Ariens 924 SNO-THRO 924112 Service Manual download pdf (Page 31)

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9.1 AUGER/IMPELLER REMOVAL

Place unit in the belt service position, (Figure 27).

1. Remove bolt holding pulley to shaft and remove

pulley.

2. Remove three nuts holding bushing flange to

housing and remove flange on each side.

3. Grasp auger assembly and pull gear case and

auger/impeller assembly free of housing.

4. Remove shear bolts and remove auger from shaft.

5. Check all parts for wear or replacement.

Install Auger Assembly into New Blower Housing

1. Position new blower housing on work surface.

2. Install runners and scraper blade.

3. Install drive bearing flange onto rear of blower

housing. Loosely install 3 nuts onto bearing flange.

4. Install spacer, bearing flange, bronze flange

bushing and washer or polymer bearing and rake

shaft bearing housing to rake shaft.

5. Slide auger and rake assembly into new housing

with drive shaft through rear drive bearing flange in

housing.

6. Fasten spacer and bearing flanges or rake shaft

bearing housings to blower housing with hardware

removed earlier.

7. Tighten 3 nuts on rear drive bearing flange to

114 lbf-in (12.8 Nm).

8. Reinstall hub/attachment pulley onto shaft.

9.2 SCRAPER BLADE

IMPORTANT: If blade wears too far auger/impeller

housing may be damaged.

Scraper blade is adjustable to compensate for wear

(Figure 27).

To adjust scraper blade:

1. Tip unit back onto handlebar and support the

housing.

2. Loosen retaining blade nuts (Figure 18).

3. With runners adjusted to their full up position,

reposition scraper blade down, flush with runners.

4. Tighten lock nuts.

9.3 SHEAR BOLTS

IMPORTANT: Use only Ariens shear bolts for

replacement. Use of any other type of shear bolt may

result in severe damage to unit.

Occasionally an object may enter auger/impeller

housing and jam auger, breaking shear bolts which

secures auger to shaft. This allows auger to turn freely

on shaft preventing damage to gear drive.

To replace shear bolt:

1. Slide auger outward against roll pin and align hole

in shaft with hole in auger (Figure 27) (holes in

shaft for roll pins and shear bolts line up).

2. Drive the new shear bolt through hole (if shear bolt

was broken this will drive remaining part from

shaft).

3. Secure with nut.

SECTION 9 - AUGER/IMPELLER

WARNING: Stop engine, remove key, wait for

moving parts to stop and remove wire from

spark plug before leaving operator’s position

and attempting to maintain or inspect auger.

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Ariens 924 SNO-THRO 924112 Service Manual Page 31

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