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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.
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).
WARNING: AUGER / IMPELLER MUST
STOP within 5 seconds when attachment
clutch lever is released or unit damage or
serious injury may result.
Figure 35
OS7225
1.Cap Screw
2.Hex Screw
3.Friction Disc
4.Pinion Sprocket
5.Bearing Cap
6.Idler Hex Shaft
7.Drive Plate Assembly
8.Stop Bolt
1
2
3
1
5
6
1
1
8
7
4