Murray 20-inch manual Engine Maintenance, How To Adjust, The Height Of Cut, Lubrication

Models: 20-inch

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MAINTENANCE

MAINTENANCE

ENGINE MAINTENANCE

Grass and other debris can keep the mower

Use the following maintenance section to keep

from working correctly. After you mow, clean

the mower housing as follows.

your unit in good operating condition. All the

1. Stop the engine.

maintenance information for the engine is in

2. Disconnect the wire from the spark plug.

the ”Engine Instruction Book”. Before you start

3. Clean the top and the bottom of the mower

the engine, read this book.

WARNING: Before you make an

housing.

 

inspection, adjustment (except

HOW TO ADJUST

carburetor), or repair, discon-

nect the wire from the spark

THE HEIGHT OF CUT

plug.

 

LUBRICATION

WARNING: The blade will rotate

when the engine runs. Before

1. For maximum performance, lubricate the

you change the height of cut, dis-

connect the wire to the spark

wheels and all pivot points with engine oil

plug.

every 25 hours.

 

2. To lubricate the engine, refer to the ”Engine

Models With Axle Bolts

Instruction Book”.

 

NOTE: Do not lubricate the engine stop

To change the height of cut, move the axle bolt

cable. Lubricants will damage the cable

at each wheel. Make sure you assemble each

and prevent the cable from moving freely.

axle bolt in the same hole position so that the

Replace the cable if bent or damaged.

mower will cut level.

HOW TO CLEAN

1. Hold the flange nut with a wrench. Use

another wrench and loosen the axle bolt.

THE MOWER HOUSING

2. Remove the flange nut (Figure 12).

WARNING: The blade will rotate

3. Move the wheel and axle bolt to another

position.

when the engine runs. Before

you clean the mower housing,

4. Assemble the flange nut on the axle bolt.

stop the engine and disconnect

Tighten the axle bolt. Do not turn the

the wire from the spark plug.

flange nut.

Flange Nut

Wheel

Washer

Axle Bolt

Figure 12

F–040406L

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Murray 20-inch Engine Maintenance, How To Adjust, The Height Of Cut, Lubrication, How To Clean, The Mower Housing