Murray 624804X31 Manuel D'instructions page 16

12. (Figure 16) Install the bolts (5) on each side
of the motor mount frame (6).
13. Tighten the bolts (3) on each side of the mo-
tor mount frame (6).
14. (Figure 13) Install the belt cover (1). Tighten
screw (2).
15. Check the adjustment of the cables. See
"How To Check And Adjust The Cables" in
the Maintenance section.
16. Connect the spark plug wire.
How To Remove the Traction Drive Belt
If the snow thrower will not move forward, check
the traction drive belt for wear or damage. If the
traction drive belt is worn or damaged, replace
the belt as follows.
1. (Figure 2) Remove the gas from the gas
tank. Stand the snow thrower up on the front
end of the auger housing (4).
WARNING: Drain the gasoline out-
doors, away from fire or flame.
2. Disconnect the spark plug wire.
3. Remove the auger drive belt. See "How To
Remove The Auger Drive Belt" in the Mainte-
nance section.
4. (Figure 14) Pull the traction drive idler
pulley (12) away from the traction drive
belt (13).
5. Remove the old traction drive belt (13) from
the traction drive pulley (14) and from the
engine pulley (15). Replace the traction
drive belt (13) with an original factory re-
placement belt available from an authorized
service center.
6. Install the new traction drive belt (13) onto
the traction drive pulley (14) and onto en-
gine pulley (15).
7. Make sure the traction drive idler pulley
(12) is properly aligned with the traction
drive belt (13).
8. Install and adjust the auger drive belt (4).
See "How To Remove The Auger Drive Belt"
in the Maintenance section.
9. Adjust the belt guide (9). See "How To Ad-
just The Belt Guide" in the Maintenance sec-
tion.
10. (Figure 16) Install the bolts (5) on each side
of the motor mount frame (6).
11. Tighten the bolts (3) on each side of the mo-
tor mount frame (6).
12. (Figure 13) Install the belt cover (1). Tighten
screw (2).
13. Check the adjustment of the cables. See
"How To Check And Adjust The Cables" in
the Maintenance section.
14. Connect the spark plug wire.
How To Adjust The Belt Guide
1. Disconnect spark plug wire.
2. (Figure 13) Remove screw (2). Remove the
belt cover (1).
3. (Figure 2) Engage the auger drive lever (5).
4. (Figure 17) Measure the distance between
the belt guide (2) and auger drive belt (3).
The correct distance (4) is 1/8 inch (3.175
mm).
5. If an adjustment is necessary, loosen the
mounting bolt for the belt guide (2). Move
the belt guide (2) to the correct position
(4). Tighten the mounting bolt for the belt
guide (2).
F–001043J
6. (Figure 13) Install the belt cover (1). Tighten
screw (2).
7. Connect the spark plug wire.
How To Adjust Or Replace The Friction
Wheel
How To Check The Friction Wheel
If the snow thrower will not move forward, check
the traction drive belt, the traction drive cable or
the friction wheel. If the friction wheel is worn or
damaged, it must be replaced. See "How To
Replace the Friction Wheel" in this section. If the
friction wheel is not worn or damaged, check as
follows.
1. (Figure 2) Remove the gas from the gas
tank. Stand the snow thrower up on the front
end of the auger housing (4).
WARNING: Drain the gasoline out-
doors, away from fire or flame.
2. Disconnect the spark plug wire.
3. (Figure 16) Remove the bolts (1) on each
side of the bottom panel (2).
4. Loosen the bolts (3) on each side of the bot-
tom panel (2).
5. Remove the bottom panel (2).
6. (Figure 2) Position the shift speed lever (6)
in the first forward gear.
7. (Figure 18) Note the position of the friction
wheel (4) on the disc drive plate (5). In the
correct position (7), the right outer side of
the disc drive plate (5) must be three inches
(7.62cm.) from the center of the friction
wheel (4). If the friction wheel (4) is not in
the correct position (7), adjust as follows.
How To Adjust The Friction Wheel
1. (Figure 19) Loosen the bolts (1) on the
speed control rod (8).
2. (Figure 18) Move the friction wheel (4) to
the correct position (7).
3. (Figure 19) Tighten the bolts (1) on the
speed control rod (8).
4. (Figure 16) Install the bottom panel (2).
5. Tighten the bolts (3) on each side of the bot-
tom panel (2).
6. Install the bolts (1) on each side of the bot-
tom panel (2).
How To Replace The Friction Wheel
If the friction wheel is worn or damaged, the
snow thrower will not move forward. The friction
wheel must be replaced as follows.
1. (Figure 2) Remove the gas from the gas
tank. Stand the snow thrower up on the front
end of the auger housing (4).
WARNING: Drain the gasoline out-
doors, away from fire or flame.
2. Disconnect the spark plug wire.
3. (Figure 16) Remove the bolts (1) on each
side of the bottom panel (2).
4. Loosen the bolts (3) on each side of the bot-
tom panel (2).
5. Remove the bottom panel (2).
6. (Figure 19) Remove the speed control rod
(8) from the spring lever (9).
16
7. (Figure 20) Remove the three fasteners (4)
that hold the friction wheel (5) to the hub
(6).
8. (Figure 10) Remove the four bolts that hold
the bearing plates (7) on each side of the
hex shaft (8).
NOTE: Take special note of the position of
the washers and retaining ring on the hex
shaft (8) and the sprocket assembly.
9. Remove the bearing plate (7) from the right
side. Do not remove the hex shaft (8). Leave
the hex shaft (8) in position. Carefully raise
hex shaft (8) just enough to allow the fric-
tion wheel (3) to be removed.
10. (Figure 20) Remove the friction wheel (5)
from the hub (6). Slip the friction wheel (5)
toward the right off the hex shaft (8).
11. Assemble the new friction wheel (5) onto
hub (6) with the fasteners removed earlier.
12. (Figure 10) Install the bearing plate (7) onto
the right side. Make sure the hex shaft (8) is
engaged with both bearing plates (7) and
that the washers and retaining ring are
installed in the original position.
13. Fasten the bearing plates (7) using the four
bolts removed earlier.
14. Make sure the hex shaft (8) turns freely.
15. (Figure 19) Attach the speed control rod
(8) to the spring lever (9).
16. Check the adjustment of the friction wheel.
See "How To Adjust The Friction Wheel" in
this section.
17. Make sure the friction wheel and the disc
drive plate are free from grease or oil.
18. (Figure 16) Install the bottom panel (2).
19. Tighten the bolts (3) on each side of the bot-
tom panel (2).
20. Install the bolts (1) on each side of the bot-
tom panel (2).
21. Connect the spark plug wire.
How To Replace the Auger Shear Bolt
The augers are secured to the auger shaft with
special shear bolts. These shear bolts are de-
signed to break and protect the machine if an
object becomes lodged in the auger housing.
Do not use a harder bolt as the protection pro-
vided by the shear bolt will be lost.
WARNING: For safety and to pro-
tect the machine, use only original
equipment shear bolts.
To replace a broken shear bolt, proceed as fol-
lows. Extra shear bolts were provided in the as-
sembly parts bag.
1. (Figure 2) Move the throttle control (13) to
the stop position. Disengage all controls.
2. Disconnect the spark plug wire. Make sure
all moving parts have stopped.
3. (Figure 9) Lubricate the auger shaft Zerk
fitting (1) with a grease gun.
4. (Figure 21) Align the hole in the auger with
the hole in the auger shaft. Install the new
shear bolt (2), spacer (3) and locknut (4).
5. Connect the spark plug wire.
How To Prepare The Snow Thrower For
Storage
WARNING: Do not remove gasoline
while inside a building, near a fire,
or while you smoke. Gasoline
fumes can cause an explosion or a fire.
1. Drain the fuel tank.
ENGLISH