TM-9-2920-225-34
GENERATOR ASSEMBLY; PRESTOLITE AMA-5102UT; LEECE-NEVILLE 3002AC, 3002AD, 3002AE, 5504AA, 5504AB, 2184AC, 5300GP
TECHNICAL MANUAL; MAINTENANCE; DIRECT AND GENERAL SUPPORT LEVEL
FEBRUARY 1981
TM-9-2920-225-34 - Page 14 of 262
TM 9-2920-225-34
Table 1-1.
Standard Torque Specifications
USAGE
MUCH USED
MUCH USED
USED AT TIMES
USED AT TIMES
To 1/2-69.000
To 3/4-120,000
To 5/8– 140,000
150,000
(4850.7000)
(8436.0000)
CAPSCREW DIAMETER AND
(9842.0000)
(10545-0000)
MINIMUM TENSILE STRENGTH
To 3/4–64,000
To 1
– 115,000
To 3/4-133.000
PSI [KG/SQ CM]
(4499.2000)
(8084.5000)
(9349.9000)
To 1
–55.000
[3866.5000]
QUALITY OF MATERIAL
INDETERMINATE
MINIMUM
MEDIUM
BEST
COMMERCIAL
COMMERCIAL
COMMERCIAL
CAPSCREW BODY SIZE
TORQUE
TORQUE
TORQUE
TORQU E
(lNCHES)-(THREAD)
FT-LB [KG M ]
FT-LB [KG M]
FT-LB [KG M]
FT-LB [KG M]
1/4–20
5
[0.6915]
8
[1,1064]
10
[1.3830]
12
[1 .6596]
-2 8
6
[0.8298]
10
[1.3830]
14
5/16–18
[1.9362]
11
[1.5213]
17
[2.3511]
19
-2 4
[2.6277]
24
13
[1.7979]
19
[2.6277]
[3.3192]
27
3/8–16
18
[2 48941]
31
[4 2873]
[3.7341]
–2 4
34
[4.7022]
44
20
[2.7660]
35
[6.0852]
[4.8405]
49
7/16–14
28
[3.8132]
49
[6.7767]
[6.7767]
–2 0
55
[7.6065]
70
30
[4.1490]
[9.6810]
55
[7.6065]
78
1/2-1 3
39
[5.3937]
[10.7874]
75
[10.3725]
85
–2 0
[11.7555]
105 [14.5215 ]
41
[5.6703]
85
[11.7555]
120 [16.5960 ]
9/16–12
51
[7,0533]
110
[15.2130]
-1 8
120
[16.5960]
55
[7.6065]
155 [21.4365 ]
120 [16.5960 ]
5/8-11
170 [23.5110 ]
83
[11.4789]
150
[20.7450]
167
-1 8
[23.0961]
95
[13.1385]
170
210 [29.0430 ]
[23.5110]
3/4–10
240 [33.1920 ]
105 [14.5215 ]
270
[37.3410]
-1 6
280 [38.7240 ]
375 [51.8625 ]
115 [15.9045 ]
295
[40.7985]
7/8- 9
160 [22.1280 ]
395
420 [58.08601]
[54.6285]
440 [60.8520 ]
[24.2025]
435 [60.1605 ]
605 [83.67151]
[32.5005]
675 [93.3525 ]
590 [81.5970 ]
660 [91.2780 ]
–1 4
910 [125.8530 ]
250 [34.5750 ]
660 [91.2780 )
990 [136.9170 ]
1.
2
3
4.
Always use
the torque values listed above when specific specifications are not available
Note:
Do not use
above values in place
of those specified in the engine groups of this
manual, special attention
should be
observed in case
of
SAE Grade 6, 7 and 8 capscrews.
The above
iS based on use of clean and dry threads
Reduce torque
by
10%
when engine 0il is used
as a lubricant
Reduce torque by 20% if new plated capscrews are used
Caution: Capscrews threaded into aluminum may require reductions in torque of 30% or more, unless inserts are used.
TA 113439
1-4
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