Poulan Pro PR450N20S Operator'S Manual Download Page 18

18

TO CHANGE ENGINE OIL
(SEE ENGINE MANUAL)

•  Be sure lawn mower is on level surface.
•  Oil will drain more freely when warm.
•  Catch oil in a suitable container.
•  For engines without dipstick, re move 

bottom oil drain plug.

•  For engines with oil fill cap/dipstick, 

remove bottom drain plug or remove 
engine oil cap and turn lawn mower on 
its side.

NOTE

:  Before tipping lawn mower to 

drain oil, empty fuel tank by running en-
gine until fuel tank is empty.
•  After oil has drained completely, re place 

oil drain plug and tighten se cure ly.

•  Refill engine with oil.  Pour slowly.  Do 

not overfill.

•  Fill to top of slot inside of filler hole or 

to “FULL” line on dipstick on models so 
equipped.  Keep oil at proper level.

AIR FILTER

Your engine will not run properly and may 
be damaged by using a dirty air filter. 
Clean the element after every 25 hours 
of operation or every season.  Replace 
the air filter every 100 hours of operation 
or every season, whichever occurs first.  
Service air cleaner more often under dusty 
conditions.  See the maintenance section 
of your engine manual.

MUFFLER

Inspect and replace corroded muffler as it 
could create a fire hazard and/or damage.

IN-LINE FUEL FILTER (KOHLER or B&S 
PRO / ENDURANCE ENGINES ONLY)

The fuel filter should be replaced once 
each season.  If fuel filter becomes 
clogged, ob struct ing fuel flow to car bu re-
 tor, re place ment is re quired.
1.  With engine cool, remove filter and 

plug fuel line sec tions.

2.  Place new fuel filter in position in fuel 

line with arrow pointing towards carbu-
retor.

3.  Be sure there are no fuel line leaks and 

clamps are properly positioned.

4.  Immediately wipe up any spilled gaso-

line.

SPARK PLUG

Replace spark plug at the beginning of 
each mowing season or after every 100 
hours of operation, whichever occurs first.  
Set spark plug gap according to engine 
manual specifications.

CLEANING

IMPORTANT:

  For best performance, keep 

mower housing free of grass build-up and 
trash. Clean the underside of your mower 
after each use.
•  Clean the underside of your lawn mower 

by scraping to remove buildup of grass 
and trash.

•  Clean engine often to keep trash from 

accumulating.  A clogged engine runs 
hotter and shortens engine life. 

•  Keep finished surfaces and wheels free 

of all gasoline, oil, etc.

•  With the exception of the water washout 

port (if equipped), we do not recom-
mend using a garden hose to clean the 
outside of your lawn mower unless the 
elec tri cal system, muffler, air filter and 
carburetor are covered to keep water 
out.  Water in engine can result in short-
ened engine life.

GRASS CATCHER (IF SO EQUIPPED)

Grass catcher may be hosed with water 
but must be dry when used.

 

CAUTION:

  Under nor mal usage, the 

catch er material is subject to de te ri o ra tion 
and wear and should therefore be 
checked to ensure compliance with 
origi nal manufacturer specifications.

Fuel 
Filter

Clamp

Clamp

MAINTENANCE

Summary of Contents for PR450N20S

Page 1: ...DELUXE PUSH ROTARY LAWN MOWER 115 58 77 27 Rev 5 01 19 16 BY Printed in U S A...

Page 2: ...ble local or state laws if any If a spark arrester is used it should be maintained in effective working order by the operator In the state of California the above is re quired by law Section 4442 of t...

Page 3: ...g of trouble Always wear eye protection when oper ating machine Use extra care when approaching blind corners shrubs trees or other objects that may obscure vision When loading or unloading this ma ch...

Page 4: ...rtable container rather than from a gasoline dispenser nozzle Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete Do not use a nozzle l...

Page 5: ...side discharge mower If the opening is at the back of the mower housing it is a rear dis charge mower Only rear discharge lawn mowers have a grass catcher included with the mower Approved grass catch...

Page 6: ...ocks into place in operating position 3 POSITION EZ HANDLES Raise lower handle section to operating position and align hole in handle with one of three height positioning holes Insert handle bolt thro...

Page 7: ...ldingoperator presence control bar to upper handle Your lawn mower handle can be ad justed for your mowing comfort Refer to ADJUST HANDLE in the Service and Adjustments section of this manual NOTE For...

Page 8: ...ok Pivot pins Grass catcher handle Catcher frame hook Rear door Frame handle Frame opening Vinyl bindings FABRIC TOP GRASS CATCHERS TO ASSEMBLE AND ATTACH GRASS CATCHER Put grass catcher frame into gr...

Page 9: ...e from battery charger connector male Connect your battery charger to charge battery after each use IMPORTANT The engine will not recharge your battery Spark plug Boot DECK MOUNTED BATTERY Engine conn...

Page 10: ...R LAWN MOWER ENGINE SPEED CONTROL MODELS WITH REMOTE THROTTLE Engine speed is controlled by the throttle control located on the upper handle Move lever forward to FAST engine speed for starting and be...

Page 11: ...opening of mower CAUTION Do not run your lawn mower without mulcher plate plug in place or approved clipping deflector or grass catcher in place Never attempt to operate the lawn mower with the rear...

Page 12: ...ust be installed into rear discharge opening of mower see above instructions Open mulcher door and install dis charge deflector under door as shown Mower is now ready for discharging operation To conv...

Page 13: ...operate mower with the rear door removed or propped open OPERATOR PRESENCE CONTROL BAR Your lawn mower is equipped with an op erator presence control bar which requires the operator to be positioned b...

Page 14: ...fill is clean Remove engine oil filler plug oil fill cap dipstick on models so equipped Slowly add oil For type and grade of oil to use see ENGINE in the Mainte nance section of this manual Fill to t...

Page 15: ...agging performance the engine speed should be set in the FAST position Under certain conditions such as when mowing very tall grass raise the mower height on the first cut to reduce pushing effort to...

Page 16: ...ART attract dust and dirt that will shorten the life of the self lubricating bearings If you feel they must be lubricated use only a dry powdered graphite type lubricant sparingly Wheel adjuster on ea...

Page 17: ...les in the blade with the raised lugs on the adapter 3 Be sure the trailing edge of blade op posite sharp edge is up toward the engine 4 Install the blade bolt with the lock washer and hardened washer...

Page 18: ...ow to carbure tor replacement is required 1 With engine cool remove filter and plug fuel line sections 2 Place new fuel filter in position in fuel line with arrow pointing towards carbu retor 3 Be sur...

Page 19: ...n handle with desired hole in handle bracket and reassemble bolt and knob and tighten securely Align opposite side of handle with same positioning hole and secure with bolt and knob Handle bracket Low...

Page 20: ...up all rusted or chipped paint surfaces sand lightly before painting HANDLE Your handle may be folded for storage as shown Lower handle SQUEEZE TO FOLD ALL MODELS Squeeze the bottom ends of lower han...

Page 21: ...it with a suitable protec tive cover that does not retain moisture Do not use plastic Plastic cannot breathe which allows condensation to form and will cause your unit to rust IMPORTANT Never cover mo...

Page 22: ...ass 2 Cutting too much grass 2 Raise cutting height 3 Dirty air filter 3 Clean replace air filter 4 Buildup of grass leaves 4 Clean underside of mower and trash under mower housing 5 Too much oil in e...

Page 23: ...or wheel 1 Raise cutting height height is too low 2 Rear of lawn mower 2 Raise rear of lawn mower housing or cutting blade housing one 1 setting dragging in grass higher 3 Grass catcher too full 3 Emp...

Page 24: ......

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