Poulan PRRT850X User Manual

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MAINTENANCE
OIL FILLER
PLUG
OIL LEVEL
OIL 
DRAIN
PLUG
FIG. 16
Disconnect spark plug wire before performing any maintenance (except car bu re tor adjustment) to 
prevent accidental start ing of engine.
Prevent fires!  Keep the engine free of grass, leaves, spilled oil, or fuel.  Re move 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. 17
TO CHANGE ENGINE OIL (See Figs. 16 and 17)
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.
•  Use a funnel to prevent oil spill on tiller, and catch oil 
in a suitable con tain er.
•  Remove drain plug. For easier removal of plug use 
 
7/16 12 Pt. socket with extension.)
•  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. 
ENGINE
LUBRICATION
Use only high quality detergent oil rated with API service 
classification SG-SL.  Select the oil’s SAE vis cos i ty 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 
40°F (4°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 once a year if the tiller is not used for 25 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.
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
SAE VISCOSITY GRADES
-20
0
30
40
80
100
-30
-20
4
20
30
40
F
C
-10
10
60
10W-30 / 5W-30
SAE 30
oil_visc_chart5_e(drt)
AIR CLEANER (See Fig. 18)
Service  air cleaner cartridge every twen ty-five hours, more 
often if engine is used in very dusty conditions.
1.  Loosen air cleaner screw.
2.  Remove air cleaner cover.
3.  Carefully remove air cleaner cartridge. Be care ful. Do 
not allow dirt or de bris to fall into carburetor.
4.  Clean by tapping gently on a flat sur face.
NOTE: If very dirty or damaged, replace car tridge.
5.  Clean and re place cover. Tighten screw securely.
CAUTION:  Petroleum sol vents, such 
as kerosene, are not to be used to 
clean car tridge.  They may cause de-
te ri o ra tion of the cartridge.  Do not oil 
car tridge.  Do not use pres sur ized air 
to clean or dry car tridge.
AIR 
CLEANER 
SCREW
COVER
AIR CLEAN ER 
CAR TRIDGE
FIG. 18