Park Tool TW-6 - Manual (Page 2)

Park Tool Co. www.parktool.com
Ratcheting “Click Type” Torque Wrench
TW-5
3-15 Newton Meter range (26-132 Inch Pounds)
TW-6
10-60 Newton Meter range (88-530 Inch Pounds)
Specific torque specifications are provided by most
component manufacturers to prevent over tightening
and under tightening of bolts and nuts. Park Tool TW-5
and TW-6 Torque Wrenches are high quality, ratcheting,
click type torque wrenches that accurately measure and
apply the proper amount of torque to a bolt or nut.
TORQUE WRENCH USE
1. Determine required torque for threaded fastener
(consult component manufacturer for recommend-
ed torque specifications).
2. Flip ratchet lever to the right if turning wrench in a
clockwise direction. Flip ratchet lever to the left if
turning wrench in a counter-clockwise direction.
3. Pull locking ring to “unlock” position.
4. Turn locking ring until desired torque setting is
displayed by cursor (red line) in scale window.
For the TW-5, major graduations on the scale are
in two Newton Meter increments. For the TW-6,
major graduations on the scale are in four Newton
Meter increments.
5. Push locking ring to “lock” position.
6. Install desired bit (not supplied) onto square head
of torque wrench. The TW-5 accepts 1/4” drive bits
and 3/8” drive bits (with the included adapter).
The TW-6 accepts 3/8” drive bits.
7. Place bit and wrench onto bolt or nut to be
tightened. Grasp handle of torque wrench and
turn with steady force until a “click” is heard and/
or felt. Immediately release force from torque
wrench after “click”.
8. Dial torque setting to lowest point on scale after
each use. Also, dial setting to lowest point when
storing torque wrench.
CALIBRATION: TW-5 and TW-6 Torque Wrenches
have moving parts that may require service after
extended use. The wrench may be returned to Park Tool
for inspection and recalibration at a reasonable charge.
Visit www.parktool.com or contact Park Tool at
651-777-6868 for additional information.
ACCURACY: The TW-5 and TW-6 are calibrated to be
accurate to +/-4%.
CARE: The TW-5 and TW-6 are precision tools and
should be treated with care. Store carefully to avoid
damage. Clean with a dry cloth. Water and solvents
should be avoided.
WARRANTY: Park Tool Company backs the TW-5 and
TW-6 Torque Wrenches with a one-year warranty.
TORQUE CONVERSION
TABLE AND FORMULAS: The TW-5 and TW-6
measure torque in Newton Meters, which is the force
of one Newton on a lever that is one meter long. A
table on each wrench can be used to quickly convert
from Newton Meters to Inch Pounds, another common
unit of measure. Conversion formulas for converting
Newton Meters to Foot Pounds, Inch Pounds, and
Centimeter Kilograms are listed below:
For additional information on torque concepts,
specifications, conversion tables, and torque
wrench use: www.parktool.com.
To Convert To Multiply by
Inch Pounds Foot Pounds 0.08333
Inch Pounds Newton Meters 0.113
Inch Pounds Centimeter Kilograms 1.1519
Foot Pounds Inch Pounds 12
Foot Pounds Newton Meters 1.356
Foot Pounds Centimeter Kilograms 13.825
Newton Meters Inch Pounds 8.85
Newton Meters Foot Pounds 0.7376
Newton Meters Centimeter Kilograms 10.2
Centimeter Kilograms Inch Pounds 0.8681
Centimeter Kilograms Foot Pounds 0.07233
Centimeter Kilograms Newton Meters 0.09807
TORQUE CONVERSION FORMULAS
N-M
5
9 3
7
11
Ratchet
Lever
Socket
Release
Curser
Scale
Window
Square
Head
Conversion
Table
Handle
Locking Ring
Lock
Unlock
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