Test For Shorts; Cleaning Commutator; Field Tests; Test For Open Circuit - Mercury BRAVO Service Manual

SERVICE MANUAL NUMBER 28

Test for Shorts

1. Check the armature on a growler (follow the growler manufacturers instructions). Re-

Cleaning Commutator

1. Clean the commutator with "00" garnet grit sandpaper. DO NOT use emery paper.
2. Check the gaps between the commutator bars for material. Remove material if present.

Field Tests

Test for Open Circuit

1. Connect the ohmmeter between the field brush lead and the BLUE/WHITE lead.
2. Zero ohms indicated (full continuity) - Field OK.
90-863160 MAY 2000
place the armature if it has a short.
a
b
a - Commutator
b - Gap
a - Ohmmeter Lead - Connected to Brush Lead
b - Ohmmeter Lead - Connected to BLUE/WHITE Lead
Zero ohms not indicated (no continuity) - Replace field assembly.
a
b
OILDYNE TRIM PUMP
22647
22644
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