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6D3-4 SD STARTER MOTORS
DISASSEMBLY
DISASSEMBLY OF THE SD-300
STARTER MOTOR
If the motor does, not perform to specifications, it may
need to be disassembled for further testing Of the com
ponents. Normally the starter motor should be disas
sembled only so far as is necessary to make repair or
replacement of parts.. As a precaution, it is suggested
that safety glasses Be worn when disassembling or
assembling the starter motor.
FIELD FRAME
Disassemble (Figure 4)
• Clean the outside of the starter housing, removing
grease, oil, mud, etc.
• Scribe marks ic-stiow the relationship of the drive
housing, field frame, and end frame to aid in
assembly.
1. Field coil strap (51) from the solenoid motor termi
nal (figure 5).
2. Through bolts (58).
3. Nut and copper washer from the grounding screw
on the field frame*
I ,
4. End frame (41).
5. Brake washer (34) from the commutator end of the
armature shaft.
:
i
'
1
> i ’ ■
6. Field frame (57) from the drive housing (31) and
the armature assembly (9).
DRIVE END
*
Disassemble (Figure 4)
1. Armature from the drive housing by tilting the
armature to disengage the shift lever fingers (1)
from the drive collar (figure 6).
2. Drive assembly (32) from the armature shaft (9) as
follows:
A. Remove the thrust collar (17) from the armature
.•' shaft. ;■
B. Drive the stop collar (39) away from the pinion
: stop retainer ring (37) by sliding a metal cylin
der onto the armature shaft and with d hammer,
striking the metal cylinder against the stop col
lar (figures 7 and 8).
C. Remove the pinion stop retainer ring from the
groove in the armature shaft. If the retainer ring
is distorted during removal, it must be replaced.
D. Slide the drive assembly and the stop collar off
the armature shaft.
3. Screws (36) attaching the solenoid (3) to the drive
housing.
4. Lever shaft (43), nut and washer (44) attaching the
shift lever to the drive housing.
1. Lever
2. Plunger
3. Solenoid
4. Bushing
5. Spring
8. Coil
9. Armature
11. Grommet
17. Thrust Collar
31. Housing
32. Drive Assembly
33. Brushes
34. Brake Washer
35. Bolt
36. Screw
37. Retainer Ring
38. Holder
39. Pinion Stop Collar
40. Pin
41. Frame
43. Lever Shaft
44. Nut and Wasfaer
45. Lead
46. Insulator
47. Shoe
48. Plate
57. Field Frame
58. Through Bolts
F9321
Figure 4—SD-300 Components
Summary of Contents for C Series 1993
Page 1: ......
Page 12: ...OA 6 GENERAL INFORMATION Figure 11 Allison Transmission I D Location ...
Page 44: ...3B1A 2 POWER STEERING GEAR UNIT REPAIR Figure 1 710 Power Steering Gear ...
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Page 75: ...3B3 2 POWER STEERING COMPONENTS TRW ROSS ...
Page 121: ...5H 16 AIR BRAKE VALVES Figure 21 Bendix Proportioning Relay Valve Components ...
Page 147: ...5J 10 AIR COMPRESSOR AND GOVERNOR 286 F9051 Figure 18 Bendix BX 2150 Compressor Components i ...
Page 204: ...MODEL 295 TBI UNIT 6C1 3 F7973 Figure 3 Model 295 TBL Unit ...
Page 251: ...6D4 6 37 MT STARTER MOTORS V3022 Figure 8 37 MT Components ...