Ariens Sno-Thro ST5520E Owner's/Operator's Manual page 21

3. Remove spring pin from chute crank and
separate.
4. Remove belt finger by removing cap
screw mounting belt finger to engine
(Figure 20).
5. Remove attachment drive belt from
engine sheave (it may be necessary to
turn engine sheave using recoil starter
handle).
CAUTION: Always support Sno-Thro
frame and housing when loosening
the cap screws holding them
together. Never loosen cap screws
while unit is in service position.
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.
6. Support Sno-Thro frame and housing.
7. Remove top two cap screws and loosen
lower two cap screws holding blower
housing to frame (one on each side).
8. Separate housing from unit. Lower
handlebar on floor.
9. Remove attachment drive belt from
lower pulley (hold brake away from belt).
1
2
7
1. Pinion and
Gear
2. Belt Cover
3. Spring Pin
4. Chute Crank
Figure 19
Replace Attachment Drive Belt
1. Place new belt onto lower pulley and
while holding brake out of way, tip unit
together.
2. Secure blower housing to frame with cap
screws.
3. Place belt onto engine sheave.
4. Replace belt finger.
3
4
5
6
5. Bottom Cover
6. Belt Cover
Screw
7. Housing Bolt
Holes
IMPORTANT: BELT FINGER MUST BE
between 1/16 to 1/8 in. (1.6–3 mm) from belt
with attachment clutch engaged or belt
grabbing may occur causing impeller to rotate
while attachment clutch is disengaged
(Figure 21).
5. Adjust clutch per Attachment
Clutch/Impeller Brake Adjustment below.
6. Replace chute crank and secure with
spring pin.
7. Replace belt cover and secure with cap
screws.
1
9
8
1. Attachment
Drive Belt
2. Engine
Sheave
3. Traction Drive
Belt
4. Camshaft
Pulley
1/16 to 1/8 in. (1.6 – 3 mm)
OS7240
1
1. Belt Finger
2. Belt
GB - 21
2
7
6
3
5. Traction Belt
Idler
6. Attachment
Pulley
7. Attachment
Idler Nut
8. Attachment
Belt Idler
9. Belt Finger
Figure 20
2
1/16 to 1/8 in.
(1.6 – 3 mm)
Figure 21
4
5
OS7325
2
1
OS7250