Murray 405001x78B, Instruction Book, Page: 14 / 32

GB
14
F-030771L
WARNING: Before you make an in-
spection, adjustment, or repair to
the unit, disconnect the wire to the
spark plug. Remove the spark plug wire to
prevent the engine from starting by acci-
dent
1. Make sure the unit is on a hard flat surface.
2. Check the air pressure in the tyres. If the air
pressure is incorrect, the mower housing will
not cut level. Make sure the tyres are inflated
to: Front Tyres 0.97 BAR (14 PSI) , Rear
Tyres 0.69 BAR (10 PSI) .
3. (Figure 13) Move the lift lever (1) to the
lowest cut position (2).
WARNING: The lifter lever (3) is
spring loaded. Make sure the lift
lever (3) is locked in the lowest cut
position (2).
4. (Figure 14) Loosen the left and right ad-
juster knobs (1). Push down on each side of
the mower housing. Make sure both sides of
the mower housing are setting on a flat sur-
face. Also, make sure the lift links are loose
and can easily move up or down.
5. Push down on the lift links (2) and tighten
the left and right adjuster knobs (1). Make
sure the adjuster knobs (1) are tight. If
necessary, use a wrench to tighten the ad-
juster knobs (1).
6. (Figure 13) Raise the lift lever (1).
7. Mow for a short distance. If the height of cut
is not level, repeat the above steps.
Where To Lubricate (Figure 15)
Lubricate the areas shown
with engine oil.
Apply grease with a brush to
the areas shown.
Models with grease fittings:
Lubricate with grease gun.
NOTE: Apply grease to the steering gear as-
sembly.
CAUTION: If the unit is operated in dry areas
that have sand, use a dry graphite spray to
lubricate the unit.
Check The Tyres
Check the air pressure in the tyres. Tyres with
too much air pressure will cause the unit to ride
rough. Also, the wrong air pressure will keep the
mower housing from cutting level. The correct
air pressure is: Front Tyres 0.97 BAR (14 PSI) ,
Rear Tyres 0.69 BAR (10 PSI) .
How To Replace The Motion Drive Belt
1. Remove the mower housing. See the instruc-
tions on “How To Remove The Mower Hous-
ing”.
2. Completely push the pedal forward and en-
gage the parking brake.
3. (Figure 16) Remove the idler pulley (1).
4. (Figure 17) To access the belt guides (1),
remove the battery and battery tray. See
“How To Remove The Battery”.
5. Loosen the belt guides (1) at the drive
pulley (2).
6. (Figure 16) Remove the motion drive belt
(3) from the drive pulley (4).
7. (Figure 18) Remove the adjuster nut (2)
from the shifter bracket (3). Pull the motion
drive belt over the shifter bracket (3).
8. (Figure 19) To remove the motion drive belt
(1) from the stack pulley (2), pull the front
end of the belt under the stack pulley (2)
and then back between the stack pulley and
the steering plate (3).
9. (Figure 20) Remove the access panel (1).
10. Remove the two screws (4) that attach the
steering shaft assembly (2). Raise the
steering wheel and steering shaft assembly
(2). Pull the motion drive belt (3) under the
steering shaft assembly (2).
11. Remove the motion drive belt. A correct re-
placement part or assistance is available
from an Authorized Service Centre in your
area.
12. To install the motion drive belt, reverse the
above steps.
13. (Figure 21) Check the routing of the motion
drive belt (1). Make sure the motion drive
belt is installed correctly on the idler pulley
(2). Make sure the steering shaft assembly
(3) is inside the motion drive belt (1).
How To Replace The Mower Drive Belt
(Figure 10)
1. Remove the mower housing. See the instruc-
tions on “How To Remove The Mower Hous-
ing”.
2. Pull the belt retainer (1) away from the idler
pulley (2) and remove the mower drive belt
(3).
3. Pull the belt retainer (4) away from the right
mandrel pulley (5) and remove the mower
drive belt (3).
4. Pull the belt retainer (4) away from the left
mandrel pulley (6) and remove the mower
drive belt (3). A correct replacement part or
assistance is available from an Authorized
Service Centre in your area.
5. To install the mower drive belt, reverse the
above steps.
How To Remove The Mower Housing
(Figure 22)
1. Move the blade rotation control (1) to the
DISENGAGE position.
2. Move the lift lever (2) to the level adjust-
ment position.
3. Remove the hair pins and the washers from
the adjuster arms (3). See illustrations “C”
and “D”.
4. Remove the hair pins and washers from the
suspension links (4). See illustrations “A”
and “B”.
5. Disconnect the extension spring (5) from
the blade control rod (6). See illustration
“E”.
6. Disconnect the front hanger (9) from the
axle support. See illustration “F”.
7. Remove the mower drive belt (7) from the
stack pulley (8).
8. Pull the mower housing away from the right
side of the unit.
9. To install the mower housing, reverse the
above steps.
How To Replace The Fuse
If the fuse is blown, the engine will not start.
Remove the fuse and replace with a 15 amp.
automotive fuse.
Storage (over 30 days)
At the end of each year, prepare the unit for stor-
age as follows.
1. Drain the fuel from the carburettor and the
fuel tank. Change the engine oil. See the en-
gine manufacturer’s instructions.
2. Clean the entyre unit.
3. Charge the battery.
How To Order Replacement Parts
The replacement parts are shown either on the
back pages of this Instruction Book or in a sep-
arate Parts List Book.
Use only manufacturer’s authorized or approved
replacement parts. The letter placed on the end
of the part number denotes the type of finish for
the part, C for chrome, Z for zinc, a PA for pur-
chased assembly. It is important that you include
this when ordering a part. Do not use attach-
ments or accessories not specifically recom-
mended for this unit. In order to obtain proper
replacement parts you must supply the model
number of your mower (see nameplate).
Replacement parts, except for the engine, trans-
mission, transaxle or differential, are available
from the store where the mower was purchased
or a service shop recommended by the store.
If you are unable to obtain parts or service in the
manner outlined above, then contact: Murray,
Inc., International Sales, PO Box 268, Brent-
wood, TN 37024, USA. Fax (615) 373-6633.
Replacement parts for the engine, transaxle, or
transmission, are available from the manufac-
turer’s authorized service centre found in the
commercial pages of the telephone directory.
Also, see the individual engine or transmission
warranties to order replacement parts.
When ordering the following information is re-
quired:
(1) The Model Number
(2) Serial Number
(3) Part Number
(4) Quantity