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Alternators - MOTOROLA: Overhaul: Reassembly

  1. Clean bearing and inside of bearing hub. Support front housing, and using a suitable tool, apply sufficient pressure to outside race to seat bearing. Insert split ring washer in groove of hub.
    CAUTION: Do not compress washer with any object that can slip off and damage bearing seal.
  2. NOTE: Make certain split ring washer has been installed prior to assembling front housing and rotor.
    Fig 1: DISASSEMBLED ALTERNATOR (TYPICAL)
    G09358963Courtesy of NOT AVAILABLE
  3. Install fan and pulley spacer, key, fan and pulley. Use a 7/16" socket to fit inside race of rear bearing and apply pressure to drive bearing against shoulder of rotor shaft. Install flat fiber washers on positive diode attaching studs, and on 7 volt terminal (if equipped). Install stator into rear housing.
  4. Install plastic sleeves on all insulated terminals. Install flat fiber washers, metal flat washers and lock nuts. The 7 volt terminal (if equipped) has a polarizing blade. This blade is identified by a short protruding tab that prevents regulator harness from being installed on this terminal. Before tightening this terminal, check that diode wire end does not contact heat sink. Install the two terminal blades and tighten securely.
  5. Before installing rear housing, be sure slip rings are clean. Align scribe marks on front housing and stator assembly. Check that insulating washers are installed on regulator and battery post terminals. When equipped with 7 volt terminal, note that it also serves as a negative diode attaching stud. This is the only negative diode assembly that must be installed from rear housing. Install through bolts and tighten securely. Turn rotor and check for free movement.