4821805 SPINDLE Caterpillar parts
Rating:
Alternative (cross code) number:
CA4821805
482-1805
4821805
CA4821805
482-1805
4821805
Weight: 405 pounds 183 kg.
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Information:
Illustration 1. 8N-7152 Coupling Group.Reference Dimensions:
Generator Pilot Nose Diameter ... 129.972 to 129.959 mm (5.1170 to 5.1165 in).
Flywheel Bore For Generator Pilot ... 130.005 .015 mm (5.1183 .0006 in).
GENERATOR ALIGNMENT INFORMATION
Some SR4 generators and non-Caterpillar generators do not pilot into the flywheel bore. To properly align these generators the following procedure should be used:
Illustration 2. Generator Alignment.1. Check the runout between the generator housing and the rotor shaft. See Illustration 2. Mount the base of the dial indicator to the generator housing. Place the contact point of the dial indicator on the rotor shaft within one inch of the hub. Make sure the surface of the rotor shaft is smooth in the measurement area. The specified TIR is 0.075 mm (.003 in).
Illustration 3. Generator Alignment.2. Check the runout between the flex plates and the rotor shaft. See Illustration 3. The flex plates must be bolted to the rotor hub and the engine flywheel. Fasten the base of the dial indicator to one of the flex plate flywheel bolts. Place the contact point of the dial indicator on the rotor shaft within one inch of the hub. Make sure the surface of the rotor shaft is smooth in the measurement area. The specified TIR is 0.250 mm (.010 in).
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