Ariens SNO-THRO 924326-ST1336LE User Manual download pdf (Page 18)

Attachment Clutch/Impeller Brake

AUGER / IMPELLER MUST STOP within 5 seconds

when Attachment Clutch / Impeller Brake lever is

released or unit damage or serious injury may result.

To Properly Adjust Attachment Clutch / Impeller Brake:

1. Remove belt cover. Adjust attachment clutch with

both clutch lever and clutch arm in disengaged

position. Spring should expand approximately 3/8”

(9,5mm) beyond free state when clutch is engaged.

Clutch arm at the lower end will then return to its

maximum down position. When clutch is disengaged

there should be a slight amount of slack in the

attachment cable. There should be a slight amount

of slack in the cable to allow for brake wear.

Spring extension is to be obtained only by proper

positioning of the attachment idler.

Move the attachment idler toward the belt to

increase spring extension. Approximately 1/8" {3,2

mm) movement of the idler will increase spring

extension by 1/8" ((3,2 mm). Spring should extend

approximately 3/8" (9,5 mm) when clutch is engaged

but allow clutch arm (at lower end) to return to it's

maximum down position when clutch is disengaged.

To check and/or adjust impeller brake, tip unit

forward onto auger/impeiler housing. Remove

bottom cover by removing four cap screws.

Measure distance between impeller brake shoe pad

and belt with attachment clutch engaged (Figure 15).

Impeller brake shoe should be 1/16" (1,6 mm)

minimum from belt. When attachment clutch is

disengaged, brake must contact belt.

Drive Beit

Brake Shoe

and pad

1/16" (1,6 mm)

minimum

between Shoe

Pad and Beit

Figure 15

Traction Drive Clutch

Adjust traction clutch to compensate for wear of friction

wheel when slippage occurs.

To adjust traction clutch, place speed selector in First (1)

Forward and tip unit forward onto housing.

With traction clutch disengaged turn wheels while

tightening adjustment nut (Figure 14), at clutch yoke,

until wheels begin to drag. Engage and release traction

clutch to align clutch linkage. Repeat as necessary.

When wheel drag is obtained with linkage aligned, turn

nut back three turns. Wheels will then turn freely.

Speed Selector

1. Tip unit fonAfard onto housing.

2. Remove cotter pin (Figure 14) and pull shift rod out

of chassis until it stops, put speed selector lever into

reverse panel notch. Two notches are available,

place in last notch (Figure 16).

3. Adjust length of shift rod until rod end passes into

hole on selector lever arm.

4. Tighten jam nut (Figure 14).

5. Install rod into arm hole and secure with cotter pin.

Drive Chain

Chain should be taut with little or no play in it. To

compensate for looseness or excessive tightness in

drive chain.

1. Remove bottom cover by removing four cap screws.

2. Loosen two nuts on reduction shaft (Figure 9), move

reduction sprocket up or down equally in slot as

necessary and torque the nuts to 14-15 ft. lbs.

(18,6-20,0 Nm).

Ariens® 924 Sno-Thro

Rev. 9/98

1 2 ... 13 14 15 16 17 18 19 20 21

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Ariens SNO-THRO 924326-ST1336LE User Manual Page 18

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