Hi-Force TWH27N Manual

Prepared by:- Mark Dalley
REV NO.:-
ECO:-
Hi-Force TWH-N series of lightweight aluminium (except the TWH430N) hydraulic torque wrenches are designed to
handle the toughest bolting jobs quickly and accurately. Hi-Force offer 5 models with output torque capacities from
2700Nm to 48181Nm. Series TWH-N series Low Profile Hydraulic Torque Wrenches are designed for installing and
removing large bolts having minimal wrench clearance at offshore platforms, power plants, steel erection sites and
other locations requiring precise high torque during bolt makeup and maximum torque for bolt breakdown.
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 connect 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.

Do not remove any labels. Replace any damaged label.
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 on this tool.

Always wear head and hand protection and protective clothing when operating this tool.

Use only impact sockets and accessories. Do not use hand (chrome) sockets or accessories.

Keep hands, loose clothing and long hair away from the reaction arm and working area during operation.
Do not attempt to provide a reaction point for the tool with your hands during operation.

This tool will exert a very large reaction force. Use proper mechanical support and correct reaction arm
positioning to control these forces. Do not position the reaction arm so that it tilts the tool off the axis of the
bolt and never use the uni-swivel coupling as a reaction point.

Avoid sharp bends and kinks that will cause severe back-up pressure in hoses and lead to premature hose
failure.

Use accessories recommended by Hi-Force.

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 lift or carry the tool by the hose.
HYDRAULIC TORQUE WRENCH-HEX DRIVE
FOR USE WTH:- TWH27N, TWH54N,
TWH120N, TWH210N & TWH430N
0003
3903
READ THIS MANUAL BEFORE OPERATING THE TOOL
Page 1 of 8
Approved by:-
Revised by:-
SAFETY
TDS:-
Matthew Hughes Date:-17/08/12
Martin Davies Date:-18/11/15
1287