Final Drive

FINAL DRIVE

CHAPTER 7

FINAL DRIVE

SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2

TORQUE SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2

FRONT BEARING CARRIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2

BEARING CARRIER INSPECTION / REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.2

BEARING REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.3

BEARING CARRIER INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.4

FRONT DRIVE SHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.6

FRONT PROPSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.7

REMOVAL / INSTALLATION (XP / HD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.7

REMOVAL / INSTALLATION (6X6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.7

REMOVAL / INSTALLATION (CREW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.8

SUPPORT BEARING REPLACEMENT (CREW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.9

PROPSHAFT U-JOINT SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.10

FRONT GEARCASE - CENTRALIZED HILLIARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.12

ALL WHEEL DRIVE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.13

AWD DIAGNOSIS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.14

GEARCASE REMOVAL / DISASSEMBLY / INSPECTION . . . . . . . . . . . . . . . . . . . . . . 7.15

ASSEMBLY / INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.18

SETTING RING GEAR BACKLASH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.20

GEARCASE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.21

MID / REAR BEARING CARRIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.22

INSPECTION / REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.22

DISASSEMBLY / ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.23

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.24

MID / REAR DRIVE SHAFT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.25

MID PROPSHAFT (6X6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.26

MID GEARCASE (6X6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.27

GEARCASE REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.27

GEARCASE DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.29

GEARCASE ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.31

GEARCASE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.34

MID GEARCASE EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.35

DRIVE SHAFT SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.36

DRIVE SHAFT / CV JOINT HANDLING TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.36

OUTER CV JOINT / BOOT REPLACEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.36

INNER PLUNGING JOINT / BOOT REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . 7.38

DRIVE SHAFT EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.40

REAR PROPSHAFT (6X6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.41

REAR GEARCASE (6X6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.42

GENERAL OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.42

GEARCASE REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.43

GEARCASE DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.44

REAR GEARCASE ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.46

REAR GEARCASE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.49

REAR GEARCASE EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.50

7

7.1

9923499 - 2011 / 2012 RANGER 800 Service Manual

© Copyright 2011 Polaris Sales Inc.

FINAL DRIVE

SPECIAL TOOLS

PART NUMBER

2872608

PU-48951

TOOL DESCRIPTION

Roll Pin Removal Tool

Axle Boot Clamp Tool

SPX Corp: 1-800-328-6657 or http://polaris.spx.com/

2.

Check bearings for side play by grasping the top and bottom of the tire firmly and checking for movement.

The tire should rotate smoothly without binding or rough spots.

TORQUE SPECIFICATIONS

Wheel and Hub Torque Table

ITEM NUT TYPE SPECIFICATION

Aluminum Wheels



(Cast)

Steel Wheels



(Black / Camo)

Lug Nut

#1

Flange Nut

#2

Front Hub



Castle Nut

-

30 ft. lbs. + 90° (1/4 turn)

35 ft. lbs. (47 Nm)

80 ft. lbs. (108 Nm)

Mid / Rear Hub

Castle Nut

110 ft. lbs. (150 Nm)

3.

Remove the (4) wheel nuts and remove front wheel.

4.

Remove the cotter pin and loosen the front wheel hub castle nut. Remove the nut, and (2) cone washers from the front wheel hub assembly.

Castle Nut

Cone

Washers

#1

#2

Aluminum Wheel

(LE Models)

30 ft. lbs. + 90° (1/4 turn)

Steel Wheel

(Standard Models)

35 ft. lbs. (47 Nm)

Cotter Pin

FRONT BEARING CARRIER

Bearing Carrier Inspection / Removal

1.

Elevate front of vehicle and safely support machine under the frame area.

5.

Remove the two brake caliper mounting bolts.

CAUTION: Do not hang caliper by the brake line. Use wire to hang caliper to prevent damage to brake line.

CAUTION

Serious injury may result if machine tips or falls.

Be sure machine is secure before beginning this service procedure. Wear eye protection when removing bearings and seals.

7.2



FINAL DRIVE

6.

Remove the front wheel hub assembly.

7.

Remove the steering tie rod end fastener from the front bearing carrier.

Steering

Tie Rod End

12. Rotate bearing by hand and check for smooth rotation. Visually inspect bearings for moisture, dirt, or corrosion.

NOTE: Due to extremely close tolerances and minimal wear, the bearing must be inspected visually, and by feel. While rotating bearings by hand, inspect for rough spots, discoloration, or corrosion. The bearings should turn smoothly and quietly, with no detectable up and down movement and minimal movement sideways between inner and outer race.

13. Replace bearing if moisture or corrosion is evident.

Bearing Replacement

Bearing Removal

1.

Remove outer snap ring.

8.

Remove lower shock mounting fastener attached to the upper A-arm and remove shock from the A-arm.

Snap

Ring

9.

Remove the upper and lower ball joint pinch bolts.

2.

From back side of the bearing carrier, tap on the outer bearing race with a drift punch in the reliefs as shown.

7

Pinch

Bolts

10. Using a soft faced hammer, lightly tap on the bearing carrier while removing upper and lower ball joint ends.

11. Remove the bearing carrier from the front drive shaft.

3.

Drive bearing out evenly by tapping on outer race only. Once bearing is at bottom of casting, support casting on outer edges so bearing can be removed.

7.3



FINAL DRIVE

4.

Inspect bearing carrier housing for scratches, wear or damage. Replace front bearing carrier if damaged.

Bearing Installation

5.

Thoroughly clean the front bearing carrier housing and the outer race on the new bearing. Be sure that all oil residue has been removed from each surface.

6.

Support the bottom of the bearing carrier housing.

Bearing Carrier Installation

1.

Install the end of the drive shaft through the backside of the bearing carrier.

2.

Install the upper and lower ball joint ends into the front bearing carrier.

3.

Install pinch bolts and torque to specification.

CAUTION

Use an arbor and press only on the outer race, otherwise bearing damage may occur.

7.

Apply Loctite

®

603

™

retaining compound to the outer circumference of the new bearing race and carefully press the new bearing into the bearing carrier housing.

23 ft. lbs.

(31 Nm)

Apply

Loctite

®

603™

Snap Ring

Bearing

NOTE: Use care to not allow any of the Loctite

® compound to get in the bearing.

8.

Wipe the housing clean of any excess compound and install the snap ring.

= T

Pinch Bolts:

23 ft. lbs. (31 Nm)

4.

Install shock to A-arm and torque fastener to specification.

30 ft. lbs.

(41 Nm)

7.4

= T

Shock Mounting Bolts:

30 ft. lbs. (41 Nm)

5.

Apply grease to the drive shaft splines.



FINAL DRIVE

6.

Install front wheel hub assembly, cone washers, and hand tighten the castle nut. Install washers with domed side out.

Cone Washers

= T

Front Caliper Mounting Bolts:

30 ft. lbs. (41 Nm)

Wheel

Hub

CAUTION

Out

7.

Install the steering tie rod end onto the front bearing carrier and torque fastener to 40 ft. lbs. (54 Nm).

New bolts have a pre-applied locking agent which is destroyed upon removal. Always use new brake caliper mounting bolts upon assembly.

9.

Torque wheel hub nut to 80 ft. lbs. (108 Nm) and install a NEW cotter pin. Tighten nut slightly if necessary to align cotter pin holes.

80 ft. lbs.

(108 Nm)

40 ft. lbs.

54 (Nm)

NEW Cotter Pin

= T

Tie Rod End Fastener:

40 ft. lbs. (54 Nm)

= T

Front Hub Castle Nut:

80 ft. lbs. (108 Nm)

8.

Install the front brake caliper. Install the mounting bolts and torque to 30 ft. lbs. (41 Nm).

10. Install wheel and (4) wheel nuts. Torque wheel nuts to specification.

7

30 ft. lbs.

(41 Nm)

= T

Wheel Nuts:

Steel Wheels: 35 ft. lbs. (47 Nm)

Aluminum Wheels: 30 ft. lbs. + 90° (1/4 turn)

11. Rotate wheel and check for smooth operation. Bend both ends of cotter pin around the end of the shaft.

7.5



FINAL DRIVE

FRONT DRIVE SHAFT

Removal

1.

Perform the “Bearing Carrier Inspection / Removal” procedure listed under the “FRONT BEARING

CARRIER” section within this chapter.

Installation

1.

Install new spring ring on the end of the drive shaft.

Apply an anti-seize compound to splines.

NOTE: Perform all removal steps with the exception of removing the steering tie rod end. It will not be necessary to remove the tie rod end from the front bearing carrier when removing the front drive shaft.

CAUTION


Be sure machine is secure before beginning this service procedure.

2.

Remove the drive shaft from the front bearing carrier.

3.

With a short, sharp jerk, remove drive shaft from the front gearcase.

2.

Align splines of drive shaft with front gearcase and reinstall the drive shaft. Use a rubber mallet to tap on the outboard end of the drive shaft if necessary.

4.

Refer to the “DRIVE SHAFT SERVICE” procedure if repairing the drive shaft.

3.

Install drive shaft into the front bearing carrier.

4.

Perform the “Bearing Carrier Installation” procedure listed under the “FRONT BEARING CARRIER” section within this chapter.

7.6



FINAL DRIVE

FRONT PROPSHAFT

Removal / Installation (XP / HD)

1.

Elevate and safely support vehicle under the frame.

The use of a vehicle hoist is recommended for this procedure.

Removal / Installation (6x6)

1.



CAUTION

CAUTION





2.

Access the front propshaft roll pin through the skid plate hole.

3.

Use the Roll Pin Removal Tool (PN 2872608), to drive out the roll pin from the propshaft.

2.

Access the front propshaft roll pin through the skid plate hole.

3.

Use the Roll Pin Removal Tool (PN 2872608), to drive out the roll pin from prop shaft.

Roll Pin Removal Tool (PN 2872608)


4.

Remove the (8) T27 Torx-head screws retaining the floor cover and remove the cover from the vehicle.

4.

Remove the (8) T27 Torx-head screws retaining the floor cover and remove the cover from the vehicle.

5.

Slide the propshaft back and away from front gearcase, then pull the shaft sharply forward to remove it from the transmission shaft.

5.

Slide the propshaft back and away from front gearcase, then pull the shaft sharply forward to remove it from the transmission shaft.

6.

Using care, pull the propshaft towards the right side of the frame and slide it out the right rear portion of the frame.

7

6.

Using care, pull the propshaft towards the left side of the frame and slide it out the left rear side of the vehicle in front of the PVT system.

See NOTE

7.

Reverse this procedure to reinstall the front propshaft.

8.

Use a NEW roll pin upon installation.

NOTE: Avoid making contact with the shift cable and cable mounting tab during removal to prevent component damage.

7.

Reverse this procedure to install the front propshaft.

8.

Use a NEW roll pin upon installation.

7.7



FINAL DRIVE

Removal / Installation (CREW)

1.



6.

Slide the rear portion of the shaft back on the transmission shaft and move both shafts toward the left side of the vehicle to separate them.

CAUTION



NOTE: Propshaft roll pin removal is only required if removing the front portion of the propshaft.

2.

Access front propshaft roll pin through skid plate hole.

3.

Use the Roll Pin Removal Tool (PN 2872608), to drive out the roll pin from prop shaft.

7.

If removing the front portion of the propshaft, slide it back and away from front gearcase to remove it.


8.

If removing the rear portion, remove the bearing support (upper & lower half).

4.

Remove the front seat base and large storage container to access the support bearing.

9.

Using care, pull the rear portion of the propshaft towards the left side of the frame and slide it out the left rear side of the vehicle in front of the PVT system.

Support Bearing

5.

Remove (2) nuts and bolts retaining bearing support.

7.8

10. Reverse this procedure to reinstall and assemble the front propshaft.

11. Torque bearing support fasteners to specification.

= T

Bearing Support Fasteners:

30-36 ft. lbs. (41-49 Nm)

12. If front propshaft was removed, use a NEW roll pin upon installation.



FINAL DRIVE

Support Bearing Replacement (CREW)

1.

Follow steps 4-6 of the “Removal / Installation

(CREW)” procedure.

7.

Align the front and rear portions of the propshaft as shown below and slide them together.

2.

Remove the bearing support (upper and lower half) and the retaining ring. Loosen the (2) set screws retaining the bearing to the shaft.

Loosen

8.

Install the upper and lower halves of the bearing support along with the (2) fasteners. Torque the support bearing fasteners to specification.

Remove

= T

3.

Slide the bearing off the end of the shaft.

NOTE: If bearing is seized on the shaft, remove the rear portion of the shaft from the vehicle. Refer to

“Removal / Installation (CREW)”.

4.

Clean surface of the shaft and install the new bearing.

5.

Install a new retaining ring and slide the bearing tight against the retaining ring.

6.

Apply Loctite

®

242

™

to the set screw threads and torque the (2) bearing set screws to specification.

Bearing Support Fasteners:

30-36 ft. lbs. (41-49 Nm)

9.

Grease the propshaft yoke(s).

10. Reinstall the large storage container and front seat base.

7

30-35 in. lbs.

(3.4-4.0 Nm)

= T

Bearing Set Screws:

30-35 in. lbs. (3.4-4.0 Nm)

Retaining

Ring



7.9

FINAL DRIVE

PROPSHAFT U-JOINT SERVICE

Disassembly

1.

Remove internal or external snap ring from all bearing caps.

CAUTION

3.

Support U-joint in vise as shown and drive inner yoke down to remove remaining bearing caps.

Always wear eye protection.

4.

Force U-joint cross to one side and lift out of inner yoke.

NOTE: If yoke or bearing is removed, cross bearing must be replaced. Note orientation of grease fitting and mark inner and outer yoke for correct repositioning during installation.

2.

Support inner yoke as shown and drive outer yoke down (bearing cap out) with a soft face hammer.

7.10



FINAL DRIVE

Assembly

1.

Install new bearing caps in yoke by hand. Carefully install U-joint cross with grease fitting properly positioned inward toward center of shaft. Take care not to dislodge needle bearings upon installation of cross joint. Tighten vise to force bearing caps in.

5.

Install outer yoke, aligning marks made before disassembly.

2.

Using a suitable arbor, fully seat bearing cap in one side.

3.

Continually check for free movement of bearing cross as bearing caps are assembled.

6.

Repeat Steps 1-4 to install bearing caps on outer yoke.

7.

Seat all bearing caps against snap rings by supporting cross shaft and tapping on each corner as shown.

7

4.

Install snap ring to contain bearing cap just installed.

Repeat procedure for other side.

8.

When installation is complete, yokes must pivot freely in all directions without binding. If the joint is stiff or binding, tap the yoke lightly to center the joint until it pivots freely in all directions.



7.11

FINAL DRIVE

FRONT GEARCASE - CENTRALIZED HILLIARD

Exploded View

21

20

8-10 ft. lbs.

(11-14 Nm)

5

28

11

9

10

12

31

1

7-11 ft. lbs.

(10-15 Nm)

15

35

14

13

34

18

17

16

32

8-10 ft. lbs.

(11-14 Nm)

15

22

6

3

30

8

37

38

2

6

22

15

29

36

23

33

24

19

27

25

7

26

R

EF

# D

ESCRIPTION

3

4

1

2

5

6

Screws, 1/4-20

Armature Plate

Bushing

Output Cover

Gearcase

Output Hub

7

8

Plastic Clip

Roll Cage

9 Spacer, Gear

10 Clutch Housing / Ring Gear

11 Bushing

12 Input Cover

13 O-Ring

14 Retaining Ring

15 Ball Bearing

16 Pinion Gear

17 Dowel Pin

18 Bearing

19 Thrust Button Asm.

7.12

Q

TY

1

1

1

3

1

1

1

1

1

1

1

1

1

1

1

8

1

1

2

R

EF

# D

ESCRIPTION

20 Fill Plug

21 Vent Tube

22 Nylon Spacer

23 AWD Coil / Coil Pocket Insert

24 Thrust Plate

25 O-Ring

26 Grommet

27 Set Screw

28 Oil Seal

29 Rollers

30 H-Clip Springs

31 Oil Seal

32 Drain Plug Asm. w/Magnet

33 Dowel Pin

34 Needle Roller Bearing

35 Retaining Ring

36 Spring, Wire Form

37 Torsion Spring

38 Spring Retainer

4

1

28

7-11 ft. lbs.

(10-15 Nm)

Q

TY

2

1

1

1

1

20

1

1

1

1

1

2

20

2

1

1

1

1

1



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

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 that is keyed to the roll cage. When the ring gear and roll cage are spinning (vehicle is moving), the energized coil and armature plate will apply drag to 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 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).

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.

Ring

Gear

With the AWD switch off, the vehicle drives through the rear wheels only (2 wheel drive). When the AWD is enabled, the front drive acts as an on-demand AWD system. This means, the front drive will engage once the rear wheels have lost traction, and will remain engaged until the torque requirement goes away (i.e. rear wheels regain traction).

Output Hubs

Rollers

Roll Cage

& H-Springs

CAUTION

If the rear wheels are spinning, release the throttle before turning the AWD switch on.

If AWD is engaged while the wheels are spinning, severe drive shaft and front gearcase damage could result.

AWD Disengagement: Once the rear wheels regain traction, the front wheels will return to the “over-running” condition. The vehicle is now back to rear wheel drive until the next loss of rear wheel traction occurs.

7

Torsion Spring Operation: The torsion spring acts as a return mechanism to help disengage the coupling of the output hubs and ring gear by creating an “over-running” condition for the rollers upon disengagement.

Centers Roll Cage and

Rollers in Ring Gear

Output

Hubs

Ring

Gear

Roll Cage

& Rollers

Torsion

Spring

7.13



FINAL DRIVE

AWD Diagnosis

Symptom: AWD Will Not Engage

1.

Check the gearcase coil resistance. To test the coil resistance, measure between Grey and Brown/White wires. Measurement should be within specification.

5.

Check to make sure the coil is seated in the U-shaped insert that is pressed into the gearcase cover. The top of the coil should be seated below the U-shaped 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.

Gearcase Cover Plate Asm.

Coil

Front Gearcase Coil Resistance:

21.6 - 26.4 Ohms

U-shaped insert

Side cutaway view of

Centralized Hilliard cover

2.

Turn the ignition switch and AWD switch on and place gear selector in High or Low gear. Check for minimum battery voltage at Gray and Brown/White chassis wires that power the coil. A minimum of 11 Vdc should be present.

3.

If electrical tests are within specification, remove gearcase (see “Gearcase Removal”) and inspect components.

4.

Inspect armature plate for a consistent wear pattern.

There should be two distinct wear bands (one band inside the other). If only one band of wear is present

(or if there is wear between the two bands), inspect the coil area as indicated in Step 5. A wear band with an interrupted wear mark may indicate a warped plate, which may cause intermittent operation.

6.

Inspect the rollers for nicks and scratches. The rollers must slide up, down, in and out freely within the roll cage sliding surfaces and H-springs.

Roll Cage Assembly

Rollers

Armature Plate

7.

Inspect the roll cage assembly for cracks or excessive wear. If damaged, replace the roll cage assembly.

7.14

Check for Wear Bands



FINAL DRIVE

Gearcase Removal

1.

Stop engine, place machine in gear and set parking brake.

2.

Elevate front of vehicle and safely support machine under the frame area.

CAUTION

Disassembly / Inspection

1.

Drain and properly dispose of used lubricant.

Remove any metal particles from the drain plug magnet.

2.

Remove the (5) screws retaining the outer cover assembly.


Be sure machine is secure before beginning this service procedure.

3.

Remove both front drive shafts from the front gearcase (see “FRONT DRIVE SHAFT - Removal”).

4.

Remove the front propshaft from the front gearcase

(see “FRONT PROPSHAFT - Removal”).

5.

Remove LH wheel well panel and disconnect AWD wire harness. Cut plastic tie strap to free the connector end from the main harness to allow gearcase removal.

6.

Remove the (4) bolts securing the bottom of the gearcase to the skid plate frame.

3.

Remove the output cover assembly from the gearcase.

NOTE: Thrust bushing located between the two output hubs is pressed into assembly.

4.

Remove the RH output hub assembly from the outer cover plate assembly.

7

7.

Remove the vent line from the gearcase.

8.

Remove gearcase from front left-hand wheel well area and pull it out between upper and lower A-arms.

Cover

Plate

Output Hub

Assembly

5.

Inspect the bearing and contact surfaces of the output hub for signs of wear or damage. Replace component if found to be worn or damaged.

6.

Remove and inspect the armature plate. Refer to

“AWD Diagnosis” for detailed inspection process.

7.15



FINAL DRIVE

7.

Remove the torsion spring retainer and torsion spring from the top of the ring gear.

Spring Retainer

10. Remove the roll cage assembly and rollers from the clutch housing. Use a shop towel to cover the housing in order to retain all the rollers.

NOTE: Rollers are spring loaded. Take care not to allow them to fall out or lose them upon removal of the roll cage.

11. Thoroughly clean all parts and inspect the rollers (A) for nicks and scratches. The rollers must slide up and down and in and out freely within the roll cage (B) sliding surfaces and H-springs.

C

Torsion Spring

B

8.

Remove the clutch housing / ring gear and roll cage assembly from the gearcase housing.

Remove as an assembly

A

IMPORTANT: Refer to the “Electronic Parts Catalog” for individual part availability. Most parts are to be replaced as an assembly or as a complete kit.

12. Inspect clutch housing ring gear (C) for a consistent wear pattern. Inspect the ring gear for chipped, broken, or missing teeth.

9.

Remove LH output hub. Inspect the bearing and contact surfaces of the output hub for signs of wear or damage. Replace component if found to be worn or damaged.

13. Inspect the roll cage assembly (B) sliding surfaces and H-springs. The sliding surfaces must be clean and free of nicks, burrs or scratches. If damaged, replace the roll cage assembly.

H-Spring B

7.16



FINAL DRIVE

14. Inspect both output hub assemblies. Inspect the bearings and replace if needed.

17. Inspect the magnetic coil (D) in the outer cover plate assembly. Inspect the backlash pad (E) for excessive wear.

Bearing Thrust

Bearing

E

D

Spacer

Roller

Surface

15. Clean and inspect all remaining front gearcase components. Check each for excessive wear or damage.

NOTE: See “AWD DIAGNOSIS” in this section for more details on the coil.

16. Inspect the armature plate for a consistent wear pattern. Uneven wear of the armature plate indicates a warped plate, which may cause intermittent operation.

NOTE: The backlash for the centralized hilliard is set at the factory. No adjustment is required, unless the front cover needs to be replaced, or the back lash pad screw is removed. See the “Setting Ring Gear

Backlash” procedure later in this chapter for details on backlash setting.

18. Remove the bolts retaining the input shaft cover and pinion gear assembly.

7

NOTE: See “AWD DIAGNOSIS” in this section for more details.



7.17

FINAL DRIVE

19. Remove the snap ring retaining the input shaft assembly.

Assembly / Inspection

1.

Replace all O-rings, seals and worn components.

20. Remove the input shaft assembly. Inspect the pinion gear (F) for chipped, broken, or missing teeth. Inspect the input shaft bearing (G) for signs of wear. Replace the input shaft cover O-ring prior to reassembly.

F

G

2.

Press the pinion shaft seal into the pinion cover, until the seal is flush with the sealing surface.

3.

Inspect bearings on output and pinion shafts. To replace, press new bearing on to shaft.

NOTE: Due to extremely close tolerances and minimal wear, the bearings must be inspected visually, and by feel. While rotating bearings by hand, inspect for rough spots, discoloration, or corrosion. The bearings should turn smoothly and quietly, with no detectable up and down movement and minimal movement side to side.

4.

Install input shaft, bearing, snap ring and input cover with a new O-ring. Torque screws to specification.

21. Inspect the input shaft bushing.

22. Thoroughly clean the gearcase components before beginning reassembly.

7.18

= T

Input Cover Screws:

7-11 ft. lbs. (10-15 Nm)



FINAL DRIVE

5.

Install the LH output hub (A) into the gearcase housing. The output hub should spin freely.

9.

Install the torsion spring by wrapping each leg of the spring around the dowel pin on the ring gear.

A

6.

Install the RH output hub (B) into the output cover. The output hub should spin freely.

10. Align spring retainer dowel pin with ring gear dowel pin and install the retainer on top of the torsion spring.

B

Align during installation

7.

Carefully install the rollers into the roll cage assembly while installing the assembly into the clutch housing.

11. Check the action of the torsion spring to ensure proper installation of spring and retainer.

7

8.

Carefully install the ring gear and roll cage assembly into the gearcase housing.

12. Install the armature plate on top of the roll cage / ring gear assembly. Be sure that the armature plate tabs are fully engaged into the roll cage assembly and is resting properly on the torsion spring retainer.

7.19



FINAL DRIVE

13. Install a new O-ring onto the cover plate assembly and install the cover plate onto the main gearcase.

NOTE: Verify the square O-ring is placed flat on the cover surface. If the O-ring is twisted, fluid leakage may occur.

14. Install the output cover screws and torque to specification.

3.

Using a 3/32 hex wrench, turn the back-lash screw out

3-4 turns. Re-apply Loctite 262



onto the bottom screw threads.

4.

Turn the screw in until it is lightly seated, then turn the screw out 1/4 turn.

5.

Set the gearcase upright. Rotate the input shaft at least 4 times. This ensures the ring gear completes one full rotation.

= T

Output Cover Screws

7-11 ft. lbs. (10-15 Nm)

Setting Ring Gear Backlash

NOTE: Ring gear backlash is set at the factory. No adjustment is required, unless the front cover is replaced or the back lash pad screw is removed.

1.

Lay the front gearcase on its side with the output cover facing up.

2.

The backlash screw has locking agent that holds it into place. Use a heat gun to lightly heat up the locking agent on the screw.

6.

If a tight spot is felt during rotation, loosen the backlash screw another 1/8 turn. Perform step 5 again. Repeat this procedure until the pinion shaft rotates smoothly 4 times (1 revolution of ring gear).

7.20



FINAL DRIVE

Gearcase Installation

1.

Install the gearcase through the front left-hand wheel well area between the upper and lower A-arms.

9.

Add the proper lubricant to the front gearcase. Check drain plug for proper torque. Refer to Chapter 2 for fluid fill and change information.

2.

Install the vent line to the gearcase and ensure it’s routed properly up top under the hood.

3.

Install propshaft onto the front gearcase.

4.

Install new mounting bolts and torque to specification.

= T

Gearcase Mounting Bolts:

40 ft. lbs. (54 Nm)

5.

Drive a new roll pin into the front propshaft (see

“FRONT PROPSHAFT - Installation”).

6.

Install the drive shafts into the front gearcase (see

“FRONT DRIVE SHAFT - Installation”).

7.

Connect the AWD harness and tie the harness to the main harness using a plastic tie strap.

8.

Reinstall the LH wheel well panel.



7.21

7

FINAL DRIVE

MID / REAR BEARING CARRIER

Inspection

1.

Support the machine securely with rear wheels elevated.

4.

Remove the two brake caliper mounting bolts and remove the caliper from the bearing carrier.

CAUTION



2.

Check the bearings for side play. Grasp the top and bottom of the wheel or wheel hub and check for movement.

3.

If movement is detected, inspect wheel hub, castle nut torque and bearing condition. The tire should rotate smoothly without binding or rough spots. Correct as necessary.

Removal

1.

Elevate the rear end of the vehicle and safely support the vehicle under the main frame area.

2.

Remove wheel nuts, washers and wheel.

3.

Remove the cotter pin, castle nut and washers.

CAUTION

Do not hang the caliper by the brake line. Use mechanics wire to hang the caliper to prevent possible damage to the brake line.

5.

Slide the wheel hub out from the bearing carrier and drive shaft.

6.

Remove the upper and lower A-arm fasteners from the bearing carrier.

Castle Nut

7.22

Cotter Pin

Washers

7.

Remove the bearing carrier. Inspect the bearing again for smoothness and side to side movement, replace as needed.



Disassembly

1.

Remove the retaining ring from the bearing carrier.

FINAL DRIVE

Assembly

1.

Thoroughly clean the bearing carrier housing and prepare the components for assembly.

2.

From the back side, tap on the outer bearing race with a drift punch in the reliefs as shown.

NOTE: Drive bearing out evenly by tapping on outer race only. Once bearing is at bottom of casting, support casting on outer edges so bearing can be removed.

2.

Support the bottom of the bearing carrier housing.

Start the bearing (A) in the bearing carrier housing (B).

Use an arbor press to install the bearing.

A

B

3.

Press the bearing into place until the outer bearing race bottoms in housing.

3.

Inspect the bearing.

NOTE: Due to extremely close tolerances and minimal wear, the bearings must be inspected visually, and by feel. While rotating bearings by hand, inspect for rough spots, discoloration, or corrosion. The bearings should turn smoothly and quietly, with no detectable up and down movement and minimal movement sideways between inner and outer race.

4.

Inspect bearing housing for scratches, wear or damage. Replace housing if damaged.

5.

Replace the bearing carrier bushings if worn or damaged.

CAUTION

Use an arbor and press only on the outer race, otherwise bearing damage may occur.

4.

Install a new retaining ring into bearing carrier groove.

7.23



7

FINAL DRIVE

Installation

1.

Place the bearing carrier over the drive shaft.

2.

Align the bottom of the bearing carrier with the lower

A-arm. If previously removed, install new lower A-arm bushings. Install the lower bearing carrier fastener.

3.

With the drive shaft placed in the bearing carrier, align the top of the bearing carrier with the upper A-arm. If previously removed, install new upper A-arm bushings. Install the upper bearing carrier fastener.

8.

Carefully lower the vehicle. Torque the wheel hub castle nut to specification. Install a new cotter key.

= T

Mid / Rear Hub Castle Nut:

110 ft. lbs. (150 Nm)

NOTE: The lower shock bolt may need to be removed to allow the upper A-arm to move freely.

4.

Torque the upper and lower bearing carrier fasteners to specification.

= T

Bearing Carrier Fasteners:

30 ft. lbs. (41 Nm)

5.

Install the wheel hub assembly onto the drive shaft.

6.

Install the washers (domed side out) and the wheel hub castle nut.

7.

Install the wheel, washers and wheel nuts. Torque wheel nuts to specification.

= T

Wheel Nuts:

Steel Wheels: 35 ft. lbs. (47 Nm)

Aluminum Wheels: 30 ft. lbs. + 90° (1/4 turn)

7.24



FINAL DRIVE

MID / REAR DRIVE SHAFT

Removal

1.

Perform the “MID / REAR BEARING CARRIER -

Removal” procedure, steps 1-5.

2.

Remove lower shock fastener to free the upper A-arm.

5.

Remove the drive shaft using short, sharp jerks to free the circlip.

Remove

6.

Refer to the “DRIVE SHAFT SERVICE” section if repairing the drive shaft.

3.

Remove the upper bearing carrier fastener and separate the bearing carrier from the upper A-arm.

Installation

1.

Install a new circlip on the end of the drive shaft or mid gearcase output shaft (6x6). Apply an anti-seize compound to the splines.

7

4.

Slide the drive shaft out by pulling the bearing carrier outward and tipping it down to remove the shaft.

2.

Align splines of the drive shaft with the transmission

(4x4), mid gearcase or rear gearcase (6x6) and reinstall the drive shaft. Use a rubber mallet to tap on the outboard end of the drive shaft if necessary.

3.

Install the drive shaft into the bearing carrier.

4.

Perform the “MID / REAR BEARING CARRIER -

Installation” procedure to reassemble the vehicle.

7.25



FINAL DRIVE

MID PROPSHAFT (6X6)

Removal

1.

Drive the roll pin from the mid propshaft yoke located at the transmission.

3.

Remove parking brake caliper assembly from caliper mount bracket to allow the rear propshaft to slide back on the rear gearcase input shaft during removal.

Roll Pin

Removal Tool

Remove


2.

Drive the roll pin from the rear propshaft yoke located at the mid gearcase.

4.

Slide rear propshaft back on rear gearcase input shaft and remove the propshaft from the mid gearcase.

5.

Loosen (4) bolts retaining mid gearcase to the frame.

7.26

Roll Pin

Removal Tool

6.

Slide the mid gearcase forward. Lift up on the gearcase to clear the frame and slide the gearcase towards the rear of the vehicle to remove the mid propshaft from the transmission.

Rear Propshaft

Mid Gearcase



FINAL DRIVE

Installation

1.

Install the mid propshaft onto the transmission output shaft and align the roll pin holes. Drive a NEW roll pin into the propshaft yoke.

2.

Slide the mid gearcase forward in the frame. Install the mid propshaft onto the mid gearcase input shaft.

3.

Position the mid gearcase and install the (4) mounting bolts. Torque the bolts to specification.

MID GEARCASE (6X6)


1.


Roll Pin

Removal Tool


30-36 ft. lbs.

(41-49 Nm)

= T

Mid Gearcase - Mounting Bolts:

30-36 ft. lbs. (41-49 Nm)

4.

Install the rear propshaft onto the mid gearcase and drive a NEW roll pin into the propshaft yoke.

5.

Install parking brake caliper assembly. Tighten the mounting bolts and torque to specification.

2.

Remove the parking brake caliper assembly from the caliper mount bracket to allow the rear propshaft to slide back on the rear gearcase input shaft during removal.

Remove

7

18 ft. lbs.

(24 Nm)

3.

Slide the rear propshaft back on the rear gearcase input shaft and remove the propshaft from the mid gearcase.

= T

Parking Brake Caliper - Mounting Bolts:

18 ft. lbs. (24 Nm)



7.27

FINAL DRIVE

4.

Perform the “MID / REAR DRIVE SHAFT - Removal” procedure to remove the drive shafts from the mid gearcase.

6.

Slide the mid gearcase forward. Lift up on the gearcase to clear the frame and slide the gearcase rearward to remove the mid propshaft from the mid gearcase.

Mid Propshaft

Mid Gearcase

5.

Remove the (4) bolts retaining the mid gearcase to the frame.

7.

Lift the mid gearcase out of the frame.

7.28



FINAL DRIVE

Gearcase Disassembly

1.

Drain the oil from the mid drive gearcase. Properly dispose of the oil.

2.

Remove the output cover bolts (A) and the output cover (B).

4.

Remove the output shaft and ring gear assembly (E) from the gearcase. Inspect the ring gear for abnormal wear, broken, or chipped teeth. Inspect and spin the bearings (F), the bearings should rotate smoothly.

E

B

F

F

A

3.

Remove the O-ring (C) and two shims (D) from the output cover.

NOTE: The two shims are different thicknesses. Be sure to note the placement of the shims as they are removed from the output cover for later installation.

5.

Remove the wave spring (G) from the gearcase assembly.

C

7

6.

Remove the bolts from the input cover (H).

H

G

D



7.29

FINAL DRIVE

7.

Remove the input cover (H) and pinion gear assembly from the gearcase.

9.

Inspect the pinion gear (K) and 26T output gear (L) for nicks or uneven wear. Inspect the bearing (M), the bearing should spin smoothly. Replace the parts as needed.

K

L M

H

8.

Remove the pinion gear assembly (J) from the front cover (H). If the pinion gear does not come loose from the front cover, use the following steps to aid in removal:

10. Remove the rear output seal (N).

N

• Hold the pinion gear assembly.

• Use a rubber mallet to lightly tap around the bearing cup of the front cover.

• Tap the front cover in an X pattern (follow the pattern in the photo), until the pinion gear assembly comes loose.

J

H

1

4 3

11. Remove the retaining ring (O) and shim (P) from the rear output thru shaft.

O

2

7.30

P



FINAL DRIVE

12. Carefully pull the output thru shaft (Q) through the gearcase.

S

Q

13. Remove the retaining ring (O), shim (P), and input gear (R) from the output shaft (Q). Inspect the input gear for abnormal wear, broken, or chipped teeth.

15. Replace all O-ring, seals, and worn components.

Replace the seals as shown in the photo.

R

P

Q

O

14. Inspect the two flange bearings (S) inside the gearcase. Inspect the pinion shaft bushing (T) for wear inside the gearcase.

Gearcase Assembly

1.

Install the shim (A) and a new retaining ring (B) onto the output end of the output shaft (C). Install the output thru shaft into the gearcase.

7

T

C

S

A & B

7.31



FINAL DRIVE

2.

Install the 26T input gear (D), shim (E), and a new retaining ring (F) onto the output shaft.

E

• Hold the pinion gear assembly.

• Use a rubber mallet to lightly tap on the front of the input cover, around the bearing cup.

• Tap the front cover in an X pattern (follow the pattern in the photo), until the pinion gear assembly is fully seated.

1

3

D

4

2

F

3.

Assemble the pinion shaft assembly (if previously disassembled). Install the 26T gear (G) and bearing

(H) onto the pinion shaft (I).

NOTE: When replacing the 26T output, be sure the step of the gear is facing towards the bearing (see below).

5.

Apply Polaris Crankcase Sealant (PN 2871557) to the inside surface of the input cover (J).

Pinion Shaft Assembly

Step Of Gear

J

I

G

H

Pinion Shaft Assembly

Sealant

6.

Install the pinion shaft assembly and input cover onto the gearcase. Install the input cover bolts (K). Torque the bolts to 18 - 23 ft. lbs. (24 - 31 Nm).

4.

Install the pinion shaft assembly into the input cover.

NOTE: Alignment of the pinion shaft bearing into the input cover maybe be difficult. If needed, use the following steps to aid in installation:

7.32



K

FINAL DRIVE

7.

Install the wave spring (L) into the gearcase assembly. Be sure the wave spring is fully seated into the bearing cup of the gearcase.

10. Install a new O-ring (O) onto the output cover.

L

O

8.

Install the output shaft and ring gear into the gearcase.

Be sure the 10T input pinion gear and the output pinion gear mesh smoothly.

11. Carefully install the output cover. Install the output cover bolts and Torque the bolts to specification.

Output Cover Bolt Torque:

18 - 23 ft. lbs. (24 - 31 Nm)

9.

Install the shims (M) into the output cover (N). Install the shims in the order that they were removed during the disassembly process.

12. Remove fill plug (P) and fill mid gearcase with 6.75 oz.

(200 ml) of Polaris ATV Angle Drive Fluid (PN

2876160). Torque the fill plug to 14 ft. lbs. (19 Nm).

M

7

N

P



7.33

FINAL DRIVE

Mid Gearcase Specifications:

Capacity: 6.75 oz. (200 ml)

Specified Lubricant: ATV Angle Drive Fluid

(PN 2876160)

Fill Plug Torque: 14 ft. lbs. (19 Nm)

Gearcase Installation

1.

Install the mid gearcase into the frame.

2.

Slide the mid gearcase forward and install the mid propshaft onto the mid gearcase input shaft.

Mid Propshaft

4.

Perform the “MID / REAR DRIVE SHAFT -

Installation” procedure to reinstall the mid drive shafts.

5.

Install the rear propshaft onto the mid gearcase and drive a NEW roll pin into the propshaft yoke.

6.

Install the parking brake caliper assembly. Tighten the two mounting bolts in increments and torque to specification.

18 ft. lbs.

(24 Nm)

= T


18 ft. lbs. (24 Nm)

Mid Gearcase

3.

Position the mid gearcase and install the (4) mounting bolts. Torque the bolts to specification.

7.34

30-36 ft. lbs.

(41-49 Nm)

= T

Mid Gearcase - Mounting Bolts:

30-36 ft. lbs. (41-49 Nm)



Mid Gearcase Exploded View

FINAL DRIVE

18-23 ft. lbs.

(24-31 Nm)

R

EF

# D

ESCRIPTION

7

8

5

6

3

4

1

2

Screw (5/16-18 x 1.0)

Plug, Square Socket

Seal, Dual Lip

Tube, Vent 1/4” Hose

Cover, Output

Shim

Bearing, Ball

Gear, Ring 37T

9 Shaft, Output

10 Bearing, Ball

11 Spring, Wave

12 O-Ring

13 Pipe, Knock

14 Seal, Triple Lip

15 Ring, Retaining

Q

TY

4

1

2

1

1

1

1

1

1

1

1

2

1

15

3

R

EF

# D

ESCRIPTION

16 Washer, Thrust

17 Bearing, Plain Flanged

18 Gearcase

19 Bushing

20 Pinion, 10T

21 Gear, 26T Output

22 Bearing, Ball

23 Shaft, Output Thru

24 Gear, 26T Input

25 Cover, Input

26 Seal, Triple Lip

27 N/A

28 N/A

29 N/A

30 Ring, Hog



18-23 ft. lbs.

(24-31 Nm)

Q

TY

-

-

2

1

-

1

1

1

1

1

1

1

1

2

2

7.35

7

FINAL DRIVE

DRIVE SHAFT SERVICE

Drive Shaft / CV Joint Handling Tips

Care should be exercised during drive shaft removal or when servicing CV joints. Drive shaft components are precision parts.

2.

Remove the large end of the boot from the CV joint and slide the boot down the shaft.

Cleanliness and following these instructions is very important to ensure proper shaft function and a normal service life.

• The complete drive shaft and joint should be handled by getting hold of the interconnecting shaft to avoid disassembly or potential damage to the drive shaft joints.

• Over-angling of joints beyond their capacity could result in boot or joint damage.

• Make sure surface-ground areas and splines of shaft are protected during handling to avoid damage.

• Do not allow boots to come into contact with sharp edges or hot engine and exhaust components.

• The drive shaft is not to be used as a lever arm to position other suspension components.

• Never use a hammer or sharp tools to remove or to install boot clamps.

• Be sure joints are thoroughly clean and that the proper amount and type of grease is used to refill when joint boots are replaced and when joints are cleaned. Refer to text for grease capacity of CV joints and CV joint boots.

3.

Clean the grease from the face of the joint.

4.

Place the drive shaft in a soft-jawed vise.

5.

Using a soft-faced hammer, or brass drift, strike inner race of the joint to drive the joint off the drive shaft. Be sure to tap evenly around the joint to avoid binding.

Brass Drift Shown

Outer CV Joint / Boot Replacement

1.

Use a side cutters to cut and discard the boot clamps.

IMPORTANT: Tap on inner race only!

6.

Make sure circlip is on the shaft and not left in the joint.

Circlip

7.36



FINAL DRIVE

7.

Remove the CV boot from the shaft.

CAUTION

13. Grease the joint with the special CV joint grease provided in the boot replacement kit. Fill the cavity behind the balls and the splined hole in the joint’s inner race. Pack the ball tracks and outer face flush with grease. Place any remaining grease into the boot.

Complete disassembly of the CV joint is NOT recommended. The internal components are precision fit and develop their own characteristic wear patterns. Intermixing the internal components could result in looseness, binding, and/or premature failure of the joint.

CAUTION

The grease provided in the replacement kit is specially formulated for wear resistance and durability. DO NOT use substitutes or mix with other lubricants.

IMPORTANT: If the grease in the joint is obviously contaminated with water and/or dirt, the joint should be replaced.

NOTE: It is very important to use the correct type and quantity of grease by using all the grease included with the boot kit. DO NOT use a substitute grease and DO NOT overfill or under fill the CV joint.

Boot Replacement Grease Requirements:

Outer CV Joint Capacity:

Front - 74g / Rear - 90g

Grease Only Service Kit: PN 1350047 (50g)

14. Slide the joint onto the drive shaft splines and align the circlip with the lead-in chamfer on the inner race of the joint.

7

8.

Thoroughly clean the joint with an appropriate solvent and dry the joint to prevent any residual solvent from being left in the joint upon reassembly.

9.

Visually inspect the joint by tilting the inner race to one side to expose each ball. Severe pitting, galling, play between the ball and its cage window, any cracking or damage to the cage, pitting or galling or chips in raceways call for joint replacement.

NOTE: Shiny areas in ball tracks and on the cage spheres are normal. Do not replace CV joints because parts have polished surfaces. Replace CV joint only if components are cracked, broken, worn or otherwise unserviceable.

10. Clean the splines on the end of the shaft and apply a light coat of grease prior to reassembly.

15. Use a soft-faced hammer to tap the joint onto the drive shaft until it locks into place.

16. Pull on joint to make sure it is securely locked in place.

11. Slide the small boot clamp and boot (small end first) onto the drive shaft and position the boot in it’s groove machined in the shaft.

17. Remove excess grease from the CV joint's external surfaces and place the excess grease in the boot.

12. Install a NEW circlip on the end of the shaft.

18. Pull the boot over the joint and position the boot lips into the grooves on the joint housing and shaft. Make sure the boot is not dimpled or collapsed.

7.37



FINAL DRIVE

19. Install and tighten the large clamp using the appropriate clamp tool.

Inner Plunging Joint / Boot Replacement

1.

Use a side cutters to cut and discard the boot clamps.

Axle Boot Clamp Tool: PU-48951 or

CV Boot Clamp Pliers: 8700226

20. While pulling out on the CV shaft, fully extend the CV joint and slide a straight O-ring pick or a small slotted screw driver between the small end of the boot and the shaft. This will allow the air pressure to equalize in the CV boot in the position that the joint will spend most of its life. Before you remove your instrument, be sure the small end of the boot is in its correct location on the shaft.

21. Install and tighten the small clamp on the boot using the appropriate clamp tool.

2.

Remove the large end of the boot from the plunging joint and slide the boot down the shaft.

3.

Clean the grease from the face of the joint.

4.

Place the drive shaft in a soft-jawed vise.

5.

Using a soft-faced hammer, or brass drift, strike inner race of the joint to drive the joint off the drive shaft. Be sure to tap evenly around the joint to avoid binding.

Brass Drift Shown



7.38



FINAL DRIVE

IMPORTANT: Tap on inner race only!

6.

Make sure circlip is on the shaft and not left in the joint.

Circlip

11. Slide the small boot clamp and boot (small end first) onto the drive shaft and position the boot in its groove machined in the shaft.

12. Install a NEW circlip on the end of the shaft.

13. Grease the joint with the special CV joint grease provided in the boot replacement kit. Fill the cavity behind the balls and the splined hole in the joint’s inner race. Pack the ball tracks and outer face flush with grease. Place any remaining grease into the boot.

CAUTION

The grease provided in the replacement kit is specially formulated for wear resistance and durability. DO NOT use substitutes or mix with other lubricants.

7.

Remove the boot from the shaft.

CAUTION

Complete disassembly of the plunging joint is

NOT recommended. The internal components are precision fit and develop their own characteristic wear patterns. Intermixing the internal components could result in looseness, binding, and/or premature failure of the joint.

IMPORTANT: If the grease in the joint is obviously contaminated with water and/or dirt, the joint should be replaced.

NOTE: It is very important to use the correct type and quantity of grease by using all the grease included with the boot kit. DO NOT use a substitute grease and DO NOT overfill or under fill the CV joint.

Boot Replacement Grease Requirements:

Inner Plunging Joint Capacity:

Front - 60g / Rear - 100g

Grease Only Service Kit: PN 1350047 (50g)

14. Fully compress the joint and push the drive shaft firmly into the inner race.

15. Align the circlip with the lead-in chamfer.

7

8.

Thoroughly clean the joint with an appropriate solvent and dry the joint to prevent any residual solvent from being left in the joint upon reassembly.

9.

Visually inspect joint for damage. Replace if needed.

10. Clean the splines on the end of the shaft and apply a light coat of grease prior to reassembly.

16. Use a soft-faced hammer to tap the joint onto the drive shaft until you reach the end of the splines and the joint locks in place.

7.39



FINAL DRIVE

17. Pull on the joint to test that the circlip is seated and that the joint is securely fastened to the shaft.

18. Remove excess grease from plunging joint’s external surfaces and place the excess grease in the boot.

19. Pull the boot over the joint and position the boot lips into the grooves on the joint housing and shaft. Make sure the boot is not dimpled or collapsed.

20. Install and tighten the small clamp using the appropriate clamp tool.

Drive Shaft Exploded View

FRONT SHAFT

Spring Ring

Plunging

Joint

Gear Side

Boot Kit

Grease Capacity

60 Grams

Grease Capacity

74 Grams

Wheel Side

Boot Kit



21. Pull out on drive shaft to center joint in the housing.

Slide a straight O-ring pick or a small slotted screw driver between the large end of the boot and the joint housing and lift up to equalize air pressure in the boot.

22. Position the boot lip in its groove. Install and tighten the large clamp using the appropriate clamp tool.

CV Joint

REAR SHAFT

Rear 4x4 Shown

Spring Ring

Plunging

Joint

Grease Capacity

100 Grams

Gear Side

Boot Kit

Grease Capacity

90 Grams

Wheel Side

Boot Kit

7.40





CV Joint

FINAL DRIVE

REAR PROPSHAFT (6X6)

Removal

1.


Installation

1.

Install the rear propshaft onto the rear gearcase input shaft.

2.

Align the rear propshaft pin hole with the pin hole on the mid gearcase rear output shaft.

3.

Slide the rear propshaft forward onto the mid gearcase rear output shaft and drive a NEW roll pin into the propshaft yoke.

4.

Install the parking brake caliper assembly. Tighten the two mounting bolts in increments and torque to specification.

Roll Pin

Removal Tool


2.

Remove the parking brake caliper assembly from the caliper mount bracket to allow the rear propshaft to slide back on the rear gearcase input shaft.

18 ft. lbs.

(24 Nm)

7

Remove

= T


18 ft. lbs. (24 Nm)

3.

Slide the rear propshaft back on the rear gearcase input shaft, remove the propshaft from the mid gearcase and remove the propshaft from the vehicle.

7.41



FINAL DRIVE

REAR GEARCASE (6X6)

General Operation

The RANGER 6x6 rear gearcase 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 turf and sensitive terrains.

Clutch Gear

Differential - Unlock

Shift Yoke

AWD

Differential - Lock

Differential - Unlock

When “Differential-Unlock” is selected on the switch, the rear differential becomes unlocked for tighter turns. An electrical solenoid mounted in the rear gearcase housing actuates the shift yoke. The solenoid plunger extends out to move the shift yoke and slides the clutch gear away from the engagement dogs that are attached to the differential gear assembly. This unlocks the rear differential.

When switch position is set to “Unlock”, the solenoid is powered and the plunger extends to disengage the clutch gear and unlock the differential.

When “Differential-Lock” is selected on the switch, power is removed from the electrical solenoid allowing the solenoid plunger to retract. Spring tension moves the shift yoke back into place and engages the clutch gear into the engagement dogs that are attached to the differential gear assembly, locking the rear differential as a solid rear axle.

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.

Clutch Gear

Differential - Lock

Shift Yoke

7.42



FINAL DRIVE

When the clutch gear is unlocked the rear drive shafts are dependent on the differential allowing tighter turns. When it’s locked it becomes a solid rear axle increasing traction.

Differential


1.

Follow the “MID / REAR DRIVE SHAFT - Removal” procedure to remove the rear drive shafts from each side of the rear gearcase.

2.

Disconnect the differential solenoid 2-wire harness.

3.

Completely drain the lubricant from the rear gearcase.

Clutch Gear

Axle Shaft

Locked Mode

Clutch Gear

Locked

Axle Shaft

Drain Plug

4.

Remove the (4) bolts that secure the rear gearcase to the frame.

IRS Axle

Unlocked Mode

Axle Shaft

Clutch Gear

Unlocked

Axle Shaft

Remove the (2) fasteners from each side.

5.

Remove the (3) fasteners retaining the parking brake caliper bracket to the rear gearcase and carefully pull the rear gear case assembly from the frame. Allow the rear propshaft to slide off of the rear gearcase shaft.

Bracket

(3)

Propshaft

7

7.43



FINAL DRIVE

Gearcase Disassembly

intended to be disassembled from the case, as it requires special OEM tooling in order to properly reassemble. If there is any damage to the pinion gear, bearings or case, the assembly must be replaced.

Pinion and ring gear shimming information is NOT provided due to OEM manufacturing requirements.

1.

Remove the differential solenoid from the gearcase cover if servicing the solenoid, shift lever, shift lever spring, or shift yoke. If none of these items are being serviced, the solenoid can remain installed in the gearcase cover.

3.

Remove the differential assembly from the housing.

4.

Inspect the bevel gear for chipped, worn, or broken teeth.

Inspect Teeth

2.

Remove the (7) bolts that secure the cover to the housing.

Remove Cover Bolts

5.

Remove the small bearing from the differential assembly. Inspect the bearing for smoothness and wear.

7.44



FINAL DRIVE

6.

Remove the shims from the differential assembly. Be sure to keep the shims together for reassembly.

9.

If the solenoid was removed for servicing, inspect the tip of the solenoid for wear. If the tip of the solenoid is flattened the solenoid must be replaced.

7.

Remove the large bearing from the differential assembly. Inspect the bearing for smoothness and wear.

10. Remove the clutch gear from the gearcase cover.

8.

Remove the shims from the differential assembly. Be sure to keep the shims together for reassembly.

11. Inspect the shift lever (A), shift lever spring (B), shift return springs (C), and shift yoke (D) for excessive wear or damage. If disassembly is required proceed to the next step. If no disassembly is required proceed to “Rear Gearcase Assembly.”

C

D

7



B

A

7.45

FINAL DRIVE

12. Loosen the lock assembly pin.

13. Remove the pin from the gearcase cover.

15. Inspect the shift lever (A), shift lever spring (B), shift return springs (C), shift yoke (D), and lock pin bushing

(E). Inspect the components for excessive wear or damage and replace as needed.

C

A

D

E

C

B

Rear Gearcase Assembly

NOTE: Grease all seals and O-rings with Polaris All

Season Grease (PN 2871322) upon assembly.

1.

Remove the pinion shaft oil seal using a seal puller and replace with a new seal.

14. Carefully remove the shift yoke assembly from the gearcase cover.

NOTE: The pinion gear assembly is NOT intended to be disassembled from the case, as it requires special OEM tooling in order to properly reassemble.

If there is any damage to the pinion gear, bearings or case, the assembly must be replaced.

7.46



Do Not Disassemble.

Replace as an assembly if damaged or worn.

2.

Replace the drive shaft oil seals located in the main gearcase and gearcase cover

FINAL DRIVE

4.

Install the original shims (A) onto the differential assembly (B) on both sides. Install the bearings (C), replace with new bearings if needed.

B

A

C

B

A

C

5.

Install the differential assembly into the carrier housing.

7

3.

Replace all worn components.



7.47

FINAL DRIVE

6.

If previously removed; assembly the shift lever (A), shift lever spring (B), shift return springs (C), shift yoke

(D), and lock pin bushing (E).

9.

Install the new lightly greased O-ring onto the carrier cover.

O-Ring

C

A

D

C

E B

7.

Carefully install the shift yoke assembly into the gearcase cover.

10. Assemble the gearcase halves and install the (7) bolts that secure the cover to the housing. Torque the bolts in a criss cross pattern to 25-35 ft. lbs. (34-48 Nm).

25-35 ft. lbs.

(34-48 Nm)

8.

Install the lock assembly pin and tighten.

11. If previously removed, install the differential solenoid into the carrier cover. Torque solenoid to 30-40 ft. lbs.

(41-54 Nm).

7.48



30-40 ft. lbs.

(41-54 Nm)

Rear Gearcase Installation

1.

Place rear gearcase assembly into the frame. Slide the rear propshaft onto the rear gearcase input shaft.

2.

Install the (4) gearcase mounting fasteners and torque the fasteners to 40 ft. lbs. (54 Nm).

3.

Install the parking brake caliper bracket fasteners and torque the fasteners to 17 ft. lbs. (23 Nm).

Bracket

Propshaft

17 ft. lbs.

23 (Nm)

40 ft. lbs.

(54 Nm)

4.

Connect the differential solenoid 2-wire harness.

5.

Follow the “MID / REAR DRIVE SHAFT - Installation” procedure to reinstall the rear drive shafts.

6.

Add Polaris ATV Angle Drive Fluid (PN 2876160) to rear carrier. Refer to maintenance information in

Chapter 2 for more details. Torque drain plug to 30-

45 in. lbs. (3-5 Nm). Torque fill plug to 40-50 ft. lbs.

(54-68 Nm).

Fill Plug

40-50 ft. lbs.

(54-68 Nm)

Drain Plug

30-45 in. lbs.

(3-5 Nm)

=

Rear Gearcase Lubricant / Capacity:

ATV Angle Drive Fluid / 18 fl. oz. (532 ml)



FINAL DRIVE

7.49

7

FINAL DRIVE

Rear Gearcase Exploded View

40-50 ft. lbs.

(54-68 Nm)

30-45 in. lbs.

(3-5 Nm)

70-90 ft. lbs.

(95-122 Nm)

25-35 ft. lbs.

(34-48 Nm)

30-40 ft. lbs.

(41-54 Nm)

R

EF

# D

ESCRIPTION

1 Hypoid Gear Assembly

2 Carrier Housing Half

3 Carrier Cover Half

4 Diff Case Half

5 Diff Case Cover Half

6 Diff Side Gear

7 Diff Pinion Mate Gear

8 Pinion Mate Thrust-Washer

9 Diff Cross Pin

10 Diff Roll Pin

11 Hex Bolt - Ring Gear

12 Diff Case Thrust-Washer

13 Side Gear Thrust-Washer

14 Diff Case Thrust-Washer

7.50

Q

TY

R

EF

#

1

2

2

1

1

1

1

2

1

1

8

AR

1

AR

D

ESCRIPTION

Q

TY

15 Bearing Cone - Diff

16 Bearing Cup - Diff

17 Bearing - Roller

18 Bearing - Cup

19 Bearing Assembly - Collar

20 Clutch Gear

21 O-Ring - Housing Halves

22 Lock Assembly Pin 1

23 Vent Tube 1

24 Flanged Hex Bolt - Housing 7

1

1

1

1

1

1

1

25 Diff Solenoid

26 Spacer - Kit

27 Bearing Cup - Pinion

28 Bearing Cone - Pinion

1

AR

2

2

R

EF

# D

ESCRIPTION

29 Pinion Nut

30 Oil Seal - Pinion

31 Pinion Thrust-Washer

32 Lock Pin Bushing

33 Shift Return Spring

34 Drain Plug

35 Oil Seal - Shaft

36 Fill Plug

37 Shift Yoke

38 Shift Lever

39 Shift Lever Spring

40 Pinion Spacer



Q

TY

1

1

AR

1

2

1

2

1

1

1

1

1

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