Yard-Man 263 Manuel D’Utilisation

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Maintaining 
Your Lawn 
Mower
WARNING
Always stop engine, 
disconnect spark plug 
and ground against 
engine before performing 
any type of maintenance 
on your machine.
Do not use a pressure 
washer or garden hose 
to clean your unit. These 
may cause damage to 
electric components, 
spindles, pulleys, bear-
ings, or the engine. The 
use of water will result in 
shortened life and reduce 
serviceability.
Blade Care
WARNING: When removing cutting blade 
for sharpening or replacement, protect your 
hands with a pair of heavy gloves or use a heavy rag 
to hold blade.
1.  Disconnect spark plug wire from spark plug. Turn 
mower on its side making sure that the air filter and 
the carburetor are facing up.
2.  Remove bolt, bell blade support, and blade from the 
engine crankshaft, Figure 5-2.
3.  The blade can be sharpened with a file or on a grind-
ing wheel. Do not attempt to sharpen the blade while 
it is still on the mower. When sharpening blade, follow 
original angle of grind and remove metal from the 
heavy side until it balances evenly. Balance the blade 
on a round shaft screwdriver to check for balance. 
Grind cutting edges equally to keep blade balanced. 
WARNING: An unbalanced blade will cause 
excessive vibration when rotating at high 
speeds. It may cause damage to mower and could 
break causing personal injury.
General 
Recommendations
•  Always observe safety rules when performing  
any maintenance.
•  The warranty on this lawn mower does not cover 
items that have been subjected to operator abuse 
or negligence. To receive full value from warranty, 
operator must maintain the lawn mower as  
instructed here.
•  Changing of engine-governed speed will void  
engine warranty. 
•  All adjustments should be checked at least once 
each season.
•  Periodically check all fasteners and make sure these 
are tight.
WARNING: Always stop engine, disconnect 
spark plug, and ground against engine 
before performing any type of maintenance.
Lubrication
•  Lubricate pivot points on the blade control and drive 
control at least once a season with light oil. These 
controls must operate freely in both directions, 
Figure 5-1.
•  Lubricate the wheels at least once a season with 
light oil (or motor oil). If wheels are removed for any 
reason, lubricate surface of the pivot arm and inner 
surface of the wheel with light oil, Figure 5-1.
•  Lubricate the torsion spring and pivot point on each 
end of the side discharge chute periodically with light 
oil to prevent rust, Figure 5-1.
•  The transmission is pre-lubricated and sealed at the 
factory and does not require lubrication.
•  Follow the accompanying engine manual for engine 
lubrication instructions and schedule.
Deck Care
 
WARNING: Never tip the mower more than 90º 
in any direction and do not leave the mower 
tipped for any length of time. Oil can drain into the 
upper part of the engine causing a starting problem.
1.  Disconnect spark plug wire. Drain gasoline from lawn 
mower, or place a piece of plastic under the gas cap.
2.  Tip mower so that it rests on the housing. Keep the 
side with the air cleaner facing up. Hold mower firmly.
3.  Scrape and clean the underside of the deck with a 
suitable tool. Do not spray with water. 
4.  Put the mower back on its wheels on the ground. If 
you had put plastic under the gas cap earlier, make 
sure to remove it now.
Engine Care
Refer to the engine manual for specific instructions.
•  Maintain oil level as instructed in engine manual.
•  Service air cleaner every 25 hours under normal 
conditions. Clean every few hours under extremely 
dusty conditions. 
•  Clean spark plug and reset the gap once a season. 
Check engine manual for correct plug type and gap 
specifications.
•  Clean engine regularly with a cloth or brush. Keep the 
cooling system (blower housing area) clean to permit 
proper air circulation. Remove all grass, dirt, and 
combustible debris from muffler area.
Figure 5-1: Areas to lubricate on mower.