7
USER GUIDE
USE OF EXTENSIONS AND ADAPTERS
When using an extension or adapter (increasing the effective lenght
of the torque wrench) the output torque value will change.
To calculate the new torque output of the wrench use the following
formula:
TA = Torque exerted at end of adapter
L
= Distance between square drive and hand position
TW = Wrench scale reading
A
= Lenght of adapter or extension
A number of variables including the lenght of the adapter or
extension, lenght of the wrench and variations in hand position on
the wrench will affect the accuracy of the above calculation.
TA
A
TW
L
TW =
TA x L
L + A
4.
Lock handle by releasing back pressure on lock-ring until it
clicks and handle doesn’t turn.
5.
To torque fastener, keep hand centered on the grip handle.
Apply a slow steady force in the desired direction until a
click/impulse is heard or felt.
Stop pulling and allow the wrench to reset.
APPLY FORCE
RELEASE
FORCE TO RESET
GB
