Poulan 164739 - Manual (Page 14)

CUSTOMER RESPONSIBILITIES
A
Disconnect spark plug wire before performing any maintenance (except carburetor adjustment) to prevent
accidental starting of engine.
Prevent fires! Keep the engine free of grass, leaves, spilled oil, or fuel. Remove fuel from tank before tipping unit
for maintenance. Clean muffler area of all grass, dirt, and debris.
Do not touch hot muffler or cylinder fins as contact may cause burns.
ENGINE
LUBRICATION
Use only high quality detergent oil rated with API service
classification SF, SG or SH. Select the oil’s SAE viscosity
grade according to your expected temperature.
SAE VISCOSITY GRADES
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“F -20° 0° 30° 32” 40” 60“ 80° 100”
“C -30* 20° -10” 0° 10” 20“ 30° 40”
«
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
FIG. 18
NOTE: Although multi-viscosity oils (5W-30,10W-30, etc.)
improve starting in cold weather, these multi-viscosity oils
will result in increased oil consumption when used above
32°F {0°C). Check your engine oil level more frequently to
avoid possible engine damage from running low on oil.
Change the oil after every 25 hours of operation or at least
on cea year if the tractor is not used for25 hours in one year.
Check the crankcase oil level before starting the engine
and after each five (5) hours of continuous use. Add SAE
30 motor oil or equivalent. Tighten oil filler plug securely
each time you check the oil level.
TO CHANGE ENGINE OIL (See Figs. 18 and 19)
Determine temperature range expected before oil change.
All oil must meet API service classification SF, SG or SH.
•
Be sure tiller is on level surface.
• Oil will drain more freely when warm.
® Use a funnel to prevent oil spill on tiller, and catch oil in
a suitable container.
• Remove drain plug.
• Tip tiller forward to drain oil.
• After oil has drained completely, replace oil drain plug
and tighten securely.
® Remove oil filler plug. Be careful not to allow dirt to
enter the engine.
• Refill engine with oil. See “CHECK ENGINE OIL
LEVEL” in the Operation section of this manual.
AIR CLEANER (See Fig. 20)
Service aircieanercartridge every twenty-five hours, mor
often if engine is used in very dusty conditions.
« Loosen air cleaner screws, one on each side of cove
Remove air cleaner cover.
Carefully remove air cleaner cartridge. Be careful. D
not allow dirt or debris to fail into carburetor.
Clean by tapping gently on a fiat surface.
If very dirty or damaged, replace cartridge.
Clean and replace cover. Tighten screws securely.
A
CAUTION: Petroleum solvents, such
as kerosene, are not to be used to clean
cartridge. They may cause deteriora­
tion of the cartridge. Do not oil car­
tridge. Do not use pressurized air to
clean or dry cartridge.
COOLING SYSTEM (See Fig. 21)
Your engine is air cooled. For proper engine performanci
and long life keep your engine clean.
® Clean air screen trequentiy using a stiff-bristled brush
® Remove blower housing and clean as necessary.
® Keep cylinder fins free of dirt and chaff.
FIG. 21
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