Volvo Penta D65A MS Workshop Manual page 205

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Field coil
Testing for open circuits
1. If there is no continuity between the M terminal of
Overrunning Clutch
The clutch is in good condition if it rotates freely in
one direction when tumed by hand.
Check the pinion teeth for wear or damage. If they
are damaged, replace the pinion.
Brushes
Inspecting for wear
B
Brush height, mm [in.]
A
Assembly Standard ... 21–22 [0.83–0.87](A)
Service Limit ............. 13 [0.51](B)
Testing brush spring tension
Brush spring tension, N (kgf) [lbf]
Assembly Standard ... 39.23–49.03 (4.0–5.0 [9–11]
Service Limit ............. 39.23 (4.0 [9] maximum
Group 30 Electrical System
the field coil and the lead wire on the brush side,
replace the field coil.
IMPORTANT! Do not immerse the overrunning
clutch in cleaning solvent to clean it. Immersion
in cleaning solvent Will cause grease inside the
clutch to run out, causing clutch parts to seize
when operating.
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