TM-9-2920-242-35
STARTER, ENGINE ELECTRICAL, ASSEMBLY MODEL 1113943, 1113904 AND 1113944
TECHNICAL MANUAL; DIRECT SUPPORT, GENERAL SUPPORT AND DEPOT MAINTENANCE INCLUDING REPAIR PARTS
SEPTEMBER 1964
TM-9-2920-242-35 - Page 50 of 110
(3)
(4)
(5)
(6)
(7)
Remove solenoid lead assembly con-
necting battery switch terminal stud and
battery solenoid terminal.
Connect a 24-volt battery supply to bat-
tery solenoid terminal and motor sole-
noid terminal.
Momentarily hold a jumper lead from
the motor switch terminal stud to the
motor solenoid terminal. The pinion
will now shift into cranking position and
remain so until the battery is discon-
nected.
Push pinion back toward armature to
take up slack movement.
Remove inspection plug and gasket (B
and A, figure 7, step 1) and measure
the distance between pinion and drive
housing and adjust clearance to 23/64 ±
1/32-inch by turning shaft nut (fig. 38).
FIGURE 38. ADJUSTING DRIVE CLUTCH
PINION CLEARANCE.
b. Perform pinion block check as described
below.
(1) Connect a test light or other continuity
checker between the battery switch ter-
minal stud and motor switch terminal
stud.
(2)
(3)
Connect one of the posts of a 24-volt
battery to the battery solenoid terminal.
Connect the other battery post to the
motor solenoid terminal.
Place a 1-1/64-inch spacer block (fig.
39) between the pinion and drive housing
and momentarily hold a jumper lead
from the motor switch terminal stud to
the motor solenoid terminal. The pinion
will now shift against the spacer and
remain so until the jumper lead is dis-
connected.
FIGURE 39. PINION BLOCK TEST.
(4)
(5)
(6)
An open circuit should be indicated be-
tween the battery switch and motor
switch terminals. If continuity exists,
decrease the pinion clearance (a above)
to the minimum limit of 21/64-inch and
then recheck to make sure an open cir-
cuit now exists.
Disconnect battery and test equipment
and install motor field connector, ground
lead, and solenoid lead.
Install plug and gasket.
41
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