Simplicity 7800084, 7800085, 7800138 DRIVE BELT ADJUSTMENT Continued, Ad iustmP.nts, Belt Cover

DRIVE BELT ADJUSTMENT (Continued)

If the auger drive slips (auger slows or doesn't rotate nor- mally while blowing snow), or stays engaged when the control is disengaged -- and the auger clutch cable has been properly adjusted -- the auger drive belt may be out of adjustment.

WARNING

Auger must NOT rotate unless the Auger Control lever has been depressed. Proper Auger Drive

Belt adjustments stop the auger within 5 seconds after the Auger Control is disengaged.

Checking Auger Belt & Belt Guide

Adjustments

1.Insert the engine key and start the snowthrower.

2.Engage and disengage the auger control a series of ten times, checking that the auger comes to a com- plete stop within 5 seconds after the control is disen- gaged each time.

3.If the auger comes to a complete stop each time with- in 5 seconds, the adjustment is correct. If the auger does NOT come to a complete stop within the neces- sary 5 seconds, the adjustment is incorrect: readjust- ing the auger belt & belt guide according to the pro- cedures below.

Adjusting Auger Drive Belt

1.Make certain that the snowthrower is off, the engine

key has been removed, and the spark plug discon- nected.

2.Check that there is no slack in the auger drive clutch cable (see Figure 24). If there is, follow the auger drive clutch cable Adjustment procedure on page 24.

3.Measure the length of the auger drive clutch spring (Figure 24).

4.Fully depress the auger control and measure the expanded length of the spring.

The spring should expand 19/64"-5/16". If the spring deflection is less than 19/64"-5/16" the auger idler pulley must be adjusted. Proceed to step 5.

5.Loosen the belt cover screws and remove the belt cover (Figure 23)

6.Loosen the adjustment bolt (see Figure 25) and move the auger idler pulley.

7.Tighten the adjustment bolt and repeat steps 3-4.

8.Test run the unit. The auger must NOT rotate unless the auger control lever has been depressed. Proper auger drive belt adjustments stop the auger within 5 seconds after the auger control is disengaged. If the auger drive fails either of these tests, repeat the

Ad_iustmP.nts

Auger Control _

Belt Cover _

Figure 23. Auger Control and Belt Cover Location

AugerDrive._%						'__		_)//	_-/_
Clutch Cable				__		_)___
Adjustment			---------_				_	\ __\
HexNut				,______					_------
Measure		Spring		_.\	_	_\	//	)/_"_
Length,		Spring		/"	_	_\	//t	\,_	\
Should		Expand							\
5/16	When		Auger			/#	_	/ _L--_----"/r_
is Engaged					/			_Y_(_
			Idler Rod				Right	Handle	_,_
									\-
Figure 24. Auger Drive Clutch Cable
Auger	Idler
Pulley

Auger Idler

Arm

Adjustment	Auger
Bolt
	Drive Belt
©

Figure 25. Auger Drive Belt, Guide and Pulley

adjustment procedures.

,After adjusting the auger drive belt, the auger belt guide MUST BE adjusted according to the Adjusting Auger Belt Guide procedure which follows.

25