TM 5-4320-300-145-6. STARTER MOTOR ASSEMBLY (CONT)Location/ItemActionRemarksSYMPTOMREASONPinion rotates slowlyDamaged bearings, poor connections, dirty or damaged com-mutator, damaged leads.Pinion does not rotateFrozen bearings, poor contact between brushes and commuta-tor, field terminal shorted out to starter motor frame.DISASSEMBLY2. ScrewsRemove screws that secure commutator end frame.3. End frameRotate commutator end frame on end of arma-and bushingture shaft after pulling end frame and armatureout and away from motor frame. If end framecannot be pulled loose from armature shaft, orshaft will not rotate in bushings, bushing isfrozen and must be replaced. Remove washerfrom commutator end of shaft.4. Brushes andRemove pins, then remove brushes and leads,brush com-brush holders, and brush components.ponents5-15
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