TM 5-1940-277-34
STARTER MOTOR REPAIR INSTRUCTIONS
(Continued)
LOCATION
ITEM
ACTION
REMARKS
14.
Springs
a.
Check for
(see chart
bending or
below)
breaking.
b.
Test for ten-
Use spring
sion strengths
resiliency
as follows:
tester.
c.
Replace if
outside limits.
SPRING
COMPRESSED LENGTH
TENSION
Lock spring (34)
0.375 in (9.53 mm)
1.69 to 1.94 lb
(0.765 to 6.878 kg)
Recoil spring (14)
1.313 in (33.35 mm)
26.5 to 29.5 lb
(12.0 to 13.39 kg)
Pinion spring (25)
1.469 in (37.3 mm)
9.81 to 10.19 lb
(oil sealed starter)
(4.4 to 4.6 kg)
Brush spring (11)
Raise to height of
6.0 to 7.5 lb
installed brush.
(2.7 to 3.4 Kg)
15. Armature (22)
Commutator (70)
a.
Clean dirty
Use crocus
or discolored
cloth.
surface.
b.
If badly
pitted or
grooved replace
armature.
16. Armature (22)
Armature (69)
a.
Remove burrs
Use honing stone.
Shaft
in lock ball
recesses (71)
if necessary.
2-211
