TB-9-3950-253-13-P
PALLETIZED LOAD SYSTEM TRUCK, M1075 and M1075A1 (PLS) AND HEAVY EXPANDED MOBILITY TACTICAL TRUCK, M1120, M1120A2, AND M1120A4 (HEMTT), ENHANCED CONTAINER HANDLING UNIT (E-CHU)
TECHNICAL BULLETIN; OPERATOR AND FIELD MAINTENANCE, INSTALLATION INSTRUCTIONS, AND REPAIR PARTS AND SPECIAL TOOLS LIST
JULY 2009
TB-9-3950-253-13-P - Page 671 of 704
0061-1
0061
TB 9-3950-253-13&P
FIELD MAINTENANCE
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TORQUE LIMITS
SCOPE
00061
This work package lists standard torque values and provides general information for applying torque. Special
torque values and tightening sequences are indicated in the maintenance procedures for applicable components.
GENERAL
00061
1.
Always use torque values listed in Tables 1 and 2 when a maintenance procedure does not give a specific
torque value.
a.
Table 1 provides torque limits for SAE standard fasteners.
b.
Table 2 provides torque limits for metric fasteners.
2.
Unless otherwise indicated, standard torque tolerance shall be
10 percent.
3.
Torque values listed are based on clean, dry threads. Reduce torque by 10 percent when engine oil is used as
a lubricant. Reduce torque by 20 percent if new plated capscrews are used.
4.
If the maintenance procedures do not specify a tightening order, use the following guides:
a.
Unless otherwise specified, lu
bricate threads of fasteners with OE/HDO-10 lubricating oil (WP 0057, Item 8).
b.
When tightening fasteners above 30 lb-ft (41 Nm), use the torque pattern but only tighten to 70 percent of
final value (multiply final value by 0.7). Repeat pattern until final value is reached.
c.
Tighten circular patterns using circular torque pattern and tighten straight patterns using straight torque
pattern.
1
5
12
3
9
7
2
6
11
4
10
8
CIRCULAR TORQUE PATTERN
STRAIGHT TORQUE PATTERN
9
7
5
3
1
2
4
6
8
4
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