Mitsubishi S3L Service Manual page 28

TROUBLESHOOTING
Key switch
faulty
Starter faulty
Incorrect
wiring
28 / 195 28 / 195
Key not returning
completely
Defective contact points
Problems in switch
Shift lever faulty
Overrunning clutch jammed
Subswitch faulty
External load connected to S circuit
S and B circuits shorted
OVERHAUL INSTRUCTIONS
Broken return spring
Sticking
Machining fault of parts
Key not finished to close
tolerances
External obstacle
Rust due to moisture
Pull-in and hold-in coils
unbalance in number of
windings
Pull-in or hold-in coil layer
shorted
Contact points defective
Plunger jammed
Machining fault of parts
Lever pivot jammed
Machining fault
Sliding part jammed
Sliding surface dirty
Machining fault of lead
Burned contact points
Assembly fault resulting in
failure to return
[Other possibility is sticking pinion metal in case of overrun trouble.]
ENGLISH Service Manual Mitsubishi SL-Series diesel engines
Starter is energized for hours, resulting
in:
• Burned hold-in coil
• Burned armature and field coils
• Burned subswitch (if so equipped)
• Burned motor coil
• Burned pull-in and hold-in coils
(minor defect)
• Plunger fails to return when
voltage is applied to circuit
between M and (–) terminals and
plunger is pushed in with switch off
starter
Switch will not turn off only when engine
fails to fire, resulting in burning of motor
coil
• Burned motor coil
• Burned pull-in and hold-in coils
Dotted lines indicate failure of contact
points to close
Sticking pinion metal
Burned hold-in coil and motor coil
Make reference to "Pull-in and hold-in
coil unbalance"
Make reference to "Key not returning
completely"
Version 08/2004