TM-9-2815-225-34-P
ENGINE, DIESEL: 6 CYLINDER IN-LINE TURBOCHARGED, CUMMINS MODEL NTC-400
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JULY 2005
TM-9-2815-225-34-P - Page 498 of 736
TM 9-2815-225-34&P
0053 00
0053 00-6
TORQUE LIMITS (Contd)
CONVERSION FORMULA
NOTE
The length of the torque wrench is
measured from the center of the handle
to the center of the drive. The length of
the adapter is measured from the center
of the drive to the center of the wrench.
In this example, the torque wrench measures 22 in. (55.9 cm) and the adapter is 3 in. (7.6 cm). The
required torque is 19 lb-ft (25.8 N
•
m).
Example:
=
Corrected
reading
17 lb-ft (23.1 N
•
m)
=
Corrected
reading
19 lb-ft (25.8 N
•
m) ÷
1.14
=
Corrected
reading
19 lb-ft (25.8 N
•
m)
÷
25 in. (63.5 cm)
22 in. (55.9 cm)
=
Corrected
reading
19 lb-ft (25.8 N
•
m)
÷
22 in. (55.9 cm) + 3 in. (7.6 cm)
22 in. (55.9 cm)
Corrected dial or scale readings are determined by the use of the following formula:
=
Corrected
reading
Required
torque value
Length of torque wrench + Length of adapter
Length of torque wrench
÷
Length of
adapter
3 in. (7.6 cm)
Length of
torque wrench
22 in. (55.9 cm)
TORQUE WRENCH ADAPTERS
Some tasks require the use of a torque wrench adapter when the nut or screw cannot be reached with
a regular socket on the end of the torque wrench. These adapters add to the overall length of the torque
wrench and make the dial or scale reading less than the actual torque applied to the nut or screw. To
prevent overtorquing and damage to equipment, calculate correct dial or scale reading using the following
conversion formula.
Back to Top
