Shibaura ST318, Workshop Manual

Page: 79 / 247

78
(5) Clutch
A. If the gear is excessively worm or damaged, replace
it with new.
B. Clutch operation
➀ The clutch should lock the gear when turning it
to the normal revolving direction. And, it should
allow the gear to turn freely when turning the
gear in reverse direction.
➁ If the clutch fails to control the gear as
explained above, replace it with new one.
(6) Bearing
Rotate the bearing to check its catching or noise. If it is
caught or generates noise, replace it with new.
(7) Magnetic switch
NOTE:
1. Do not continue the following tests for more than
5 seconds.
2. Perform the test with 1/2 of the rated voltage.
➀ Check of pull-in coil
Check that the pinion gear comes out when the (-)
terminal of the battery is connected to the magnet
switch body and C terminal and then the (+)
terminal of the battery to the 50 terminal.
➁ Check of holding coil, holding condition
When removing the wire from the ‘C’ terminal, the
pinion gear should be kept on coming out.
If the gear is returned, the holding coil is
defective.
Reassembly
Perform reassembly of the starting motor in the reverse
order of its disassembly. Before assembling the felt washer,
retainer and steel ball, coat them with clean grease.
T206
T207