TRACTION DRIVE BELT

REPLACEMENT

NOTE: Housing and frame must be tipped apart and attachment drive belt removed from engine sheave in order to change traction drive belt (Figures 18 and 19).

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.

1.Remove attachment drive belt (See Remove Attachment Drive Belt).

2.Pull idler away from traction drive belt and remove belt from idler, camshaft pulley and driven pulley (it may be necessary to turn camshaft pulley using recoil starter handle).

NOTE: To gain clearance, engage traction clutch and if necessary pull back attachment idler arm.

3.Replace traction drive belt making sure pulleys align. If alignment is necessary, loosen camshaft pulley set screws, reposition pulley and retighten set screws.

4.Replace attachment drive belt (See Replace Attachment Drive Belt).

ATTACHMENT CLUTCH/BRAKE ADJUSTMENT

WARNING: IMPROPER ADJUSTMENT could result in unexpected movement of auger and impeller causing death or serious injury. AUGER / IMPELLER MUST STOP within 3 seconds when Attachment Clutch/Impeller Brake Bail is released.

WARNING: Adjustment procedure requires the engine to be run with the belt cover off. AVOID INJURY. Read and understand the entire Safety section before proceeding.

1.Remove belt cover.

2.Check belt alignment (Figure 19).

Engine sheave and attachment pulley must align vertically. Also, belt must be centered in the idler pulley.

To align, move engine sheave: a.Loosen set screws.

b.Slide sheave and key to desired position.

c.Tighten set screws. 3. Adjust cable slack.

IMPORTANT: The clutch cable must be slack when clutch bail is disengaged.

a.Center the upper cable adjuster on the mounting bracket, if necessary (Figure 20).

Upper Cable

 

Adjuster

 

Figure 20

OS2460

b.With the clutch bail disengaged, loosen the control cable mounting nuts on the attachment clutch arm (Figure 23).

c.Pull up on the cable body to remove cable slack.

d.Finger tighten mounting nuts and then loosen the top nut five turns.

e. Tighten the bottom nut with a wrench.

4.Check attachment clutch bail measurement.

a.Start engine and run at full throttle.

b.Slowly squeeze the attachment clutch bail until auger shaft begins to rotate.

c.Measure the distance from the end of the clutch bail to the handlebar as shown in Figure 22. The distance between the clutch bail and the handlebar should be 3-1/2 ± 1/8 in. (8.9 cm ± 3 mm).

d.Shut off engine.

5.Adjust attachment clutch bail measurement, if necessary.

a.Loosen idler nut (Figure 19).

b.To increase distance between clutch bail and handlebar, move the idler towards the attachment belt.

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Ariens 932508 - 624, 932038 - 5520, 932037 - 724 manual Traction Drive Belt Replacement, Attachment CLUTCH/BRAKE Adjustment

932508 - 624, 932505 - 724, 932507 - 520, 932039 - 624, 932037 - 724 specifications

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