Trouble Shooting Charts - Onan MJA Series Service Manual

72
STARTING SYSTE M
TROUBLE-SHOOTING CHART 7 (Cont.)
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,
Replace bearings.
f
(cont.)
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Slo"w starter "
!Worn bearings.
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Burned solenoid contacts.
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Replace.
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Open or shorted field
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windings.
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Replace windings.
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!
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Battery discharged Defective charging circuit See Sect 6 · 1
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Defective stArting circuit Check starter circuit
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J.
"
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Adjust starting pro­
cedures, check for
causes of hard starting
Excessive use of starter
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Dirt and electrolyte on
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Clean battery top.
constant drain.
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top of battery causing
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Replace.
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Defective battery.
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Defective batter:y"!, Hardened plate::; (sulfation)
due to low charge after
long period.
Replace battery, check
new battery charge
Shorted cells. condition at frequent
intervals.
Loss of active material.
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Broken terminals.
Starter won't
Defective ring gear or Replace ring gear or
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engage flywhee 1
1\ pinion.
pinion.
L
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Pinion clearance too great Adjust pinion clear ­
(early models only).
ance (Fig3.S.D).
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" Incorrect starter position
Adjust position with
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(early models only);
shims, Sect 3. S. 5.
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t -
When a battery fails, don't be satisfied just replacing it. Findthe
cause of the failure and make the necessary repairs.