Ariens 924 User Manual download pdf (Page 54)

Gear Case

8.1 Introduction

WARNING: Remove wire from spark plug

before attempting any repair or adjustment

procedures.

When unit is tipped to preform the service proce

dures in this section, remove enough fuel so that no

spillage will occur, block securely and remove bot

tom cover.

WARNING: Gasoline is highly flammable

and its vapors are explosive. Handle with

care.

Remove Auger/Impeller and gear case from housing

per instructions in Auger/Impeller Section to pre

form the following service procedures.

8.2 Cast Iron Gear Case (Worm Gear)

Remove four bolts from bearing flange.

Remove flange and gasket.

NOTE: At this point bronze gear cannot be re

moved.

Using bearing adjustment wrench remove adjust

ment 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, simply remove

bolt and washer from end of shaft.

Assembly is done by inserting bronze and worm gear

at same time.

Using adjustment wrench, tighten down on adjust

ment 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 (Part No. 000080). Use

approximately 5 oz.

8.3 Aluminum Gear Case (Worm Gear)

Remove (6) six bolts that hold right and left gear-

case halves together.

If flange bushings need replacement, first remove

seals from outside of gearcase halves with a screw

driver. 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 flat on the

flange of bushing fits in the inside notch of case.

There are (2) 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 resis

tance. Flat on bronze gear face's fill hole side of

gearcase.

Remove bronze bushing from front of worm shaft

by sliding it off. If replacement is necessary, replace.

Notice a flat on the bushing flange when installed

sets against flat in gearcase.

Behind rear bronze bushing is an "0-Ring" which

fits into a groove in 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, again

drive out groove pin towards direction of least

resistance.

8-6

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Ariens 924 User Manual Page 54

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