Traction Drive Systems
6.The axle can now be removed from the chassis. Inspect the gear, the roll pin, and the areas where the bearings contact the axle for damage or severe wear. Remove the thrust washers from either end of the axle. The purpose of the roll pin and thrust washers is to limit the side to side movement of the axle.
7.Disconnect the two clevis pins on the shift linkage rods.
8.Next to the friction wheel is a large eyebolt, which is connected to the shift linkage (Figure 74). Remove the flange nut and washer from the end of the eyebolt. Note the location and type of washers. You should be able to slip the linkage off of the eyebolt. If not, loosen the shoulder screw that the linkage pivots on.
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Figure 74 |
1. Flange nut/eyebolt
9.There is a spring connected between the left front corner of the pivot shaft (that contains the friction wheel) forward to a tab on the chassis. Unhook one end of this spring (Figure 75).
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Figure 75 |
10.The pivot shaft, which contains the friction wheel, is retained by two shoulder bolts. They pass through the side plate, into the ends of the shaft. Remove these two bolts and the pivot assembly will slide out of the chassis (Figure 76).
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Figure 76 |
1. Shoulder bolt
11.To disassemble the pivot assembly, proceed as follows (Figure 77):
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Figure 77 |
1. Hex shaft bearing
A.The drive chain contains a master link. Separate that and remove the chain.
B.To remove the friction wheel, remove four cap screws securing the hex shaft bearings. Slide the bearings off the ends of the hex shaft.
C.The hex shaft can now be removed from the pivot assembly.
D.If the friction wheel is to be replaced, remove the four screws and lock nuts connecting it to the traction drive hub.
Two Stage Snowthrower Drive Systems Manual | 3 - 3 |