Awd Diagnosis - Polaris 2012 RANGER RZR 570 INTL Service Manual

FINAL DRIVE

AWD Diagnosis

Symptom: AWD Will Not Engage
1. Check the gearcase coil re sistance. To test the coil
resistance, me asure between th e Gr ey and Brown/
White wir es. T he m easurement sh ould b e within
specification.
Front Gearcase Coil Resistance:
21.6 - 26.4 Ohms
2. Turn the ignition and AWD switche s on and place gear
selector in H igh or Lo w g ear. Ch eck fo r m inimum
battery voltage at the Gray and Brown/White chassis
wires that power the coil. A minimum of 11 Vdc should
be present.
3. If electrical tests ar e with in spe cification, r emove
gearcase (s ee "G earcase Re moval") a nd ins pect
components.
7.18
4. Inspect the armature plate for a con sistent wear
pattern. There should be two distinct wear bands (one
band inside the oth er). If o nly o ne band of wear is
present (or if there is wear between the two bands),
inspect the coil ar ea as indicate d in Step 5 . A wear
band with an interrupted wear m ark may in dicate a
warped pla te, which may ca
operation. See the following illustrations:
5. Check to make sure the coil is seated in the U-sha ped
insert that is pressed into the gearcase cover. The top
of the coil should b e se ated below the U-sha ped
insert. The U-shaped insert controls the pole gap. If
the top of the coil is above the surface of the U-shaped
insert it raises the armature plate, thereby increasing
pole gap. If the pole gap increases the coil will not be
strong enough to engage the AWD system. If this is
found, replace the cover plate assembly.
6. Inspect the rollers for nicks and scratches. The rollers
must slide up, down, in a nd out freely within the r oll
cage sliding surfaces and H-springs.
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
Check for
wear bands
Armature Plate
Gearcase Cover Plate Asm.
Coil
Side cutaway
U-shaped insert
view of cover
use inter mittent