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12

3352-964 Rev B

Maintenance

Note:

 Determine the left and right sides of the mower by standing in the operating position.

Recommended Maintenance Schedule

Important

: Refer to your engine operator’s manual for additional maintenance procedures.

Maintenance Service

Interval

Maintenance Procedure

Each Use

Check the engine oil level. Refer to Checking the Engine Oil Level on page 6.

Check the stopping time of the blade brake. The blade must stop within

3 seconds of releasing the blade control bar; if it does not, contact an Authorized

Service Dealer. Refer to Checking the Blade Brake Clutch Operation on

page 9.

Check the air cleaner for dirt and/or damage and clean or replace it if necessary.

Refer to Servicing the Air Cleaner on page 13.

Remove grass clippings and dirt from under the housing. Refer to Cleaning the

Mower on page 16.

1 Year (25 Hours)

1

Clean the air cleaner; clean it more frequently in dusty operating conditions.

Refer to Servicing the Air Cleaner on page 13.

Clean the blade brake clutch (BBC) shield. Refer to Cleaning the Blade Brake

Clutch Shield on page 15.

1 Year (50 Hours)

1

Change the engine oil.

Refer to Changing the Engine Oil on page 13.

Replace the blade or have the blade sharpened; replace it or have it sharpened

more frequently if the edge dulls quickly. Refer to Replacing the Blade on

page 13.

Lubricate the wheel gears. Refer to Lubricating the Wheel Gears on page 13.

Lubricate the upper handle. Refer to Lubricating the Upper Handle on page 14.

Check and clean the spark plug. Refer to your engine owner’s manual.

Annual Storage

Empty the fuel tank before repairs as directed or before annual storage. Refer to

Preparing the Mower for Storage on page 16.

1

Whichever comes first

2

Change the engine oil after the first 5 operating hours. Change the engine oil every 25 operating hours when you use the engine under a heavy

load or in high ambient temperatures.

Preparing for Maintenance

1.

Stop the engine and wait for all moving parts to

stop.

2.

Disconnect the

spark plug wire from the

spark plug before

performing any

maintenance procedure.

m-7273

3.

After performing the maintenance procedure(s),

connect the spark plug wire to the spark plug.

Note:

 Before tipping the mower to change the oil or

replace the blade, allow the fuel tank to run dry

through normal usage. If you must tip the mower prior

to running out of fuel, use a hand fuel pump to

remove the fuel. Always tip the mower onto its side

(with the air filter up).

Warning

Tipping the mower may cause the fuel to leak.

Gasoline is flammable, explosive and can cause

personal injury.
Run the engine dry or remove the gasoline with a

hand pump; never siphon.

Содержание Insight 10697

Страница 1: ...r moderate injury if you do not follow the recommended precautions This manual uses two other words to highlight information Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention Warning The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductiv...

Страница 2: ...e engine motor If the machine should start to vibrate abnormally stop the engine motor and check for the cause immediately Vibration is generally a warning of trouble Always wear eye protection when operating machine See manufacturer s instructions for proper operation and installation of accessories Only use accessories approved by the manufacturer Slope Operation Slopes are a major factor relate...

Страница 3: ...s tight to be sure the equipment is in safe working condition Never tamper with safety devices Check their proper operation regularly Keep machine free of grass leaves or other debris build up Clean up oil or fuel spillage and remove any fuel soaked debris Allow machine to cool before storing If you strike a foreign object stop and inspect the machine Repair if necessary before starting Never make...

Страница 4: ...d pull back on the blade control bar Product Overview 9 10 11 3 2 1 4 6 7 8 12 m 8113 5 1 Cutting height lever 2 Oil fill Dipstick not shown 3 Recoil start handle 4 Blade control bar 5 Upper handle 6 Blade control button 7 Upper handle knob 8 Throttle 9 Fuel tank cap 10 Air filter 11 Choke 12 Spark plug 2 1 3 m 7917 1 Grass bag 2 Side discharge chute 3 Mulch plug installed ...

Страница 5: ...l after the first 5 operating hours change it yearly thereafter Refer to Changing the Engine Oil on page 13 Before Operating Danger Gasoline is extremely flammable and explosive A fire or explosion from gasoline can burn you and others S To prevent a static charge from igniting the gasoline place the container and or mower directly on the ground before filling not in a vehicle or on an object S Fi...

Страница 6: ...AE 10W 30 or SAE 30W detergent oil with an API service classification of SH SJ SL or higher 3 Install the dipstick securely Adjusting the Cutting Height Warning Adjusting the cutting height may bring you into contact with the moving blade causing serious injury S Stop the engine and wait for all moving parts to stop S Do not put your fingers under the housing when adjusting the cutting height Adju...

Страница 7: ...dle to the desired position m 7979 3 Tighten the upper handle knob as tight as you can m 7919 Operation Important The engine will not start unless the mulch plug or grass bag is properly in place Starting the Engine 1 Turn the fuel valve lever to the On position m 7210 2 Move the throttle to Choke m 8140 3 Pull the recoil starter m 8114 Note If the mower does not start contact an Authorized Servic...

Страница 8: ...ot turn You must engage the blade to mow 1 Push the blade control button and pull the blade control bar to the handle 2 1 m 8072 2 Hold the blade control bar against the handle m 8116 Disengaging the Blade Release the blade control bar m 8076 Important When you release the blade control bar the blade should stop within 3 seconds If it does not stop properly stop using your mower immediately and co...

Страница 9: ...e The bag should begin to inflate indicating that the blade is engaged and rotating 4 Release the blade control bar Note If the bag does not immediately deflate the blade is still rotating The BBC mechanism may be deteriorating and if ignored could result in an unsafe operating condition Have the mower inspected and serviced by an Authorized Service Dealer 5 Stop the engine and wait for all moving...

Страница 10: ...e guide m 7958a 2 Lift the grass bag handle out from the grooves at the top of the mower and remove the bag from the mower m 7959a 3 Insert the mulch plug and rotate the latch rod until it locks into place at both the top and the bottom A A m 7934 Side Discharging the Clippings Use the side discharge for cutting very tall grass If the bag is on the mower remove it and insert the mulch plug refer t...

Страница 11: ... height setting and walk slower then mow again at a lower setting for the best lawn appearance If the grass is too long the mower may plug and cause the engine to stall Mow only dry grass or leaves Wet grass and leaves tend to clump on the yard and can cause the mower to plug or the engine to stall Warning Wet grass or leaves can cause serious injury if you slip and contact the blade Mow only in d...

Страница 12: ...ce it or have it sharpened more frequently if the edge dulls quickly Refer to Replacing the Blade on page 13 Lubricate the wheel gears Refer to Lubricating the Wheel Gears on page 13 Lubricate the upper handle Refer to Lubricating the Upper Handle on page 14 Check and clean the spark plug Refer to your engine owner s manual Annual Storage Empty the fuel tank before repairs as directed or before an...

Страница 13: ...he engine a few minutes before changing the oil to warm it Warm oil flows better and carries more contaminants Refer to Preparing for Maintenance on page 12 1 Remove the dipstick m 7977 2 Tip the mower onto its side with the air filter up to drain the used oil out through the oil fill tube m 8007 3 Slowly pour oil into the oil fill tube until the oil level is up to the upper limit mark A on the di...

Страница 14: ...rect the spray 2 Push the upper handle fully down and spray the inner plastic surface of the outer handle m 8016 m 8118 Adjusting the Self propel Drive If your mower does not self propel properly adjust the self propel drive cable 1 Loosen the nut on the cable mount A A 2 Pull the upper handle back fully rearward Note If the handle does not move smoothly refer to Lubricating the Upper Handle secti...

Страница 15: ...de 1 Disconnect the spark plug wire from the spark plug Refer to Preparing for Maintenance on page 12 2 Tip the mower onto its side with the air filter up 3 Remove the 2 blade nuts A and the stiffener B B A m 8071 4 Remove the blade 5 Install the new blade 6 Install the stiffener you removed in step 3 7 Install the blade bolts and torque them to 15 to 27 ft lb 20 to 37 N m Cleaning the Blade Brake...

Страница 16: ...f fuel 3 Prime the engine and start it again 4 Allow the engine to run until it stops When you can no longer start the engine it is sufficiently dry 5 Disconnect the wire from the spark plug and connect the wire onto the retaining post 6 Remove the spark plug add 1 oz 30 ml of oil through the spark plug hole and pull the starter rope slowly several times to distribute oil throughout the cylinder t...

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Страница 19: ...19 3352 964 Rev B ...

Страница 20: ...k that your Lawn Boy product contains a defect in materials or workmanship follow this procedure 1 Contact any Lawn Boy Authorized or Master Service Dealer to arrange service at their dealership To locate a dealer convenient to you refer to the Yellow Pages of your telephone directory look under Lawn Mowers or access our website at www Lawn Boy com You may also call our Lawn Boy Customer Care Depa...

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