Manual

Gear Case
Inspect worm for burrs or black coloration. If either
show up, replace shaft.
To assemble make sure you replace the case gasket
and make sure flats on bushings are in their proper
place.
This case requires No. 70 Liquid Grease and should
be half full.
After assembly is completed you should be able
to turn input shaft freely.
Auger/impeller gear case is lubricated with Ariens
Liquid Grease (Part No. 000070). This grease will
not flow at lower temperatures. It is therefore
difficult to check lubricant level. Best method for
checking is to place unit in a warm location over
night. This allows grease to flow to level. Check
lubrication by removing filler plug on side of gear
case just above left auger shaft. Lubrication should
be even with hole with machine sitting level. It may
be necessary to insert a wire into hole to check
level. Unit will not be damaged by over lubricating.
8.4 Cast Iron Gear Case (Helicon Gear)
To remove Gear Case from Auger/impeller Housing
refer to Auger/impeller Section.
Tools Required:
Open End Wrench - 7/16"
Ratchet Wrench with 7/16" socket
Hammer
Punch-5/16", 3/8"
Screwdriver (two required)
AriensToolsNo. 37, No. 90, No. 130 & No. 131
Remove pipe plug and drain oil. Use 7/16" Open
End Wrench.
Remove cap screws holding flange and remove
flange and gasket.
Insert punch through oil filler hole and drive roll
pin out of helicon gear just far enough to clear
shaft.
Pull out front gear shaft.
After shaft is removed, it is possible to remove
helicon gear by tipping to clear pinion shaft.
Unscrew adjustment plug. (Use No. 90 Bearing
Adjustment Wrench.)
Insert punch through the oil filler hole and drive
pinion shaft assembly out of gearcase.
Remove bearing cup and snap ring from inner por
tion of gearcase only if necessary.
To assemble proceed as follows:
Pin helicon gear on front gear shaft.
Insert front gear shaft assembly into gear case.
Install in helicon pinion shaft assembly and drive in
bearing cup. Use No. 131 Bearing Driver.
Install new seal against shoulder in adjustment plug.
On adjustment nuts, insert the seal so that top of
seal is flush with bottom of the spanner slot or
about 1/32 of an inch below the bottom of the nut.
Use No. 130 Seal Driver.
Seal the adjusting nut in position by putting a
small bed of gasolia sealer in the gear case threads.
The nut will drag the sealer around threads. Tighten
adjustment nut until a slight drag is felt while
turning the pinion shaft.
Use No. 90 Bearing Adjustment Wrench.
Check the oil level in the snow rotar gear case. Tip
machine back on handlebars. Remove filler and
drain plugs. Fill with Ariens Gear Oil (SAE MP90)
until it runs out the drain. Replace drain and filler
plugs.
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