Murray 621401x61NB, Instruction Book

Page: 13 / 200

GB
13
1740260
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
√
Check Adjustment of Auger Control Cable
√
Auger Drive Belt
√
MAINTENANCE
NOTE: Illustrations are located on page 2
and on pages 3 through 6.
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.
WARNING: Before you make an in-
spection, adjustment (except
carburettor), or repair, disconnect
the wire from the spark plug.
General Recommendations
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.
Some adjustments must be made periodically to
properly maintain the snow thrower.
After Each Use
G
Check for any loose or damaged parts.
G
Tighten any loose fasteners.
G
Check and maintain the auger.
G
Check controls to make sure they are
functioning properly.
G
If any parts are worn or damaged, replace
immediately.
G
Check all safety and instruction decals and
labels. Replace any decals or labels that are
missing or cannot be clearly read.
All adjustments in the Maintenance section of
this manual should be checked at least once
each season.
How To Remove The Top Cover
(Figure 8)
1. Remove the five screws (1) from the top
cover (2).
2. Remove the top cover (2).
3. To install the top cover (4), reverse the
above steps.
Lubrication
Before Storage (Figure 8)
1. Lubricate the clute control flange (7). Apply
a clinging type of grease such as Lubriplate.
How To Adjust The Auger Control Cable
The auger control cable is adjusted at the facto-
ry. During normal use, the auger control cable
can become stretched and the auger drive lever
will not properly engage or disengage the auger.
1.
(Figure 12) Loosen the nut (1) that holds the
cable tension spring (2) .
2. Slide the cable tension spring (2) toward
the rear of the unit until all cable slack is re-
moved.
NOTE: The auger control cable is properly
adjusted when the free cable slack is re-
moved and there is no tension on the
idler arm.
3. Tighten the nut (1) that holds the cable ten-
sion spring (2) .
If belt stretch has occured, move the end the
auger control cable to the outside hole as fol-
lows:
1.
(Figure 12) Loosen the nut (1) that holds the
cable tension spring (2) .
2. Move the cable tension spring (2) toward
the front of the unit to achieve maximum
cable slack.
3. (Figure 11) Remove the upper end of the
auger control cable (3) from the auger
drive lever (4).
4. Install the auger control cable (3) in the
hole shown in Figure 11.
5. (Figure 12) Slide the cable tension spring
(2) toward the rear of the unit until all cable
slack is removed.
NOTE: The auger control cable (3) is
properly adjusted when the free cable
slack is removed and there is no tension
on the idler arm.
6. Tighten the nut (1) that holds the cable ten-
sion spring (2) .
7. To check the adjustment, start the snow
thrower. Make sure the auger does not rotate
when the auger drive lever is released.
How To Remove The Top Cover
(Figure 10)
There are no adjustments under the top cover
(1). To clean the engine cooling system, follow
the steps below to remove the top cover (1).
1. Remove screws (2) that attach the rod sup-
port clamp the the top cover (1). Pivot the
crank assembly rod (3) up and lay on unit.
2. Remove screws (4).
3. Remove attachment screws (5).
4. Remove the top cover (1) .
5. To install the top cover (1), reverse the
above steps.
How To Remove The Belt Cover
(Figure 9)
1. Remove the screws (1) and nuts (2) from
the belt cover (3).
2. Remove attachment screw (4) from the rear
of the belt cover (3).
3. Remove the belt cover (3) from the unit.
4. To install the belt cover (3), reverse the
above steps.
NOTE: The belt cover (3) has belt guides
moulded onto the inside of the belt cover (3).
When you install the belt cover (3), engage
the auger drive lever to tighten the belt
against the pulley. This will provide adequate
clearance for the belt guides when installing
the belt cover (3).
How To Replace The Auger Drive Belt
The drive belt is of special construction and
must be replaced with an original factory re-
placement belt available from your nearest au-
thorized service center.
If the auger drive belt is damaged, the snow-
thrower will not discharge snow and will not
move forward. Replace the damaged belt as
follows:
1. Disconnect the spark plug wire.