Polaris 850 MATRYX INDY XC 129 2021 Manual page 563

15. Slowly Insert the IFP into the reservoir using the T-
handle tool. Allow as much air as possible to escape
while the IFP is installed.
16. Slowly stroke the IFP up and down to bleed air from
the shock. be sure to bottom-out the IFP in the
reservoir. Allow sufficient time for all air bubbles to
dissipate. Repeat this process until all air is removed.
17. Set the IFP to the required specification from the top
of the reservoir.
18. Remove the T-handle tool and install the O-ring and
bleed screw.
9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual
© Copyright Polaris Inc.
STEERING / SUSPENSIONS
19. Locate the bearing cap to the required specification
from the valve stack on the shock rod.
20. Fill the shock body with oil. Dip the piston valve stack
into the oil. Fill the shock body with oil to the bottom of
the cap threads.
21. Slightly oscillate the piston rod to allow the piston to
enter shock body bore as it purges the air out.
22. With the piston completely submerged in oil, cycle the
rod in and out to remove any remaining trapped air
underneath the piston
23. When all of the air is removed, push the assembly
down until the threads engage the tube. Torque
bearing cap to specification.
TORQUE
Seal Head / Bearing Cap:
45 ft-lbs (61 N·m)
24. Verify there is shock oil above the IFP in the reservoir.
25. Slowly pull the shock rod out till the shock is fully
extended.
26. Remove the bleed screw and O-ring from the IFP.
27. Set the IFP depth to specification. Reinstall the O-ring
and bleed screw.
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