Disassembly Procedure
Start By:
- Remove the alternator. Refer to Disassembly and Assembly, "Alternator - Remove" for the machine that is being serviced.
Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
Procedure for the 34-SI
- Remove the pulley nut, the washer, the pulley, and the fan.
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Illustration 1 | g00651141 |
- Remove 4 screws (1). Remove plate (2) .
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Illustration 2 | g00651151 |
- Remove 4 terminal studs (3) .
Note: Not all of the alternators will have 4 terminals.
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Illustration 3 | g00651154 |
- Remove 2 insulated screws (4). Remove 2 leads (5). Remove the "I" terminal strap (6) .
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Illustration 4 | g00651157 |
- Remove 3 screws (7). Remove "R" terminal strap (8). Remove 3 leads (9).
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Illustration 5 | g00651162 |
- Remove diode trio (10) .
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Illustration 6 | g00651167 |
- Remove 2 insulated screws (11) .
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Illustration 7 | g00651197 |
- Remove nut (12). Remove lead (13). Remove the insulated ground lead (14) .
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Illustration 8 | g00651204 |
- Remove screw (15). Remove regulator (16) .
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Illustration 9 | g00651211 |
- Remove two screws (17). Remove capacitor (18) .
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Illustration 10 | g00651213 |
- Remove rectifier bridge (19) .
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Illustration 11 | g00651362 |
Typical Example |
Note: Do not damage exposed stator windings or field windings. Bumping the windings or scraping the windings may break the insulation. Broken insulation may create a short circuit or a ground.
Note: Some models have a fourth mounting lug.
- Remove 4 bolts (21). Carefully separate housing (22) from housing (20) .
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Illustration 12 | g00651365 |
Typical Example |
- Pull apart stator (23) and housing (20). Guide the stator leads and the grommet through the hole as the stator is removed from housing (20) .
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Illustration 13 | g00651219 |
- Remove 4 screws (25). Remove the coil and support (24) from housing (20). Guide the field leads through the hole as the coil is removed from the housing. Pry cap (26) from housing (20). This will expose the bearing for the rotor.
Note: Do not strike the bearing. Shocks from striking the housing can cause damage.
- Wipe the excess grease from the bearing well. Press the bearing into the housing. Remove the inner race.
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Illustration 14 | g00651367 |
Typical Example |
- Remove 4 screws (27) from housing (22) .
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Illustration 15 | g00651391 |
Typical Example |
- Lift rotor (28) and bearing (29) from housing (22) .
- Pull bearing (29) from rotor (28) .
- Pull retainer (30) from rotor (28) .
- Pull collar (31) from rotor (28) .
Procedure for the 30-SI
- Remove the pulley nut, the washer, the pulley, and the fan.
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Illustration 16 | g00651125 |
- Remove 4 screws (1). Remove plate (2) .
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Illustration 17 | g00651225 |
- Remove 2 insulated screws (3). Remove 2 leads (4) .
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Illustration 18 | g00651226 |
- Remove screw (8). Remove nut (6). Remove leads (5). Remove strap (7).
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Illustration 19 | g00651227 |
- Remove screw (9). Remove regulator (10) .
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Illustration 20 | g00651228 |
- Remove terminal (11) .
- Remove 3 nuts (13). Remove 3 leads (14) .
- Remove strap (12). Remove diode trio (15) .
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Illustration 21 | g00651232 |
- Remove screw (18). Remove nut (16) and slide terminal strap (17) out of the housing.
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Illustration 22 | g00651233 |
- Remove 2 screws (19). Remove rectifier bridge (32) .
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Illustration 23 | g00651234 |
- Remove screw (33). Remove capacitor (34) .
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Illustration 24 | g00651362 |
Typical Example |
Note: Do not damage exposed stator windings or field windings. Bumping the windings or scraping the windings may break the insulation. Broken insulation may create a short circuit or a ground.
- Remove 4 bolts (21). Carefully separate housing (22) from housing (20) .
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Illustration 25 | g00651365 |
Typical Example |
- Pull apart stator (23) and housing (20). Guide the stator leads through the hole as the stator is removed from housing (20) .
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Illustration 26 | g00651235 |
- Remove 4 screws (25). Remove the coil and support (24) from housing (20). Guide the field leads through the hole as the coil is removed from the housing. Pry cap (26) from housing (20). This will expose the bearing for the rotor.
Note: Do not strike the bearing. Shocks from striking the housing can cause damage.
- Wipe the excess grease from the bearing well. Press the bearing into the housing. Remove the inner race.
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Illustration 27 | g00651367 |
Typical Example |
- Remove 4 screws (27) from housing (22) .
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Illustration 28 | g00651391 |
Typical Example |
- Lift rotor (28) and bearing (29) from housing (22) .
- Pull bearing (29) from rotor (28) .
- Pull retainer (30) from rotor (28) .
- Pull collar (31) from rotor (28) .