Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 629

16-30
Growler
ENGINE ELECTRICAL –
BRUSH
1. Check the brush for roughness of the surface that contacts
the commutator and check the brush length.
Limit: Wear limit line
2. In case the contacting surface has been corrected or the
brush has been replaced, correct the contacting surface
Wear limit line
by winding sandpaper around the commutator.
ARMATURE COIL SHORT-CIRCUIT TEST
1. Place armature in a growler.
2. Hold a thin steel blade parallel and just above while rotating
armature slowly in growler. A shorted armature will cause
blade to vibrate and be attracted to the core. Replace
shorted armature.
Caution
Clean the armature surface thoroughly before
checking.
3. Check the insulation between each commutator segment
and armature coil core.
If there is no continuity, the insulation is in order.
ARMATURE COIL OPEN-CIRCUIT INSPECTION
Check the continuity between segments. If there is continuity,
the coil is in order.
Starting System