Craftsman 247.270250 - Manual (Page 16)

5. Completely loosen the two screws that hold the
cover of the air cleaner. Remove the entire air
cleaner assembly from the base. Lift the cover off
the air cleaner, ^e Figure 13. Engine Tune-Up Specifications
6 .
7.
To clean cartridge, gently tap pleated paper side on
a flat surface.
To clean pre-cleaner, separate it from the cartridge
and wash in liquid detergent and water. Air-dry
thoroughly. Re-assemble the dry pre-cleaner on
the cartridge.
A
WARNING: Do not use pressurized air or
solvents to clean carbidge. Pressurized air can
damage cartridge while solvents will dissolve it.
8 .
9.
Install clean (or new) air cleaner assembly in base
so that the lip of the cartridge sits inside the base.
See Figure 13.
Place the cover over the air cleaner assembly and
secure with the two screws loosened in step 5.
Spark Plug
1. Clean area around the spark plug base.
2. Remove and inspect the spark plug.
3. Replace the spark plug if electrodes are pitted,
burned, or the porcelain is cracked. See Figure 14 .
4. Clean the spark plug and reset the gap to 0.020'' at
least once a season or every 100 hours of
operation. See Figure 14. Replace if necessary.
Refer to parts list section for part number.
NOTE: Do not sandblast spark plug. Spark plug should
be cleaned by scraping or wire brushing and washing
with a commercial solvent.
• Armature air gap 0.006 - 0.014 inches
• Spark plug gap 0.020 inches
• Intake 0.004 - 0.006 inch
• Exhaust 0.009-0.011 inch
Lubrication
See Figure 15 for an illustration of the lube points
described below.
• Blade Assembly: Lubricate blade assembly and
deck spindle before reassembling the blade either
after sharpening or replacement.
• Pivot Points; Lubricate all pivot points on the drive
system, parking brake and lift linkage at least once
a season wi№ light oil.
• Steering Shaft: Lubricate steering shaft and gear
spline at least once a season w№ light oil.
• Gear: Lubricate teeth of the external steering gears
with automotive multi-purpose grease every 25
hours of operation or once a season.
• Front Wheels: Lubricate the front wheels wifri
automotive grease once a season.
ubricate
Lubricate .
Lubricate Lubricate
Figure 15: Lubrication Chart
Brake
During normal operation of any vehicle, the brake is
subject to wear and tear. Check the brake every 25
hours of operation by carrying out the following test:
1. Release the parking brake and place the shift lever
in neutral. Depress the brake pedal and try to roll
the vehicle. It should not move. If the vehicle
moves, adjust the brake following instructions on
page 20.
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