Subaru Legacy 2002 Service Manual page 508

5. SWITCH ASSEMBLY
Be sure there is continuity between terminals S
and M, and between terminal S and ground. Use
a circuit tester (set in "ohm").
Also check to be sure there is no continuity
between terminals M and B.
Terminal / Specified resistance:
S — M / Less than 1 Ω
S — Ground / Less than 1 Ω
M — B / More than 1 MΩ
6. SWITCH ASSEMBLY OPERATION
S179012A1006
1) Connect terminal S of switch assembly to posi-
tive terminal of battery with a lead wire, and starter
body to ground terminal of battery. Pinion should
be forced endwise on shaft.
CAUTION:
With pinion forced endwise on shaft, starter
motor can sometimes rotate because current
flows, through pull-in coil, to motor. This is not
a problem.
2) Disconnect connector from terminal M, and
connect positive terminal of battery and terminal M
using a lead wire and ground terminal to starter
body.
In this test set up, pinion should return to its origi-
nal position even when it is pulled out with a screw-
driver.
(A) Terminal S
(B) Terminal M
STARTER
S179012A1005
S6M0403
S6M0393A
SC-11
7. PINION GAP
S179012A1007
1) Measure pinion gap while the pinion is pulled
out as shown in the figure.
Pinion gap:
0.5 — 2.0 mm (0.020 — 0.079 in)
(A) Pinion
(B) Gap
(C) Stopper
If motor is running with the pinion forced endwise
on the shaft, disconnect connector from terminal M
of switch assembly and connect terminal M to
ground terminal (−) of battery with a lead wire.
Next, gently push pinion back with your fingertips
and measure pinion gap.
2) If pinion gap is outside specified range, remove
or add number of adjustment washers used on the
mounting surface of switch assembly until correct
pinion gap is obtained.
Starting/Charging Systems
S6M0394A