Poulan Pro HDF900 FRONT TINE TILLER - Manuel (Page 11)

11
MAINTENANCE
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.
Fig. 11
Fig. 12
OIL
FILLER
PLUG
OIL
DRAIN
PLUG OIL LEVEL
ENGINE
LUBRICATION
Use only high quality detergent oil rated with API service
classification SG-SL. Select the oil’s SAE viscosity grade
according to your expected temperature.
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 50 hours of operation or at least
once a year if the tiller is not used for 50 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. 11 and 12)
Determine temperature range expected before oil change.
All oil must meet API service classification SG-SL.
• Be sure tiller is on level surface.
• Oil will drain more freely when warm.
• 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 “FILL ENGINE WITH OIL ”
in the Operation section of this manual.
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
SAE VISCOSITY GRADES
-20 0 30 40 80 100
-30 -20 0 20 30 40
F
C
32
-10 10
60
5W-30
SAE 30
FOAM
PRE-CLEANER
AIR CLEANER
CARTRIDGE
BASE
COVER
COVER KNOB
Fig. 13
AIR FILTER (See Fig. 13)
Your engine will not run properly using a dirty air filter.
Clean the foam pre-cleaner after every 25 hours of op er a-
tion or every season. Service paper cartridge every 100
hours of operation or every season, which ev er occurs first.
Service air cleaner more often under dusty conditions.
• Remove cover knob and cover.
TO SERVICE PRE-CLEANER
• Remove foam pre-cleaner from air cleaner cover.
• Wash it in liquid detergent and water.
• Squeeze it dry in a clean cloth.
• If very dirty or damaged, replace pre-cleaner.
• Reinstall pre-cleaner into air cleaner cover.
• Reinstall cover and secure screw.
TO SERVICE CARTRIDGE
• Carefully remove cartridge to prevent debris from
en ter ing carburetor. Clean base carefully to pre vent
debris from entering carburetor.
• Clean cartridge by tap ping gen tly on flat surface. If
very dirty or damaged, replace cartridge.
• Re in stall cartridge, cover with pre-cleaner and se cure
with screw.
IMPORTANT: PETROLEUM SOLVENTS, SUCH AS KER O SENE,
ARE NOT TO BE USED TO CLEAN THE CAR TRIDGE. THEY
MAY CAUSE DETERIORATION OF THE CARTRIDGE. DO NOT
OIL CARTRIDGE. DO NOT USE PRESSURIZED AIR TO CLEAN
OR DRY CARTRIDGE.