STARTING SYSTEM — Starter — Brush Holder / Pole Piece / Armature Check

EL-22prose procedure

Brush holder shown for both starter variants (M1T71481 fig1, S114-523 fig2).

Continued from EL-21

Brush Check (Cont'd)

BRUSH HOLDER

Brush holder — insulation + free-movement check

1
Perform insulation test between brush holder (positive side) and its base (negative side). Continuity exists → Replace.
2
Check brush to see if it moves smoothly. If brush holder is bent, replace it; if sliding surface is dirty, clean.

Pole Piece Check

NOTE

Pole piece is secured to yoke by bonding agent. Check pole piece to see that it is secured to yoke and for any cracks. Replace malfunctioning parts as an assembly. Holder may move slightly as it is only inserted and not bonded.

Armature Check

Armature — continuity + insulation tests

1
Continuity test (between two segments side by side). No continuity → Replace.
2
Insulation test (between each commutator bar and shaft). Continuity exists → Replace.

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