Polaris Sportsman 850 Service Manual page 370

STEERING / SUSPENSION
12. Install new lock nut and torque to specification.
TORQUE
Shock Rod Nut:
18 ft-lbs (24 Nm)
13. Secure the shock body assembly into a vise for
service.
14. Fill the remote reservoir 3/4 full with shock oil.
Polaris Gas Shock Oil - 5 wt.
PN 2870995 - qt.
PN 2872279 - 2.5 gal.
15. Install IFP without bleed screw. Install the IFP into
the reservoir.
16. Press IFP downward until 1/4" (6.35 mm) of shock oil
is on top of the IFP.
17. Install a new O-ring on the IFP bleed screw and
install the screw. Tighten the screw.
18. Install the IFP tool and push IFP bore until bottomed.
19. Fill the main shock body with shock oil until it is 2"
(50.8 mm) from the top of the shock body.
20. Pass a torch over the shock body to remove any air
bubbles from the oil.
8.40
21. Insert the shock rod/piston assembly into shock
body. Be sure the piston wear band stays in the
proper position. Do not install bearing assembly at
this time.
22. Press shaft downward. Rotate and wiggle the shaft
as it submerges in the shock oil until no more air
bubbles rise out of the shock oil.
23. Hold pressure downward on IFP tool. Stroke shock
rod assembly up and down 1/4" (6.35 mm) to work
the air bubbles out of the piston and piston ports.
24. Slide the bearing assembly partially into the shock
body.
25. Tap shock rod eyelet with a rubber mallet 3-5 times
to remove any trapped air from the valve shims.
26. Slide bearing assembly up and pass a torch over the
shock body to remove any air bubbles from the oil.
27. Add shock oil to 1/8" (3.18 mm) below the top of the
shock body.
28. Wrap a clean shop towel around top of shock body
and depress the bearing assembly downward below
the retaining ring groove.
29. Install the bearing assembly retaining ring and clean
excess shock oil. Properly dispose of shop towel.
30. Add shock oil to reservoir until it is 1" (25.4 mm)
above the top of the IFP.