Murray 405001x78B manual Where To Lubricate Figure, How To Replace The Motion Drive Belt

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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)

Models with grease fittings:

Lubricate with grease gun. Apply grease with a brush to

the areas shown. Lubricate the areas shown with engine oil.

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”.

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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

F-030771L

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Contents Instruction Book 30x49 14x79 17x192 25x3 17x195 17x146 1001054 17x47 030771L 17x192 2x82 14x79 25x320729 17x146 17x47Contents OWNER’S InformationII. Slope operation IV. ServiceGeneral Operation III. ChildrenSafe Mowing Guide Page While Mowing Steps to FollowBefore Mowing After MowingAssembly Operation Maintenance How To Check And Adjust The Clutch Figure How To Adjust The Blade Rotation ControlHow To Adjust The Shift Lever Figure How To Check And Adjust The DriveHow To Replace The Mower Drive Belt Figure Where To Lubricate FigureHow To Replace The Motion Drive Belt How To Remove The Mower Housing FigureTrouble Shooting Chart 030771L 030771L Repair Parts Key Description Motion Drive Motion Drive Steering Repair Parts Repair Parts Mower Housing Suspension Mower Housing Suspension Mower Housing Complete Mower Housing Assembly Repair Parts Engine Mount Engine Mount Electrical System Key Part Description 030771L