CRANKING SYSTEM 6G-3
Condition Possible Cause Correction
Motor not running
(No operating sound of
magnetic switch)Shift lever switch is not in P or N, or not adjusted
(A/T)Shift in P or N, or adjust switch.
Battery run down Recharge battery.
Battery voltage too low due to battery deteriora-
tionReplace battery.
Poor contact in battery terminal connection Retighten or replace.
Loose grounding cable connection Retighten.
Fuse set loose or blown off Tighten or replace.
Poor contacting action of ignition switch and mag-
netic switchReplace.
Lead wire coupler loose in place Retighten.
Open-circuit between ignition switch and magnetic
switchRepair.
Open-circuit in pull-in coil Replace magnetic switch.
Brushes are seating poorly or worn down Repair or replace.
Poor sliding of plunger and/or pinion Repair.
Motor not running
(Operating sound of
magnetic switch
heard)Battery run down Recharge battery.
Battery voltage too low due to battery deteriora-
tionReplace battery.
Loose battery cable connections Retighten.
Burnt main contact point, or poor contacting action
of magnetic switchReplace magnetic switch.
Brushes are seating poorly or worn down Repair or replace.
Weakened brush spring Replace.
Burnt commutator Replace armature.
Layer short-circuit of armature Replace.
Crankshaft rotation obstructed Repair.
Starting motor running
but too slow (small
torque) (If battery and
wiring are satisfac-
tory, inspect starting
motor)Insufficient contact of magnetic switch main con-
tactsReplace magnetic switch.
Layer short-circuit of armature Replace.
Disconnected, burnt or worn commutator Repair commutator or replace
armature.
Worn brushes Replace brush.
Weakened brush springs Replace spring.
Burnt or abnormally worn end bush Replace bush.
Starting motor run-
ning, but not cranking
engineWorn pinion tip Replace over-running clutch.
Poor sliding of over-running clutch Repair.
Over-running clutch slipping Replace over-running clutch.
Worn teeth of pinion gear Replace flywheel.
Noise
Abnormally worn bush Replace bush.
Worn pinion or worn teeth of pinion gear Replace pinion or flywheel.
Poor sliding of pinion (failure in return movement) Repair or replace.
Worn internal or planetary gear teeth Replace.
Lack of oil in each part Lubricate.
Starting motor does
not stop runningFused contact points of magnetic switch Replace magnetic switch.
Short-circuit between turns of magnetic switch coil
(layer short-circuit)Replace magnetic switch.
Failure of returning action in ignition switch Replace.
6G-6 CRANKING SYSTEM
DISASSEMBLY AND REASSEMBLY
1.0 kW TYPE
1. Front housing 6. Lever 11. Planetary carrier shaft 16. Armature
2. Needle bearing 7. Plunger 12. Planetary gear 17. Brush holder
3. Snap ring 8. Seal rubber 13. Oilless bearing 18. Rear bracket
4. Pinion stop ring 9. Magnetic switch 14. Center bearing with shock absorber 19. Rear bush
5. Over-running clutch 10. Internal gear 15. Yoke
CRANKING SYSTEM 6G-7
1.2 kW TYPE
1. Front housing 7. Lever 13. Internal gear 19. Brush
2. Bush 8. Plunger 14. Planetary carrier shaft 20. Brush holder
3. Snap ring 9. Plate 15. Planetary gear 21. Rear bracket
4. Pinion stop ring 10. Seal rubber 16. Packing 22. Rear bush
5. Pinion gear 11. Magnetic switch 17. Yoke 23. Brush spring
6. Over-running clutch 12. Ball 18. Armature
