TRANSMISSION AR 2270923 - Caterpillar

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(5) Bolts
On 3406E generator sets, the drive end housing must be removed. Attach a hoist to the drive end housing. Remove the bolts (5) that attach the drive end housing to the generator. Remove the drive end housing.
Illustration 8 g00616086
800 Frame Two-Bearing Generator (6) Bolts (7) Drive end housing
For two-bearing generators, bolts (6) which fasten drive end housing (7) to the generator must be removed. The drive end housing remains with the rotor shaft. Remove the bolts.
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400 Frame Single Bearing Generator (8) Protective strip (9) Drive coupling
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800 Frame Two-Bearing Generator (9) Drive coupling
During removal of the generator, the rotor assembly must not contact the stator assembly. If the rotor assembly contacts the stator assembly, the windings can be damaged.
Put protective strips (8) of cardboard, plastic or curved sheet metal between the rotor assembly and the stator assembly. The pieces should be as long as the rotor assembly. These pieces protect the rotor and these pieces protect the stator from damage during rotor removal. For two-bearing generators, put a mark on drive end housing (7) and the generator housing. This will ensure proper alignment during installation.
Attach a hoist to drive coupling (8). Remove the rotor assembly from the stator assembly.Installation Procedure
Start By:
Place the generator in a vertical position. Ensure that the drive end is oriented upward.
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400 Frame Single Bearing Generator (8) Protective strip (9) Drive coupling
Put protective strips (8) of cardboard, plastic or curved sheet metal between the rotor assembly and the stator assembly. The pieces should be as long as the rotor assembly. During installation of the rotor, these pieces protect the rotor from damage. These pieces also protect the stator from damage.
Attach a hoist to drive coupling (9). Lower the rotor assembly into the stator assembly.
For two-bearing generators, the drive end housing is attached to the rotor shaft. When the rotor was removed from the generator, an alignment mark was made on the drive end housing and the generator housing. Align these marks. Start the bolts that attach the drive end housing to the generator. Do not tighten the bolts.
There is a generator bearing on the exciter end of the rotor shaft. This bearing is retained in the generator end housing. The bearing is retained in the generator end housing by a bearing cap or the bearing is retained in the generator end housing by retaining bars.When the generator end housing is equipped with retaining bars, install the four bolts that fasten the retaining bars to the generator end housing. When the generator end housing is equipped with a bearing cap, install the necessary bolts that fasten the bearing cap to the generator end housing. If a bearing lube line is attached to the bearing cap, install the lube line.
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(6) Bolts (7) Drive end housing
On a two-bearing generator, tighten the bolts (6) that attach the drive end housing (7) to the generator.
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(5) Bolts
On a 3406E generator set, install the drive end housing. Tighten bolts (5) .
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Place fan (4) in the drive