Murray 405001x78B manual Maintenance, Before Starting The Engine

Models: 405001x78B

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Before Starting The Engine

3.To start again, make sure the shift lever is in the slowest speed. Move the throttle control to the SLOW position. Slowly release the pedal.

4.If you must stop or start on a hill, always have enough space for the unit to roll when you release the brake and engage the clutch.

5.Be very careful when you change directions on a hill. When on a slope or in a turn on a hill, move the throttle control to the SLOW position to help prevent an accident.

Before Starting The Engine

Check the oil

NOTE: The engine was shipped from the fac- tory filled with oil. Check the level of the oil. Add oil as needed. See the engine manufac- turer’s instructions for the type of petrol and oil to use.

1.Make sure the unit is level.

NOTE: Do not check the level of the oil while the engine runs.

2.Check the oil. Follow the procedure in the engine manufacturer’s instructions.

3.If necessary, add oil until the oil reaches the FULL mark on the dipstick. The quantity of oil needed from ADD to FULL is shown on the dipstick. Do not add too much oil.

Add Petrol

WARNING: Always use a safety petrol container. Do not smoke when adding petrol to the fuel tank.

Do not add petrol when you are inside an enclosure. Before you add petrol, stop the engine and let the engine cool for several minutes.

(Figure 6) Fill the fuel tank (1) to the FULL (2) position with regular unleaded petrol. Do not use premium unleaded petrol. Make sure the petrol is fresh and clean. Leaded petrol will increase deposits and shorten the life of the valves.

How To Start The Engine

WARNING: The electrical system has an operator presence system that includes a sensor switch for

the seat. These components tell the electrical system if the operator is sitting on the seat. This system will stop the engine when the operator leaves the seat if the blade rotation control is engaged or if the transmission is engaged. For your protection, always make sure this system operates correctly.

NOTE: The engine will not start unless you depress the clutch/brake pedal or engage the parking brake and move the blade rotation control to the DISENGAGE position.

1.Push the brake pedal completely forward. Keep your foot on the pedal.

2.Move the shift lever to the neutral (N) posi- tion.

3.Make sure the blade rotation control is in the DISENGAGE position.

F-030771L

4.Move the throttle control completely forward to the CHOKE or FAST position. Some mo- dels have a separate choke knob. Pull the choke knob to the full CHOKE position.

5.Turn the ignition key to the START position.

NOTE: If the engine does not start after four or five tries, move the throttle control to the FAST position. Again try to start the engine. If the engine will not start, see the

TROUBLE SHOOTING CHART.

6.Slowly move the throttle control to the SLOW position.

7.To start a hot engine, move the throttle con- trol to a position between FAST and SLOW.

Mowing And Bagging Tips

1.For a lawn to look better, check the cutting level of the mower housing. See “How To Level The Mower Housing” in the Mainten- ance section.

2.For the mower housing to cut level, make sure the tyres have the correct amount of air pressure.

3.Every time you use the unit, check the blade. If the blade is bent or damaged, immediately replace the blade. Also, make sure the nut for the blade is tight.

4.Keep the blade(s) sharpened. Worn blades will cause the ends of the grass to turn brown.

5.Do not cut or bag grass that is wet. Wet grass will not discharge correctly. Let the grass dry before cutting.

6.Use the left side of the mower housing to trim near an object.

7.Discharge the cut grass onto the mowed area. The result is a more even discharge of cut grass.

8.When you mow large areas, start by turning to the right so that the cut grass will dis- charge away from shrubs, fences, driveways, etc. After one or two rounds, mow in the op- posite direction making left turns until fin- ished.

9.If the grass is very high, cut two times to de- crease the load on the engine. First cut with the mower housing in the highest position and then lower the mower housing for the second cut.

10.For better engine performance and an even discharge of the cut grass, always operate the engine with the throttle in FAST position.

11.When you use a bagger, operate the engine with the throttle in FAST position and the shift lever in first or second gear.

12.For better cutting performance and a quality cut, mow with the shift lever in one of the slower speeds.

13.After each use, clean the bottom and top of the mower housing for better performance. Also, a clean mower housing will help pre- vent a fire.

MAINTENANCE

NOTE: Illustrations and pictorials begin on page 2.

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General Recommendations

1.The owner’s responsibility is to maintain this product. This will extend the life of the prod- uct and is also necessary to maintain war- ranty coverage.

2.Check the spark plug, drive brake, lubricate the unit, and clean the air filter once a year.

3.Check the fasteners. Make sure all fasteners are tight.

4.Follow the Maintenance section to keep the unit in good operating condition.

WARNING: Before you make an in- spection, adjustment, or repair to the unit, disconnect the wire to the

spark plug. Remove the wire from the spark plug to prevent the engine from starting by accident.

NOTE: Torque is measured in foot pounds (metric Nm). This measurement describes how tight a nut or bolt must be. The torque is measured with a torque wrench.

Inspect Blade (Figure 7)

WARNING: Before you inspect or remove the blade, disconnect the wire to the spark plug. If the blade

hits an object, stop the engine. Check the unit for damage. The blade has sharp edges. When you hold the blade, use gloves or cloth material to protect your hands.

If you keep the blade (1) sharp and inspect the blade for damage, the blade will cut better and be more safe to operate. Frequently check the blade for excessive wear, cracks, or other dam- age. Frequently check the nut (3) that holds the blade (1). Keep the nut (3) tight. If the blade hits an object, stop the engine. Disconnect the wire to the spark plug. See if the blade is bent or damaged. Check the blade adapter (5) for dam- age. Before you operate the unit, replace dam- aged parts with original equipment parts. See the authorized service centre in your area. Every three years, have an authorized service person inspect the blade or replace the old blade with an original equipment part.

How To Remove And Install The Blade (Figure 7)

1.Remove the mower housing. See the instruc- tions on “How To Remove The Mower Hous- ing”.

2.Use a piece of wood to keep the blade from rotating.

3.Remove the nut (3) that holds the blade (1).

4.Check the blade (1) and the blade adapter

(5)according to the instructions for “Inspect Blade”. Replace a badly worn or damaged blade with an original equipment blade. See an authorized service centre in your area.

5.Clean the top and bottom of the mower hous- ing. Remove all the grass and debris.

6.Mount the blade (1) and blade adapter (5) on the mandrel (6).

7.Mount the blade (1) so that the hi-lift edges

(7)are up. If the blade is upside down, the blade will not cut correctly and can cause an accident.

8.Fasten the blade (1) with the original washers and nut (3). Make sure the outside rim of the Belleville washer (2) is against the blade (1).

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Murray 405001x78B manual Maintenance, Before Starting The Engine