  system.
∙Always wear eye and ear protection when operating or performing maintenance of this tool.
∙Always wear head and hand protection and protective clothing when operating this tool.
∙Use accessories recommended by Hi-Force.
∙Use only impact sockets and accessories. Do not use hand (chrome) sockets or accessories.
∙Use only sockets and accesssories that correctly fit the bolt or nut and function without tilting the tool off the axis of the bolt.
∙This tool is not designed for working in explosive atmospheres.
∙This tool is not insulated against electric shock. When using this tool with a pump having an electrical power source or circuits, follow the pump instructions for
proper grounding.
∙Do not carry or lift the tool by the hose.
CONNECTING THE TOOL
Attach the twin line hose to the uni-swivel coupling of the Square Drive Torque Wrench using the spring–loaded quick connect ends. Make certain that they are fully engaged.
Connect the opposite ends of the hose to the Pump in the same manner.
Prepared by:- Mark Dalley
SETTING THE SQUARE DRIVE FOR ROTATION
The position of the Square Drive when looking toward the Shroud will determine if the tool is set to ti
ghten or loosen the nut. When the Square Drive extends to the left when looking at the Shroud from the front, the tool is set to loosen the nut. When the Square Drive extends to the right, the tool is set to tighten the nut. To change the direction of rotation press the push button release on the drive retaining plate and pull the Square Drive out of the Housing. Insert the Square Drive into the opposite side of the Housing and secure it by installing the push button release retaining plate into the end of the drive.
SETTING THE TORQUE
After determining the desired torque, use the torque conversion chart on the Shroud or the torque conversion charts on page 5 to determine the pressure that is necessary to achieve that torque.
1. Connect the tool to the power supply and turn the pump on.
2. Depress the advance remote control button causing the pressure to be shown on the
gauge.
3. Adjust the pressure by first loosening the nut that locks the pressure adjustment handle
and then rotate the handle clockwise to increase the pressure and counter clockwise to decrease the pressure. When decreasing pressure, always lower the pressure below the desired point and then bring the pressure gauge back up to the desired pressure.
4. When the desired pressure is reached, retighten the lock nut and cycle the tool again to
confirm that the desired pressure setting has been obtained.
Prepared by:- Mark Dalley
SETTING THE REACTION ARM
The function of a reaction device is to hold the tool in position against the forces generated to tighten or loosen bolts or nuts. Hydraulic wrenches generate tremendous force.
Make sure the Reaction Arm is positioned correctly. (Refer to DRAWING 1).
The Reaction Arm can be positioned in numerous places within a 360O circle. However, for the Arm to be correctly positioned, it must be set within a 90O quadrant of that circle.
That quadrant is the area located between the protruding Square Drive and the bottom of the Housing away from the Swivel Inlets. It will always be toward the lower half of the Housing and on one side of the Housing when tightening and the other side when loosening.
PLEASE NOTE: Under certain conditions it is possible for the reaction arm location plug to be pushed slightly into the tool body. This can happen as a result of the tool being
dropped or hit against a solid object while the arm is not fitted. Once this has occurred the reaction arm may not latch into place correctly.
The problem is very simply cured and in many cases will rectify itself before the operator is even aware it has occurred. To return the plug to its correct position simply connect the tool to a pump and cycle the mechanism backwards and forwards a couple of times. In a lot of cases just switching the pump on will be enough. The reaction arm should then latch on correctly.
OPERATING THE WRENCH (Refer to DRAWING 2)
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.
WRENCH POSITIONS
1. Place the Square Drive in the socket, insert the socket retainer ring and pin, and place
the socket on the nut. Make certain the Square Drive and socket are the correct size for the nut and that the socket fully engages the nut
2. Position the reaction arm against an adjacent nut, flange or solid system component.
Make certain that there is clearance for the hoses and uni-swivel coupling. DO NOT allow the tool to react against the hoses, or uni-swivel coupling.  When reacting directly off the tool , with reaction arm removed DO NOT react off the exposed End Plug Spigot.
Prepared by:- Mark Dalley
3. After having turned the Pump on and pre-setting the pressure for the correct torque,
depress the remote control advance button to advance the Piston Assembly.
4. When the wrench is started, the reaction surface of the wrench or Reaction Arm will
move against the contact point and the nut will begin to turn.  Once the piston reaches the end of its stroke depress the remote control return button to retract the piston.
5. Continue this cycling operation of advance and retract until the nut is no longer turning
and the Pump Gauge reaches the pre-set pressure. The piston rod will retract when the retract button is pressed and under normal conditions, an audible “click” will be heard as the tool resets itself.
6. Continue to cycle the tool until it “stalls” and the pre-set psi/torque has been attained.
7. Once the nut stops rotating, cycle the tool one last time to achieve total torque.
DRAWING 1
DRAWING 2
`

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。