Forester F4-2.5L SOHC (2004)
4. Armature short-circuit test Check the armature for short-circuit by placing it on growler tester. Hold a iron sheet against the armature core
while slowly rotating armature. A short-circuited armature will cause the iron sheet to vibrate and to be attracted to core. If the iron sheet is
attracted or vibrates, the armature, which is short-circuited, must be replaced or repaired.
5. Armature ground test
Using a circuit tester, touch one probe to the commutator segment and the other to shaft. There should be no continuity. If there is continuity,
the armature is grounded. Replace the armature if it is grounded.
2. YOKE
Make sure the pole is set in position.
3. OVERRUNNING CLUTCH
Inspect the teeth of pinion for wear and damage. Replace if it is damaged. Rotate the pinion in direction of rotation (counterclockwise). It should
rotate smoothly. But in opposite direction, it should be locked.
CAUTION: Do not clean the overrunning clutch with oil to prevent grease from flowing out.
4. BRUSH AND BRUSH HOLDER
1. Brush length
Measure the brush length, and then replace if it exceeds the service limit.
Replace if abnormal wear or cracks are noticed.
2. Brush movement
Be sure the brush moves smoothly inside brush holder.
3. Brush spring force
Measure the brush spring force with a spring scale.
If it is less than the service limit, replace the brush holder.
Brush spring force:
Standard
15.9 - 19.5 N (1.62 - 1.99 kgf, 3.57 - 4.38 lb) (when new)