Subaru 1600 Service Manual page 678

2. Test
1) Magnetic Switch Operation
The following magnetic switch tests
should be performed with specified
voltage applied.
NOTE:
Each test should be conducted within
3 - 5 seconds. Power to be furnished
should be one·half the rated voltage.
• Magnetic switch type
1) Pull·in coil attraction test
Prior to testing, disconnect the lead
wire from the M terminal on the
magnetic switch.
Connect the battery positive lead onto
the S terminal and two battery nega-
tive leads onto the starter body and
onto the M terminal respectively.
Fig.5-14 Pull-in coil attraction test
The magnetic switch should push out
overrunning clutch when the battery
voltage is 8V or more. If not, the
magnetic switch is defective and has to
be replaced.
2) Hold·in test
Under the above condition, disconnect
the battery negative lead from the M
terminal.
The overrunning clutch must remain
being pushed out.
A9-046
Fig. 15-15 Hold·in test
ELECTRICAL SYSTEM
3) Return test
Check the magnetic switch return per·
formance by connecting the battery
positive lead onto M terminal, and the
negative lead onto the starter body.
A9-047
I Pinion
2 M terminal
Fig. 15-16 Return test
After pulling out the pmlOn till it
contacts the pinion stop collar, release
it. At this time, if the pinion returns
with the battery voltage of 12V, the
magnetic switch is satisfactory. If not,
the switch should be replaced.
4) Pinion clearance test
Check the clearance between the
pinion and pinion stop collar with the
magnetic switch connected to the
battery as shown in figure.
Switch
"'
S 'I _ _ _ _ _
-«0
®
e
M Battery
A9-048
Fig. 15-17 Circuit of magnetic switch
assembly test
Clearance
between pinion
and pinion
stop collar
0.1-4mm
(0.004 - 0.157 in)
If the clearance is within the specified
values, replace the starter.
15-15
• Reduction type
1) Checking the pull·in coil
Connect a lead wire between the nega·
tive (-) terminal of the battery and
terminal C of the magnetic switch
body. Then connect a lead wire
between the positive (+) terminal of
the battery and terminal 50.
The pinion gear should spring out
when the positive lead wire is con·
nected.
A9-298
Fig. 15-18 Checking for operation
of the pull-in coil
2) Checking the hold-in coil
In the same wiring connections as in
1) "Checking the pull-in coil" above,
disconnect the lead wire from terminal
C to see if the pinion gear remains
sprung out. If not, the hold·in coil is
malfunctioning.
A9-299
Fig. 15-19 Checking for operation of
the hold·in coil