Polaris Ranger RZR SW, Service Manual, Page: 337 / 346

10.31
ELECTRICAL
10
4. Measure the resistance between each commutator segment
and the armature shaft. The reading should be infinite (no
continuity).
5. Check commutator bars for discoloration. Bars discolored
in pairs indicate shorted coils, requiring replacement of the
starter motor.
6. Place armature in a growler. Turn growler on and position
a hacksaw blade or feeler gauge lengthwise 1/8” (.3 cm)
above armature coil laminates. Rotate armature 360

. If
hacksaw blade is drawn to armature on any pole, the
armature is shorted and must be replaced.
Starter Reassembly / Installation
1. Install brush plate to field magnet housing aligning index
tab.
2. Install O-ring, two small phenolic spacers, large phenolic
washer, flat washer, lock washer, and terminal nut.
3. While holding brush springs away from brushes, push
brushes back and hold in place.
4. Slide armature into field magnet housing. Release brushes.
5. Lightly grease the drive roller bearing and reinstall drive
end frame on armature. Inspect seal for wear or damage.
Replace drive end cap if necessary.
6. Be sure wire insulation is in place around positive brush
wire and pushed completely into slot on phenolic plate.
7. Using Dielectric Grease ( PN 2871329 ), lubricate brush end
bushing and install shims.
8. Align brush plate and install cover and screws.
9. Lightly grease pinion shaft and install pinion, spring
stopper, and snap ring.
10. Completely assemble starter motor and torque set bolts to
35 - 52 in. lbs. (3.9 - 5.9 Nm).
11. Install the starter onto the engine case. Hand tighten each
of the starter bolts. Torque the bottom bolt first to 9 ft.
lbs. (12 Nm). Then torque the top bolt to the same
specification.
CAUTION
Use care when handling starter housing.
Do not drop or strike the housing as magnet damage
is possible. If magnets are damaged,
starter must be replaced.
Roller Bearing
Seal
Set Bolt Torque: 35-52 in. lbs. (3.9-5.9 Nm)