MTD 500 series Shop Manual page 100

Medium Frame 2 & 3 Stage Snow Throwers
2. Install the large holed washers and hex bushings
onto the gear shaft.
3. Install the small holed washers and the spring onto
the Gear Shaft.
4. Install the lock nut. Tighten it to a torque of 35 - 50 in
lbs (4 - 6 Nm). See Figure 8.33.
5. Install the Pinion Bushing in the Gear Support
Bracket.
6. Install the Gear Shaft Assembly into to Support
Bracket.
7. Test the Gear Shaft for binding.
NOTE: It should take 20 in lbs of torque to rotate the
shaft. The lock nut on the shaft can be tight-
ened to increase the resistance or loosened
to decrease the resistance.
8. Set the Pinion Shaft into the Gear Set so that the
travel stop is 3/4" from the edge of the bracket. See
Figure 8.34.
9. Set the Gear Set into the Remote Head Housing.
NOTE: Lubricate all friction surfaces with Renolit
Polar Grease part number 937-04085.
10. Install the four screws that secure the housing to the
Support Bracket. Tighten the screws to a torque of
20 - 30 in lbs (2 - 3 Nm).
11. Attach the Remote Head to the chute.
NOTE: Ensure that the flat washer is trapped
between the Pinion Gear and the chute. See
Figure 8.35.
12. Set the Remote Head and chute on the machine.
13. Install the wing nut, bow tie clip and clevis pin that
secures the Remote Head to the mast.
14. Slide the crank into the Remote Head.
15. Install the hair pin clip that attaches the shaft to the
Remote Head.
16. Test run the snow thrower in a safe before returning
it to service.
96
Figure 8.33
Figure 8.34
Flat Washer
Figure 8.35
3/4"