SAFETY MESSAGES ADJUSTMENT OF TORQUE SETTINGS
MAINTENANCE AND SERVICE
WARNING! Read all safety warnings designated
by the -symbol and all instructions.
SAVE ALL WARNINGS AND INSTRUCTIONS
FOR FUTURE REFERENCE.
When using an extension or adapter
(increasing the effective length of
the torque wrench) the output torque
value will change. To calculate the
new torque output of the wrench,
use the following formula below.
A number of variables will affect
the accuracy of the above calculation:
• Length of adapter or extension
• Length of wrench
• Variations in hand position
on wrench
TA Torque exerted at
end of adapter
L Distance between square drive
and hand position
TW Wrench scale reading
A Length of adapter or extension
CAUTION – RATCHET HEAD! Ratchet mechanism
may slip or break if dirty, mismatched; if worn parts
are used; or if direction lever is not fully engaged.
Ratchets that slip or break can cause injury.
• An out of calibration torque wrench can
cause part or tool breakage
• Periodic re-calibration is necessary to
maintain accuracy
• Do not exceed rated torque as overtorquing
can cause wrench or part failure
• Do not use torque instrument to break
fasteners loose
• Do not use cheater extension on the handle
to apply torque.
• Broken or slipping tools can cause injury.
. The torque wrench’s internal mechanism is permanently
lubricated during assembly. Do not attempt to lubricate
the internal mechanism.
. Clean torque wrench by wiping. Do not immerse.
. Store torque wrench in protective case at its lowest torque
setting. Do not force handle below lowest setting.
. For more information or support, please call your local
HYTORC Representative or 1-800-FOR-HYTORC
(1-800-367-4986), or please visit us at HYTORC.com.
A. To unlock the handle, hold tube and pull lock ring back,
allowing handle to turn clockwise (CW) or counter-
clockwise (CCW).
B. Set wrench to desired torque as follows:
EXAMPLE: 64 ft.-lbs.
. Keep slight rearward pull on lock ring during all
adjustments
. Line up thimble edge with the “60” graduation cross line,
and “0” with the vertical line. Torque wrench is now set to
60 ft.-lbs. (See Figure 1 below.)
. Turn handle and set thimble graduation to “4” on vertical
line. Torque wrench is now set to 64 ft.-lbs. (See Figure 2
below.)
All users and bystanders should always wear
safety goggles.
FIGURE FIGURE
. Lock handle by releasing back pressure on lock ring until
it clicks and handle doesn’t turn.
. To torque fastener, keep hand centered on the grip handle.
Apply a slow and steady force in the desired direction until
a click/impulse is heard or felt. Stop pulling and allow the
torque wrench to reset. (See Figure 3 above right.)
L
Major
Graduations Lock Ring
Minor
Graduations
Grip
Handle
Thimble Edge
Unlock to
Set Torque
USE OF EXTENSIONS AND ADAPTERS
TW
TA
A
A
FIGURE
Apply
Force
RELEASE
FORCE TO RESET
