Specifications

MARATHONNORCO AEROSPACE, INC.
NICKEL-CADMIUM AIRCRAFT BATTERIES
24-34-00
Page 301
JUL 11/14
3.0 TORQUING REQUIREMENTS
Verify torque on every intercell connection starting with cell 1 and working sequentially through the
last cell. Verify torque on cell connections to main battery connector.
TABLE 2
BATTERY OR
CELL TYPE
THREAD
SIZE
SOCKET
HEAD CAP
SCREW
TORX
SCREW
HEX NUT
ACROSS
FLATS
TORQUE
(INCH LBS.)
TO
TIGHTEN
3H120
#10-32
5/16”
15-18
5H120
#10-32
5/16”
15-18
10H120
5/16”-24
1/2”
20-25
10HE120
#8-32
9/64”
30-35
12M220
5/16”-24
1/2”
20-25
12H120
#8-32
9/64”
30-35
14M220
#8-32
9/64”
30-35
15M220
#8-32
9/64”
30-35
15SP100
#8-32
9/64”
30-35
17H100
#10-32
5/32”
35-50
17SP100
#10-32
5/32”
T-25
35-50
18H120
#10-32
5/32”
T-25
30-35
20H120
#10-32
5/32”
35-50
20SPE100
#10-32
5/32”
35-50
24M220CR
#10-32
5/32”
35-50
24ME220C
#10-32
5/32”
35-50
24H120
#10-32
5/32”
35-50
24H100
#10-32
5/32”
35-50
24SP100
#10-32
5/32”
T-25
35-50
25SP100
#10-32
5/32”
35-50
28SP100
1/4”-28
3/16”
T-30
100-125
36M220
#10-32
5/32”
35-50
36H120
#10-32
5/32”
35-50
38H100
1/4”-28
3/16”
T-30
100-125
38SP100
1/4”-28
3/16”
T-30
100-125
40SP100
1/4”-28
3/16”
T-30
100-125
40SP100L
1/4”-28
3/16”
T-30
100-125
44SP100
1/4”-28
3/16”
T-30
100-125
44SP100L
1/4”-28
3/16”
T-30
100-125
46SPE100
1/4”-28
3/16”
T-30
100-125
52H120C
1/4”-28
3/16”
T-30
100-125
65H132
1/4”-28
3/16”
T-30
100-125
81H120
1/4”-28
3/16”
T-30
100-125
All other hardware should be torqued in accordance with FAA document AC.43.13 (Aircraft
Inspection and Repair)