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CAUTION
●Before starting the unit, check that the output square drive rotation
direction and the clutch direction conform.
Failure to operate the clutch dial properly may lead to damage to or
breakdown of the unit, or injury to the user.
16-7.Calculation of Input Torque
Target input torque of ratchet handle or torque wrench can be calculated by
method below.
【 How to calculate input torque 】
①
Calculate from formula
Output torque
＝
Input torque
×
Magnification
②
Calculate from magnification diagram (on P ) or rating plate
《 Example 》
Super Power Wrench：P150A Target torque： 1000 N･m
①
In the case, Magnification for 1000N・m is 23.0 on the Inspection Certificate.
Output torque
＝
Input torque
×
Magnification
Input torque
=
Output torque
＝
1000
≒ 43.5 N･m
Magnification
23.0
②
Thus,
43.5 N･m
is required for input torque to obtain 1000N･m
