Install new attachment drive belt:

1.Place new attachment belt onto attachment pulley.

NOTE: Holding down the attachment clutch lever will make it easier to reconnect the housing and frame.

2.Tip housing and frame back together and secure with hex bolts.

3.Place belt onto engine sheave.

4.Reposition and secure belt fingers.

IMPORTANT: With clutch lever engaged, belt finger on the side opposite the belt idler should be less than 1/8 in. (3 mm) from belt, but not touching the belt. Adjust belt finger as necessary.

5.Check adjustment. See Attachment Clutch/Brake Adjustment on page 25.

WARNING: AUGER / IMPELLER MUST STOP within 5 seconds when attachment clutch lever is released or unit damage or serious injury may result.

6.Reconnect chute crank and secure with spring clip. Reconnect chute lock cable and deflector cable.

7.Replace belt cover.

TRACTION DRIVE BELT REPLACEMENT

NOTE: Replacement will be easier with housing and frame tipped apart and bottom cover off.

1.Remove attachment drive belt (see Attachment Clutch/Brake Adjustment on page 25).

2.To gain belt clearance, back out the stop bolt from the frame until the drive plate assembly can swing past it (Figure 35).

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

4.Install new traction drive belt onto attachment pulley and engine sheaves.

5.Pull the drive plate assembly toward the friction disc and tighten the stop bolt.

NOTE: Make sure the drive plate assembly return spring remains connected to the frame.

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

FRICTION DISC REPLACEMENT

1.Place unit into service position.

2.Remove bottom cover by removing six hex bolts.

3.With axle locked, hold one wheel so friction disc will not rotate and remove three cap screws holding friction disc to carrier.

4.Remove both wheels.

5.Remove right and left bearing flanges from frame.

6.Slide hex shaft to the left enough to remove pinion sprocket from hex shaft.

7.Slide hex shaft to the right enough to remove friction disc.

8.Slide new friction disc onto hex shaft.

9.Install pinion sprocket and chain on hex shaft, then replace bearing flanges.

10.Hold wheel so friction disc will not rotate and secure new friction disc to carrier with three hex screws removed in step 3.

11.Replace wheels.

12.Replace bottom cover.

13.Adjust traction drive clutch (see Traction Drive Clutch Adjustment on page 26).

1

2

3

1

4

1

5

8

 

 

1

7

6

 

1. Cap Screw

 

5. Bearing Cap

2. Hex Screw

 

6. Idler Hex Shaft

3. Friction Disc

 

7. Drive Plate Assembly

4. Pinion Sprocket

 

8. Stop Bolt

Figure 35

OS7225

 

GB - 28