Cleaning Air Filter; Spark Plug Maintenance - Power Stroke PS21ESLM Manual Del Operador

 Stop the engine and remove the start key. Allow blade to
come to a complete stop.
 Disconnect the spark plug wire.
 Turn the mower on its side.
 Wedge a block of wood between the blade and mower
deck to prevent the blade from turning.
 Loosen the blade bolt by turning it counterclockwise (as
viewed from bottom of mower) using a 9/16 in. wrench
or socket (not provided).
 Remove the blade bolt, flat washer, and blade.
 Place the new blade on the shaft. Ensure blade is properly
seated with shaft going through center blade hole and
the two blade posts inserted into their respective holes
on the blade. Make sure the blade is installed with the
curved ends pointing up toward the mower deck and not
down toward the ground.
 Replace the flat washer and blade bolt. Finger tighten the
bolt.
NOTE: Make certain all parts are replaced in the exact
order in which they were removed.
 Torque the blade bolt down clockwise using a torque
wrench (not provided) to ensure the bolt is properly
tightened. The recommended torque for the blade bolt
is 35-40 ft. lbs.
WARNING:
Ensure blade is properly seated and the blade bolt is
tightened to the torque specifications above. Failure to
properly attach the blade could cause it to come loose
and result in possible serious personal injury.

CLEANING AIR FILTER

See Figure 21.
Clean the air filter as indicated by the maintenance schedule.
To clean the air filter:
 Depress the latch located below the air filter cover. Then,
lift the cover away from the locking tabs and remove it
from the unit.
 Remove the air filter.
 Rinse filter with clean water.
 Gently squeeze filter until excess water is removed.
 Apply a light coat of engine lubricant to the filter, then
squeeze it out.
 Reinstall the air filter.
NOTE: Make sure the filter is seated properly inside the
cover. Installing the filter incorrectly will allow dirt to enter
the engine, causing rapid engine wear.
 Reinstall the air filter cover making sure that the locking
tabs on the unit and the holes in the air filter cover are
aligned.
MAINTENANCE
 To secure, press against the air filter cover until the latch
below the cover snaps in place.
NOTE: For best performance, the air filter should be replaced
once each year.
FUEL CAP, TANK, AND LINES
Check for fuel leaks. A leaking fuel cap, tank, or line is a
fire hazard and must be replaced immediately. If you find
any leaks, correct the problem before using the product.
Failure to do so could result in a fire that could cause
serious personal injury.
The fuel cap contains a non-serviceable filter and a check
valve. A clogged fuel filter will cause poor engine perfor-
mance. If performance improves when the fuel cap is loos-
ened, check valve may be faulty or filter clogged. Replace
fuel cap if required.
CHANGING ENGINE LUBRICANT
See Figure 22.
For best performance, engine lubricant should be changed
after every 25 hours of operation.
 Stop the engine and disconnect the spark plug wire. Allow
the engine to cool completely before proceeding.
 Remove the oil fill cap/dipstick.
 Tip the unit on its side and allow lubricant to drain from
the oil fill hole into an approved container.
NOTE: Drain the lubricant while the engine is still warm
but not hot. Warm lubricant will drain quickly and more
completely.
Do not change engine lubricant while it is hot. Accidental
contact with hot engine lubricant could result in serious
burns.
 Return the unit to an upright position and refill with lubri-
cant following the instructions in the Adding/Checking
Engine Lubricant section previously in this manual.
NOTE: Used lubricant should be disposed of at an approved
disposal site. See your local retailer for more information.

SPARK PLUG MAINTENANCE

See Figure 23.
The spark plug must be properly gapped and free of deposits
in order to ensure proper engine operation. To check:
 Remove the spark plug cap.
 Clean any dirt from around base of spark plug.
 Remove spark plug using wrench (not included).
Page 13 — English
WARNING:
WARNING: