Auger Gearbox Repair; Lubrication; Gearbox Disassembly & Repair - Toro Power Max Service Manual

AUGER GEARBOX

AUGER GEARBOX REPAIR

Lubrication

The proper lubricant is 90-weight gear oil. A multi-weight
such as 85-120 is acceptable as long as it encompasses
the 90-weight rating. The oil must also have an extreme
pressure (EP) rating of GL5 or higher. With the gearbox
setting approximately level, fi ll until oil runs out of the fi ll/
check plug. Total capacity is about 4 oz. (118ml).
Gearbox Disassembly and Repair
1. All models use a cap screw and locknut to secure
the augers to the auger shaft. Remove the cap
screw and slide the auger off of the shaft (Fig. 088).
2. The impeller is attached to the impeller shaft with
two cap screws and locknuts. Remove the cap
screws and slide the impeller off of the shaft.
3. Even if you have drained the oil, we recommend
supporting the gearbox over a drain pan when you
separate the case halves. Remove the screws and
separate the case halves.
7-6
Fig 088
MVC-900XA
4. The impeller shaft can now be removed (Fig. 089).
C
A. Ring
B. Impeller Shaft/Worm
5. Clean the output shaft and slide the case halves off.
Remove and discard the seals.
6. Clean and inspect the auger shaft bushings in the
case halves. If they are damaged or worn, press
them out of the case halves at this time.
7. Slide the worm gear off of the shaft. Remove the
woodruff key.
8. Slide the bushing, thrust washers, thrust bearing,
snap ring, and seal from the impeller shaft.
A
Fig 089
DSC-0061
C. Worm gear
Power Max Service Manual
B