Disassembly Procedure
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Table 1
| Required Tools |
| Tool |
Part Number |
Part Description |
Qty |
| A |
1P-1854 |
Retaining Ring Pliers |
1 |
| B |
- |
Plate
51.0 by 102.0 by 6.0 mm (2.00 by 4.00 by 0.25 inches) |
2 |
| C |
1P-1857 |
Retaining Ring Pliers |
1 |
| D |
- |
Allen Wrench (5/16 inch) |
1 |
Start By:
- Remove the air starting motor. Refer to Disassembly and Assembly, "Air Starting Motor - Remove".
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| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
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Note: Refer to Disassembly and Assembly, "General Information (Reference Material)" for more information.
Note: Ensure that there is a complete set of new gaskets, vanes, seals, and O-ring seals before the air starting motor is disassembled.
Note: The illustrations that follow show a different orientation of the components from the air starting motor that was removed from the engine. Use the procedures that are given. Maintain the alignment of the components of the air starting motor.
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| Illustration 1 | g00538952 |
- Remove elbow (1) and the gasket from cover assembly (2) .
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| Illustration 2 | g00538959 |
- Remove silencer (4) and the gasket from motor housing (3) .
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| Illustration 3 | g00538960 |
- Use a paint stick to mark the housing in order to show the position of motor housing (3) in relation to gear case (7) for assembly. Remove bolts (5) in order to remove gear case (7) and drive housing (6) as a unit from motor housing (3) .
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| Illustration 4 | g00538961 |
- Use Tooling (A) in order to remove ring (9) from drive gear (8) .
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| Illustration 5 | g00538963 |
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Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened. |
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Note: Air starting motors for standard engine rotation rotate clockwise when the motors are viewed from the pinion end of the starting motor. Bolt (10) for a clockwise rotation starting motor has left hand threads.
Note: Air starting motors for reverse engine rotation rotate counterclockwise when the motors are viewed from the pinion end of the starting motor. Bolt (10) for a counterclockwise rotation starting motor has right hand threads.
- Remove bolt (10) and washer (11) in order to remove drive pinion (12), the sleeve, and the spring from the end of the drive shaft.
- Use a paint stick to mark the position of drive housing (6) in relation to gear case (7) for assembly. Remove bolts (13) and drive housing (6) from gear case (7) .
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| Illustration 6 | g00538964 |
- Remove O-ring seal (14) from drive housing (6) .
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| Illustration 7 | g00538965 |
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The piston holds a spring under compression. In order to prevent personal injury, carefully remove the ring that holds the piston in place. Release the tension on the spring slowly. |
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Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened. |
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- Install Tooling (B) between drive gear (8) and piston (15). Use a suitable press in order to compress the piston return spring. Remove the ring that holds the drive shaft assembly and the piston in drive housing (6) .
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| Illustration 8 | g00538966 |
- Slowly release the suitable press in order to remove the force of piston return spring (17). Remove Tooling (B) from the drive gear and piston (15). Remove ring (16) from the piston. Remove the drive gear, the piston, and the drive shaft assembly as a unit from drive housing (6). Remove piston return spring (17) from the drive housing.
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| Illustration 9 | g00538968 |
- Use Tooling (D) in order to loosen the drive gear bolt until the threads are free. Remove drive shaft assembly (18) and piston (15) as a unit from drive gear (8) .
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| Illustration 10 | g00538969 |
- Remove bulkhead (19) from piston (15) .
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| Illustration 11 | g00538970 |
- Remove O-ring seals (20) from bulkhead (19) .
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| Illustration 12 | g00538971 |
- Remove ring (21) from piston (15). Remove the piston from drive shaft assembly (18) .
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| Illustration 13 | g00538972 |
Note: Later air starting motors will not have bumper (23) .
- Remove O-ring seal (24), bumper (23), and seal (22) from piston (15) .
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| Illustration 14 | g00538973 |
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Personal injury can result from parts and/or covers under spring pressure. Spring force will be released when covers are removed. Be prepared to hold spring loaded covers as the bolts are loosened. |
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- Remove ring (33), cup (32), spring (31), driven clutch jaw (30), driving clutch jaw (29), bearing (28), washer (27), lockwasher (26), and bolt (25) from drive shaft assembly (18) .
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| Illustration 15 | g00539088 |
Note: When ring (34) is removed, the ring must be replaced by a new ring.
- Remove ring (34) in order to remove bearing (35) from drive shaft assembly (18) .
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| Illustration 16 | g00539089 |
- Use Tooling (C) in order to remove ring (37). Remove bearing (36) from gear case (7) .
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| Illustration 17 | g00539091 |
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| Illustration 18 | g00539092 |
Note: Later air starting motors will not have bumper (38) and backup ring (39) .
- Remove bumper (38) and backup ring (39) from drive housing (6) .
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| Illustration 19 | g00539094 |
- Remove seat (40) and bearing (41) from drive housing (6) .
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| Illustration 20 | g00539144 |
- Remove seal (42) from drive housing (6) .
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| Illustration 21 | g00539145 |
- Use a paint stick to mark the position of cover assembly (2) in relation to motor housing (3) for assembly. Remove the cover assembly and the O-ring seal from the motor housing.
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| Illustration 22 | g00539147 |
- Remove bolt (44) in order to remove rotor pinion (43) from the rotor shaft.
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| Illustration 23 | g00539149 |
- Loosen bolt (46). Remove nut (45) from the rotor shaft.
- Remove bearing (47) from end plate (48) .
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| Illustration 24 | g00539150 |
- Remove O-ring seal (49) and end plate (48) from the end of the rotor.
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| Illustration 25 | g00539151 |
- Remove vanes (50) from rotor (51) .
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| Illustration 26 | g00539157 |
- Remove rotor (51) from motor housing (3) .
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| Illustration 27 | g00539179 |
- Use a suitable press in order to remove bearing (52) and end plate (53) from rotor (51) .
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| Illustration 28 | g00539180 |
- Remove bearing (52) from end plate (53) .
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| Illustration 29 | g00539181 |
- Remove washers (54) from end plate (53) .
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| Illustration 30 | g00539182 |
- Remove O-ring seals (55) from cylinder (56) .
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| Illustration 31 | g00539183 |
- Remove cylinder (56) from motor housing (3). Remove the remainder of the O-ring seals from the cylinder.
