TM 5-3895-374-24-1
M-8 Check, and tighten if required, all bolts at the bus
connection points indicated by a hexagon in the
adjacent figures Although one specific type of
compartment is shown In these figures, it is
intended that similar maintenance be performed
on all incoming main units. Maximum torque
values, shown in the table below, should be used
If a torque wrench Is not available and
connection
requires
tightening,
carefully
tightening bolt until Bellevllle conical washer
appears flat and then back off slightly (not more
than 1/8 turn).
Bolt Head DiameterBolt Diameter
Torque In
Inches
Inches
Pound-Inches
7/16.
1/4
70-90
1/2
5/16
145-160
9/16.
3/8
250-270
3/4
½
500-550
TYPICAL SPLICE CONNECTION
M-9
Check, and tighten if required, all main lug set
screws holding incoming conductors in main
lugs. Recommended torque values listed below
should be used for both aluminum and copper
conductors.
Wire
American Wire Gauge
Torque in
or MCMPound-Inches
000-200
200
250-400
250
500-750
300
M-10
Inspect all insulators, braces, and barriers.
Replace any that show signs of arcing damage,
tracking or excessive heat.
(page 3-133)
