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7.63Replace Auger Shear Bolts
7.64Replace Impeller Shear Bolts
IMPELLER SHEAR BOLTS ( 49 )
AUGER SHEAR BOLTS ( 28 )
CAUTION: Only OEM shear bolts should be used. Use of other hardware may result in se- vere damage to the auger or the gearbox and result in expensive repairs.
28 179828 Shoulder Bolt, Auger
49 74780426 Screw, Hex Head
7.65Disassembly of Auger Pulley, Auger, Impeller, and Auger Housing
1)Separate Auger Assembly from powerhead of Snowthrower (Section 7.61).
2)Remove the 1⁄2” bolt and washers that hold the auger drive pulley in place using the belt to prevent pulley from turning.
3)Remove the auger drive pulley from the impeller shaft. It may be necessary to use a gear puller for this. If so, it may help to put a small socket between the gear puller screw and the shaft.
4)Using emery cloth, clean and smooth the surface of the shaft.
5)Remove the right and left side bolts (3/8") that hold the auger bearings in place.
6)Holding the Auger pull up to remove the impeller assembly from the auger housing. It may be necessary to use a file to smooth edges of keyway on the shaft so the shaft will slide through the bearing.
7)To replace the auger remove shear bolts and pull away from gearbox shaft.
8)To replace impeller remove shear bolts and pull away from shaft.
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