Polaris 2007 Sportsman 450 EFI, Service Manual

Page: 285 / 406

8.17
GENERAL INFORMATION
8
6. Inspect the shift drum for any damage or wear. Inspect the
splines of the shift drum. Replace the O-rings on the end of
the shift drum and lubricate them before assembly.
7. Stretch the silent chain on a flat surface and measure the
length of 8 pitches in a minimum of three places on the
chain. Replace the chain if the measurement is longer than
3.0904” (7.8496 cm) .
8. The shift drum (C), reverse shaft (D), input shaft (E), and
output gear assembly must be installed at the same time to
properly align all components.
NOTE: To ease assembly use a plastic tie strap to hold
the shift forks (D) and the shift drum (C) together during
assembly.
9. With the gearcase on it’s side, hold the gear cluster
assembly and output assembly together. Carefully install
each shaft into their respective recess in the gearcase.
10. With all of the components in the correct positions install
the 4 output gear assembly screws. Apply Loctite™ 262
(
PN 2871952 ) to the threads of the screws. Torque the
screws to 8-12 ft.lbs. (11-17 Nm) . NOTE: If the
transmission is in locked in Park, place the transmission in
Neutral.
Silent Chain Length:
3.0904” (7.8496 cm)
D
E
C