RING 5171157 - Caterpillar

Refer to exploded view, Figure HGA-6 for parts identification.The spool (22) and the housing (25), the commutator (34), and commutator ring (33), as well as the rotor (31B) and the stator (31A) are not separately replaceable because they are selectively fitted at the factory. If the spool or body need replacement, the complete HGA unit must be replaced. If the commutator or the commutator ring need replacement, both must be replaced as a matched set. If the rotor or stator need replacement, the complete rotor set (31) must be replaced. The pin in the end cover is not separately replaceable. If the pin or end cover need replacement, the end cover and pin assembly (38) must be replaced.