22
TM 5-3805-291-23-2
TORQUE LIMITS
SCOPE
This work package lists standard torque values and provides general information for applying torque. Special torque val-
ues and tightening sequences are indicated in maintenance procedures for applicable components.
GENERAL
1.
Always use torque values listed in (Tables 1 thru 6) when maintenance procedure does not show a specific torque value.
a.
(Tables 1 thru 3) provides torque limits for SAE standard fasteners.
b.
(Tables 4 thru 6) provides torque limits for metric fasteners.
10 percent.
2.
Unless otherwise indicated, standard torque tolerance shall be
3.
Torque values listed are based on clean, dry threads. Reduce torque by 10 percent when engine oil is used as lubricant. If
new plated capscrews are used, reduce torque by 20 percent.
4.
If maintenance procedures do not specify a tightening order, use the following guides:
a.
Unless otherwise specified, lubricate threads of fasteners with oil (OE/HDO-10 or OEA-30).
b.
When tightening fasteners above 30 lb-ft (41 Nm), use torque pattern only to 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
8
5
12
10
4
3
11
9
6
7
2
CIRCULAR TORQUE PATTERN
8
53 1246
9
7
STRAIGHT TORQUE PATTERN