ENGLISH
MAINTENANCE CHART
CUSTOMER RESPONSIBILITIES
SERVICE RECORDS
Fill in dates as you
complete regular
service.
Before
Each
Use
First
2
Hours
Every
5
Hours
Every
10
Hours
Every
25
Hours
Each
Season
Before
Storage
SERVICE DATES
Check And Tighten All Screws and Nuts
√
√
Check Spark Plug
Check Drive Belt
Check Fuel
√
√
√
√
Drain Fuel
√
√
Lubricate Chute Control Flange
MAINTENANCE
7. Carefully pull the rear of the top cover (4) up How To Remove The Belt Cover
and over the gas tank.
(Figure 6)
NOTE: Illustrations begin on page 3.
8. To install the top cover (4), reverse the
1. If equipped, remove the heat shield (12)
from the rear of the belt cover (13).
above steps.
Use the following maintenance section to keep
your unit in good operating condition. All the
maintenance information for the engine is in the
engine manufacturer’s instructions. Before you
start the engine, read this book.
2.
Remove the four bolts and nuts (14) holding
the belt cover (13) to the auger housing.
Lubrication
3. Remove the one screw (15) holding the belt
cover (13) to the bottom cover (16).
Before Storage (Figure 5)
4.
To remove, hold the bottom portion of the
WARNING: Before you make an in-
spection, adjustment (except
carburettor), or repair, disconnect
the wire from the spark plug.
1.
Remove the top cover (3). See “How To Re-
belt cover (13) and pull down and out.
move The Top Cover”.
Lubricate the clute control flange (7). Apply
5. To install the belt cover (13), reverse the
above steps.
2.
a clinging type of grease such as Lubriplate.
How To Replace The Drive Belt
General Recommendations
The drive belt is of special construction and
must be replaced with original factory replace-
ment belt available from your nearest authorized
service center.
1. Remove the belt cover. See “How To Re-
move The Belt Cover”.
How To Adjust The Chute Crank
If the chute crank will not rotate fully to the left or
right, adjust as follows.
The warranty on this snow thrower does not cov-
er items that have been subjected to operator
abuse or negligence. To receive full value from
the warranty, the operator must maintain the
snow thrower as instructed in this manual.
1.
Remove the top cover. See “How To Remove
The Top Cover”.
2.
3.
(Figure 7) Loosen nuts (1).
2.
(Figure 10) Remove the drive belt (1) from
the idler pulley (2).
Some adjustments must be made periodically to
properly maintain the snow thrower.
Move the crank adjusting bracket (2) to
allow 1/8 inch (3mm) clearance (3) between
the notch in the flange (4) and the outer di-
ameter of the worm gear (5).
3. Remove the drive belt (1) from the engine
pulley (3). Be careful, not to bend the belt
guides (4).
4. (Figure 11) Remove the drive belt (1) from
the auger pulley (5).
G
Check for any loose or damaged parts.
After Each Use
4.
Tighten the nuts (1).
G
G
G
Tighten any loose fasteners.
Check and maintain the auger.
5.
6.
Remove the old drive belt (1).
To install the new drive belt (1), reverse the
above steps.
How To Adjust The Auger Control Cable
The auger control cable are adjusted at the fac-
tory. During normal use, the auger control cable
can become stretched and the auger drive lever
will not properly engage or disengage the auger.
Check controls to make sure they are
functioning properly.
7.
8.
Make sure the drive belt (1) is seated prop-
erly on the pulleys.
NOTE: When the auger control lever is
engaged, the belt guides (4) must be 1/16”
from the drive belt (1).
G
If any parts are worn or damaged, replace
immediately.
1.
(Figure 8) Remove the “Z” hook (1) from
the auger drive lever (2).
All adjustments in the Maintenance section of
this manual should be checked at least once
each season.
2. (Figure 9) Slide the cable boot (3) off the
cable adjustment bracket (4).
3. Push the bottom of the auger control cable
Install belt cover. See “How To Remove The
Belt Cover”.
(5)
(4)
Remove the “Z” hook (6) from the cable
adjustment bracket (4). Move the “Z” hook
(6)
Pull the auger control cable (5) up through
the cable adjustment bracket (4).
Put the cable boot (3) over the cable ad-
justment bracket (4).
(Figure 8) Install the “Z” hook (1) to the au-
ger drive lever (2).
through the cable adjustment bracket
until the “Z” hook (6) can be removed.
How To Replace The Auger (Figure 12)
1.
2.
3.
Remove the belt cover. See “How To Re-
move The Belt Cover”.
How To Remove The Top Cover
4.
(Figure 5)
Remove the drive belt. See “How To Replace
The Drive Belt”.
Remove the auger pulley (1) from the auger
shaft (threads are left hand; turn clockwise to
remove).
1.
2.
3.
Remove the discharge chute (1).
Remove the fuel cap.
Remove the two bolts and nuts (2) from the
front of the top cover (3).
down to the next adjustment hole.
5.
6.
7.
4.
5.
6.
Remove the two bolts (4) from the left and right
side of the top cover (3).
Remove the eight screws (5) on the left and
right side of the top cover (3).
Remove the three screws (6) from the top por-
tion of the control panel.
4.
To keep the auger (6) from rotating, set a
2”x4” piece of wood (2) on the center
paddle (3) to secure auger (6).
8. To check the adjustment, start the snow
thrower. Make sure the auger does not rotate
when the auger drive lever is released.
12
5. Remove the fasteners from the bearing as-
sembly (4). Remove the bearing assembly
(4) from the auger housing (5).
F-031023C
| Categories | Murray Snow Blower Manuals, Snow Blower Manuals |
|---|---|
| Tags | Murray 621450X4NB |
| Download File |
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| Document File Type | |
| Copyright | Attribution Non-commercial |
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