10 - 35
10.1 CAST IRON GEAR CASE (WORM
GEAR)
Remove auger/impeller and gear case from housing
referring to Auger/Impeller Section.
Remove four bolts from bearing flange (Figure 32).
Remove flange and gasket.
NOTE: At this point bronze gear cannot be removed.
Using bearing adjustment wrench remove adjustment
plug.
While holding input shaft in one hand and using a
mallet, strike case until bearing cone pops out of the
case.
Bronze gear can then be removed from case.
After bronze gear is removed, input shaft can then be
removed.
NOTE: It is not necessary to remove the end cap from
case.
To remove worm gear and bearings, remove bolt and
washer from end of shaft. Then remove the bearing,
spacer, worm spacer, and bearing.
Assembly is done by inserting bronze and worm gear
at same time.
Using adjustment wrench, tighten down on adjustment
plug until input shaft is snug.
Replace side cover using a sealant on threads of two
bottom bolts.
Fill gear case with L-2 oil until level reaches bottom of
threads in filler hole.
Check oil level periodically. Oil level must be up to oil fill
hole. Change oil every 25 hours or once each season,
whichever comes first. Fill with Ariens Special L-2 Gear
Lubricant (P/N 000080). Use approximately 5 oz.
10.2 ALUMINUM GEAR CASE
Remove auger/impeller and gear case from housing
referring to Auger/Impeller Section.
Remove eight bolts that hold right and left gear case
halves together (Figure 33).
If flange bushings need replacement, first remove
seals from outside of gearcase halves with a
screwdriver. Flange bushings can then be pressed out
from outside in with a bearing driver. Bushings are very
lightly pressed in.
When replacing bushings make sure the flat on the
flange of bushing fits in the inside notch of the case.
There are two special washers, one on either side of
bronze gear. If burred or worn they should be replaced.
Holding bronze gear on rake shaft is a groove pin.
When driving out, drive in direction of least resistance.
the flat on bronze gear face will fill the hole in the side
of the gearcase.
Remove bronze bushing from front of worm shaft by
sliding it off. Replace if necessary. Notice that a flat on
the bushing flange positions the bearing inside the
gearcase.
Behind the rear bronze bushing is a seal which fits into
a groove in the gearcase. It should be replaced at time
of repair.
Rear bushing is a larger diameter than one in front, but
are identical in design. Replace if necessary.
If replacement of thrust collar is necessary, drive out
groove pin towards direction of least resistance.
Inspect worm for burrs or black coloration. If either
show up, replace shaft.
To assemble, make sure the case is sealed using
Loctite and make sure the flats on the bushings are in
their proper place.
This case requires 8 oz. L-2 lube (P/N 00008000) and
should be half full.
After assembly is complete you should be able to turn
input shaft freely.
Auger/impeller gearcase is lubricated with Ariens L-2
lube (P/N 00008000). Lubrication should be even with
inspection hole with unit sitting level. Unit will not be
damaged by over-lubricating.
SECTION 10 - GEAR CASE
Summary of Contents for 924 Snow-Thro
Page 40: ...11 40 Model 924517 PS0891 PS0850...
Page 41: ...11 41 Model 924516 PS0672...
