Hi-Force TWM2000 Series Buku Petunjuk - Halaman 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:
M
M
xW
L
x
M
= Torque Wrench Setting: the torque
xW
that has to be set on the torque
wrench scale.
M
= Desired Torque Setting: the torque
A
that the bolt or nut needs to be
tightened to.
L
= Torque Wrench Length: the
w
distance between the center of the
torque wrench's square drive and
the center of the handle (see table
in section 7).
L
= Extension Length: the distance
x
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.
)
xW
L
A
w
L
w