User guide

ADJUSTMENTS/ MAINTENANCE
Ariens Company recommends that you have adjustments made
by your local Aliens dealer. He has the tools and know-how to
properly perform these maintenance adjustments which may be
required to keep the Sno-Thro operating at peak efficiency. The
Sno-Thro is equipped with the finest quality engine obtainable.
However, should servicing be required, it can be obtained from
an Ariens dealer or an authorized engine manufacturer’s service
station. Should you decide to make adjustments on your Sno-
Thro yourself, Ariens recommends that you call your dealer for
the answers to any questions that might arise in performing this
work.
SHEAR BOLT REPLACEMENT - FIGURE 2
Occasionally an object may enter the blower and jam the rakes.
When this occurs, the shear bolts securing the rakes to the shaft
will break and allow the rake to turn freely on the shaft preven
ting damage to the gear drive. When this happens, turn off the
engine, remove wire from spark plug, remove the broken shear
bolt and replace with a new ARIENS shear bolt. Use of any other
type of shear bolt may result in severe damage to the machine.
USE ONLY ARIENS SHEAR BOLTS FOR REPLACEMENT. Each
time a shear bolt is replaced (and once each year) the rake
should be rotated on the shaft and the shaft lubricated. Refer to
“LUBRICATION” section.
RUNNERS AND SCRAPER BLADE — FIGURES 2 & 3
The runners on each side of the blower housing, and the scraper
blade, along the bottom of the housing, are all adjustable to suit
conditions. Raising or lowering the runners controls the distance
the scraper blade is held above the surface being cleared. Run
ners are adjusted by loosening the two nuts securing each run
ner. Move the runner to the desired position and retighten the
nuts. Be sure to adjust both runners to the same height to keep
blower housing level. Uneven runners make the machine difficult
to steer and will result in an uneven clearing job.
Adjustment of the runners is critical to good cleaning. If the
machine is to be used on a gravel surface lower the runners so
the blower will not pick up gravel. After the remaining sno.w is
packed down, the runners may be raised for close scraping. On
smooth concrete or blacktopped surfaces, the runners may be
raised so the scraper blade rests on the surface and scrapes
clean.
The runners may be removed from the blower housing and re
installed in upside-down position to reduce contact area and thus
reduce tendency to ride up when clearing hard-packed snow.
The scraper is adjustable so it may be lowered to compensate for
wear. See Page 12 illustration. Loosen locknuts securing
scraper blade to adjust. Retighten locknuts. If the blade Is al
lowed to wear down too far the blower housing may be damaged.
ATTACHMENT CLUTCH ADJUSTMENT — FIGURES 4 &
5
The Attachment Clutch is adjusted by connecting the spring on
the clutch rod into the proper link on the Clutch Lever. Properly
adjusted, the spring should be slightly extended with the clutch
lever down. This should occur without the Attachment Activator
Lever touching the hub. If the Activator Lever touches the hub,
the attachment idler (Figure 9) must be adjusted in the idler arm.
Loosen the cap screw on the idler and move idler IN TOWARD the
belt. Readjust the spring in the chain for proper action.
Make sure that all linkage works freely so that blower idler snaps
quickly and freely to disengaged position when Attachment
Clutch Lever is released. Make sure that the blower impeller
(fan) comes to a quick (5 seconds) stop when Attachment Clutch
Lever is released.
NOTE: SEE, ALSO. “ASSEMBLY AND PRE-SERVICE” SECTION
OF THIS MANUAL.
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