8.23
TRANSMISSION
8
9924096 - 2013 RANGER RZR XP 900 / RZR XP 4 900 Service Manual
© Copyright 2012 Polaris Sales Inc.
TRANSMISSION SERVICE (INT’L)
Differential Operation
The INT’L transmission has two traction operational
modes: Differential Lock and Differential Unlock. Locking
the rear differential is beneficial in low traction and rough
terrain conditions. Unlocking the rear differential makes
maneuvering easier and minimizes damage to terrain.
When “Differential-Unlock” is selected, the rear differential
becomes unlocked for tighter turns. An electrical solenoid
mounted in the rear portion of the gearcase actuates the
shift fork. The solenoid plunger extends out to move the
fork and slides the engagement dog away from the side
gear that is part of the planetary differential assembly. This
unlocks the rear differential. The rear drive shafts are now
dependent on the differential allowing for tighter turns.
When “Differential-Lock” is selected, power is removed
from the electrical solenoid allowing the solenoid plunger
to retract. Spring tension moves the shift fork back into
place and mates the engagement dog to the side gear that
is part of the planetary differential assembly. This locks the
rear differential as a solid rear axle, increasing traction.
AWD
Differential - Lock
Differential - Unlock
When switch position is set
to “Unlock”, the solenoid is
powered and the plunger
extends to disengage the
side gear and unlock
the differential.
When switch position is set
to “Lock”, power is removed
from the solenoid and spring
tension retracts the plunger
to engage the clutch gear
and lock the differential.
Planetary Differential Components
Solenoid
Spring
Bearing
Engagement Dog
Screw
Shift Fork
Torsion
Spring
Retainer
Planetary Differential
Differential Cover
Assembly
Female Side Gear
Assembly
Planet Gear
Assembly
Ring Gear
Assembly
Male Side Gear
Assembly
Assembly
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