Ariens Sno-Thro 924117 - 1024 User Manual download pdf (Page 25)

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TRACTION DRIVE CLUTCH

ADJUSTMENT

If drive slips, adjust traction clutch to

compensate for friction disc wear.

To adjust traction clutch:

1. Place speed selector in First (1) Forward.

2. Place unit in service position.

3. With traction clutch disengaged turn

wheels while tightening adjustment nut

(Figure 17), at clutch yoke.

4. Engage and release traction clutch.

5. Turn wheels to check for slight drag.

6. Repeat steps 3 - 5 until wheels begin to

drag.

7. Turn adjustment nut back three turns.

Wheels will then turn freely.

DRIVE CHAIN

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

To compensate for looseness or excessive

tightness in drive chain:

1. Put unit into service position.

2. Remove bottom cover by removing four

cap screws.

3. Loosen nuts on idler hex shaft

(Figure 21). Adjust the idler hex shaft in

slot as necessary. Torque the nut to

70-146 lbf-in (7.9 - 16.5 N•m).

ATTACHMENT DRIVE BELT

REPLACEMENT

Remove old attachment drive belt:

1. Shut off engine and allow to cool

completely.

2. Remove belt cover (Figure 19).

3. Remove spring clip from chute crank to

remove chute crank.

4. Remove hardware holding chute strap to

engine bracket and lift discharge chute off

housing.

IMPORTANT: Disconnect remote cap

deﬂector and/or electric chute wire harness (if

equipped) before proceeding.

5. Loosen cap screws and carefully rotate

belt ﬁngers away from belt and sheave

(Figure 20).

IMPORTANT: Use care when rotating the belt

ﬁngers. DO NOT bend belt ﬁngers out of

shape.

6. Remove attachment drive belt from

engine sheave (it may be necessary to

turn engine sheave using recoil starter

handle).

IMPORTANT: To avoid bending bottom cover

when tipping unit apart, support handlebars

ﬁrmly or tip unit up on housing and remove

bottom cover by removing four cap screws

before separating unit.

7. Support Sno-Thro frame and housing.

8. Remove cap screws securing housing to

frame (one on each side). Tip housing

and frame apart on pivot pins (Figure 19).

9. Remove attachment drive belt from

attachment pulley (hold brake away from

belt).

Figure 18

1/16

in (1,6

mm)

1

2

1. Drive Belt

2. Brake Shoe and Pad

OS0660

CAUTION:

Always support Sno-Thro

frame and blower housing when

loosening the cap screws holding

them together. Never loosen cap

screws while unit is in service

position.

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