GB - 21
SCRAPER BLADE
IMPORTANT:
Damage to auger/impeller
housing will result if blade wears down too
far.
Scraper blade is adjustable to compensate
for wear.
To adjust scraper blade:
1. Tip unit back onto handlebar, support
housing and loosen nuts retaining blade.
2. Adjust runners to fully raised position
(housing closest to ground).
3. Reposition scraper blade flush with
runners and tighten lock nuts.
RUNNERS
Runners should be adjusted as conditions
require (Figure 13).
1. Position unit on a hard, flat, smooth level
surface.
2. Adjust runners by inserting a spacer of
desired thickness under center of
scraper blade, loosen runner hardware,
slide runners to flat surface. Allow 1/8 in.
(3 mm) between scraper blade and hard
smooth surfaces. Allow 1-1/4 in.
(30 mm) between scraper blade and
uneven or gravel surfaces. Retighten
hardware.
NOTE:
Keep housing level by adjusting
runners equally.
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 a foreign object may enter the
auger/impeller housing and jam the auger,
breaking shear bolts which secure the auger
to the shaft (Figure 14). This allows auger to
turn freely on the shaft which may help
prevent damage to gear case and its
components.
For Replacement:
1. Align shear bolt holes in auger with
shear bolt holes in the shaft.
2. Drive shear bolt through hole (if shear
bolt was broken this will drive remaining
part from shaft).
3. Secure shear bolt with nut.
NOTE:
DO NOT overtighten the shear bolt.
Tighten shear bolt to 5.8 – 12.2 lbf-ft (7.9 –
16.5 N•m).
SERVICE AND ADJUSTMENTS
WARNING:
AVOID INJURY. Read
and understand the entire Safety
section before proceeding.
Figure 13
2
1
OS0482
1. Runner
2. Runner Hardware
Figure 14
1
2
1. Auger
2. Shear Bolts
2
