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Owner Service 19
MAN0884 (08/15/2011)
Auger Drive Shear Bolt Replacement
■ Always use approved shear bolt as replace-
ment part. Using a hardened bolt or shear pin may
result in damage to driveline or gearbox.
Remove any obstructions from the auger, chain, or
drive sprocket.
Remove auger drive shield (1) by removing 3/8 NC
Whiz Nuts (3).
Remove damaged bolt from shear plates on auger
drive sprocket (5) and/or auger drive shaft (4).
Rotate drive sprocket to align holes in sprocket and
shaft. Install new shear bolt and secure with lock nut.
Tighten to torque specification given on Torque Chart.
Figure 11. Auger Drive Shear Bolt Replacement
Discharge Chute Lubrication
1. Apply grease between the discharge chute base
and ring on the frame tube, Figure 12, annually.
Figure 12. Chute Base and Rotator Ring
Gearbox
The gearbox is almost maintenance-free, but should be
checked quarterly to be sure that the oil level is main-
tained at half full. A high quality gear oil with a viscosity
index of 80W or 90W and an API service rating of GL-4
or -5 is recommended for use in the gearbox. Oil
should be changed after the first 30 hours or 30 days of
operating. Then, normal change should be adequate.
In the case of seasonal usage, it is best to change the
oil at the end of the season to remove moisture and
corrosive contaminants.
■ Before proceeding, read and follow all safety
rules.
To change the oil, follow this procedure, Figure 13:
1. Suction out oil in gearbox through side plug using a
hand pump.
NOTE: It is best to drain the oil when the gearbox
is warm to remove the most contaminants.
2. Add 1.27 quart SAE 85W90 gear oil through side
plug. Use level hole (halfway up the backside of
gearbox) to check oil level. Add oil accordingly.
3. Install and tighten plug.
Figure 13. Gearbox Oil
1. Auger Drive Shield
3. 3/8 NC Whiz Nut
4. Auger Drive Shaft
5. Auger Drive Sprocket
PIC3
WARNING
Oil Plug
DP8