Suzuki 2006 SX4 Service Manual page 355

Brush Holder
• Check movement of brush in brush holder. If brush
movement within brush holder is sluggish, check
brush holder for distortion and sliding faces for
contamination.
Clean or correct as necessary.
• Check for continuity across insulated brush holder
(positive side) and grounded brush holder (negative
side).
If continuity exists, brush holder is grounded due to
defective insulation and should be replaced.
Armature
• Inspect commutator for dirt or burn. Correct with
sandpaper or lathe, if necessary.
1. Sandpaper of #300 – 400
• Check commutator for uneven wear with armature (1)
supported on V-blocks (2). If deflection of dial gauge
(4) pointer exceeds limit, repair or replace.
NOTE
The following specification presupposes that
the armature is free from bend. Bent
armature must be replaced.
Commutator out of round
Standard: 0.05 mm (0.002 in.) or less
Limit: 0.4 mm (0.015 in.)
3. Magnetic stand
• Inspect the commutator for wear. If diameter is below
limit, replace the armature.
Commutator outside diameter
Standard: 29.4 mm (1.16 in.)
Limit: 28.8 mm (1.13 in.)
I2RH01190014-01
• Inspect the commutator (1) for insulator (2) depth.
Correct or replace if below limit.
Commutator insulator depth "a"
Standard: 0.4 – 0.6 mm (0.015 – 0.024 in.)
Limit: 0.2 mm (0.008 in.)
I7RW01190005-02
[A]: Correct
[B]: Incorrect
Starting System: 1I-7
I2RH01190016-01
I2RH01190017-01
I7RW01190006-02