Mitsubishi diesel engines Service Manual page 174

ELECTRICAL SYSTEM - DISASSEMBLY, INSPECTION AND REASSEMBLY
Inspecting the overrunning clutch
(6)
The shaft should rotate smoothly in one
(a)
direction, but should not rotate in the opposite
direction.
(b) Check the pinion for wear or damage. If faulty,
replace.
Do not wash the overrunning clutch in wash oil.
Front bracket
(7)
The ball bearing should rotate smoothly without
abnormal noise. If faulty, replace the entire front
bracket.
Internal gear, planetary gears, and armature shaft
(8)
gear
Replace if worn or damaged.
Lever
(9)
As the lever's friction surface with the
overrunning clutch wears, the pinion gap goes
out of the standard value. If so, adjust or replace
the lever.
(10) Magnet switch
Measure between M terminal and the body. If no
continuity is indicated, replace the magnet
switch.
Measure between B and M terminals.
continuity is indicated, replace the magnet
switch.
Inspecting the overrunning clutch
M terminal
If
Inspecting the magnet switch
S terminal
B terminal
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