Page 355 - Manual Oficina Polaris RZR XP 1000 17-18

FINAL DRIVE

ALL WHEEL DRIVE OPERATION
The AWD switch may be turned on or off while the
vehicle is moving, however, AWD will not enable until the
engine RPM drops below 3100. Once the AWD is
enabled, it remains enabled until the switch is turned off.
Engage the AWD switch before getting into conditions
where the front wheel drive may be needed. If the rear
wheels are spinning, release the throttle before switching
to AWD.
CAUTION
Switching to AWD while the rear wheels are spinning
may cause severe drive shaft and gearcase damage.
Always switch to AWD while the rear wheels have
traction or are at rest.
AWD DIAGNOSIS
With the AWD switch off, the vehicle drives through the
rear wheels only (2 wheel drive). When the AWD is Symptom: AWD Will Not Engage
enabled, the front drive acts as an on-demand AWD 1. Check the gearcase coil resistance. To test the coil
system. This means, the front drive will engage once the resistance, measure between the power wire q (GY)
rear wheels have lost traction, and will remain engaged and ground wire w (BN/WH). Measurement should
until the torque requirement goes away (i.e. rear wheels be within specification.
regain traction).
AWD Engagement: When the AWD switch is activated,
the AWD coil is powered by a 12 Vdc input which creates
a magnetic field. This magnetic field attracts an armature
plate q that is keyed to the roll cage w. When the ring
gear e and roll cage are spinning (vehicle is moving),
the energized coil and armature plate will apply drag to 7
the roll cage that indexes the rollers inside the ring gear
to an engagement position. While in the engagement
position, the front drive will be in an “over-running”
condition (not engaged), until the rear wheels lose
traction. Once the rear wheels begin to lose traction, the
front drive will engage by coupling the output hubs r to
the ring gear via the rollers. The front drive will remain
engaged until the torque requirement goes away (i. e.
rear wheels regain traction).
AWD Disengagement: Once the rear wheels regain Front Gearcase Coil Resistance:
traction, the front wheels will return to the “over-running” 22 - 24 Ω
condition. The vehicle is now back to rear wheel drive
until the next loss of rear wheel traction occurs. 2. Turn on ignition and AWD switches and place gear
selector in High or Low. Check for minimum battery
Torsion Spring Operation: The torsion spring t acts voltage at Gray and Brown/White chassis wires that
as a return mechanism to help disengage the coupling of power the coil. Should have a minimum of 11 Vdc.
the output hubs and ring gear by creating an “over-
running” condition for the rollers upon disengagement. 3. If electrical tests are within specification, remove
gearcase (see Chapter 7 – Front Gearcase
Removalpage 7.31) and inspect components.

9928492 R06 - 2017-2018 RZR XP 1000 / XP4 1000 Service Manual 7.29
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