Hi-Force TWM1000 Series Manual de instrucciones - Página 3

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Important Note*: Only torque wrenches with

aluminum alloy housing are available with a

double square drive.

Throughout these Operating Instructions, the

procedures

are

described,

graphically for a torque wrench with a single

square drive. Please note that the procedures

are the same for torque wrenches with a double

square drive

Setting the Torque

ALWAYS make sure that you set the torque

wrench in the appropriate scale. Failure to use

the appropriate scale can result in incorrectly

torque loaded bolts causing DAMAGE.

The TWM1000 torque wrench is equipped with

a double scale (Nm / lbfft or lbfin). Check

the unit and scale. Familiarize yourself with the

torque wrench and its scales.

If using nonstandard extensions end fittings, the

torque wrench setting must be adjusted. Non-

standard extension end fittings increase the

effective length of the wrench. As a result, the

actual torque applied to the bolt you are

tightening will be higher than the setting on the

torque wrench.

ALWAYS set the desired torque before using the

torque wrench. The procedures for setting the

torque are different depending on type of

torque wrench you are using:

Aluminium alloy housing:

Pull out the Hexagon-Key (A) on the end of the

handle (B) and angle it up

Turn the Hexagon-Key (A) until the desired

torque in the particular scale (C) Nm or lbfft

corresponds with the mark on the housing.

(If using extension pieces, see section 3.4.)

Bring the Hexagon-Key (A) back into the

Hi-Force Limited – Prospect Way – Daventry – Northants NN11 8PL – United Kingdom

Tel: +44(0) 1327 301000: Fax: +44(0) 1327 706555: Website: www.hi-force.com

INSTRUCTION MANUAL:

Model Series: TWM1000, TWM1500, TWM2000

and depicted

starting position and push it into the end of the

handle (B).

Working with Non-standard Extension End

Fittings

NEVER use non-standard extension end fittings

with a torque wrench with a built-in ratchet or

ratchet adaptor.

You must read and understand these

instructions before using non-standard

extension end fittings with the torque wrench.

Bolts incorrectly torque loaded can cause

DAMAGE and SERIOUS INJURY.

Non-standard extension end fittings increase

the effective length of the wrench. As a result,

the actual torque applied to the bolt you are

tightening will be higher than the setting on the

torque wrench.

The new setting for the torque wrench (M

must be calculated according to the following

formula:



= Torque Wrench Setting: the torque

that has to be set on the torque

wrench scale.

= Desired Torque Setting: the torque

that the bolt or nut needs to be

tightened to.

= Torque Wrench Length: the

distance between the center of the

torque wrench's square drive and

the center of the handle (see table

in section 7).

= Extension Length: the distance

between the center of the torque wrench's

square drive and the center of the bolt or nut

(also called depth gauge of the end fitting

Tightening Bolts

OVERLOAD HAZARD

The torque wrench can overload during us and

break causing SERIOUS INJURY

ALWAYS use only original accessory parts.

)



