18 03540598_ed12
15. Remove the Piston Ring (55) from the Piston.
16. Press the Clutch Spring Cup (50) down and remove the Clutch
Spring Cup Retainer (49).
17. Remove the Clutch spring Cup and Clutch Spring (51).
18. Remove the two Clutch Jaws (52).
19. Remove the Front Drive Gear Bearing (30), Drive Gear Cup (46),
Drive Gear Lock Washer (35), Drive Gear Screw Ring (37) and Drive
Gear Screw (34).
20. Using a screwdriver, remove the large Drive shaft Bearing
Retainer (53).
21. Press the Rear Drive Shaft Bearing and Drive Shaft (57) out of
the Piston. If the Rear Drive Shaft Bearing needs to be replaced,
proceed as follows:
Using a small chisel, cut and remove the small drive shaft
bearing retainer (53) in the Drive shaft.
Press the Rear Drive Shaft Bearing (58) o the Drive shaft.
22. Place the Gear Case (28) on a workbench.
23. Using retaining ring and working through the access holes in the
gear web, remove the Drive Gear Bearing Retainer (32). Refer to
Dwg. TPD1170.
32
28
(Dwg. TPD1170)
24. Pull the Drive Gear (29) out of the Gear Case.
NOTICE
Do not disassemble the Drive Gear and Clutch parts of Series
ST900 Turbine-Powered Starters. If the Drive Gear Shaft is
defective, install a new or factory-rebuilt unit.
25. Using retaining ring pliers, remove the Drive Gear Shaft Bearing
Retainer(33).
26. Remove the Rear Drive Gear Bearing (31) from the Drive Gear.
Inertia Models:
1. Remove the eight Drive Housing Cap Screws (40) and Lock
Washers (41).
a.
b.
2. Tap the Drive Housing (38) with a plastic hammer to help
dislodge it from the Gear Case Cover (32). Remove the Drive
Housing (38) from the Starter Drive (36). Refer to Dwg. TPD1168.
41
40
32
38
(Dwg. TPD1168)
3. Place the Drive Housing in an arbor press, bearing end up. Using
a pressing bar, remove the Drive Housing Bearing (39) from the
Drive Housing.
4. Using a screwdriver, displace the locking spring and remove the
screw holding the Starter Drive (36) to the Drive Gear Shaft.
5. Slide the Starter Drive o the Drive Gear Shaft.
6. Remove the two Drive Gear Keys (37) from the Drive Gear Shaft.
Refer to Dwg. TPD1171.
32
37
36
(Dwg. TPD1711)
7. Remove the Gear Case (32) from the Gear Case (38).
8. Remove the Drive Housing O-Ring (35) and the Gear Case Cover
O-Ring (33) from the Gear Case Cover.
9. Pull the Drive Gear (29) out of the Gear Case.
10. Remove the Rear Drive Gear Bearing (31) and the Front Drive
Gear Bearing (30) from the Drive Gear.
Assembly
General Instructions (refer to lubrication and torque
drawing).
1. Always press on the inner ring of a ball-type bearing when
installing the bearing on a shaft.
2. Always press on the outer ring of a ball-type bearing when
pressing the bearing into a bearing recess.
3. Whenever grasping a starter or part in a vise, always use
leather-covered or copper-covered vise jaws. Take extra care with
threaded parts or housings.
4. Except for bearings, always clean every part and wipe every part
with a thin lm of oil before installation.
5. Check every bearing for roughness. If an open bearing must be
cleaned, wash it thoroughly in a clean, suitable, cleaning solution
and dry with a clean cloth. Sealed or shielded bearings should
never be cleaned. Work grease thoroughly into every open
bearing before installation.
6. Apply a lm of O-Ring lubricant to all O-Rings before nal
assembly.
Assembly of the Gear Case and Drive Housing
Pre-Engaged Models:
1. Place the Drive Gear Bearing Retainer (32) over the rear end of the
Drive Gear.
2. Using an arbor press, press the Rear Drive Gear Bearing (31) onto
the rear end of the Drive Gear.
3. Using a plastic Hammer, seat the Rear Drive Gear Bearing into the
Gear Case by tapping the opposite end of the Drive Gear.
4. Using retaining ring install the Drive Gear Shaft Bearing
Retainer (33).
5. Using retaining ring pliers and working through the access holes
in the gear web, install the Drive Gear Bearing Retainer. Refer to
Dwg. TPD1170.
6. Lubricate the Drive Gear with approximately 8 0z. (240ml) of
Ingersoll Rand No. 130 lubricant.
7. Press the Rear Drive Shaft Bearing (58) onto the Drive Shaft.
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