Spark Arrestor - Power Stroke PS21ESLM Manuel D'utilisation

 Inspect spark plug for damage, and clean with a wire
brush before reinstalling. If insulator is cracked or chipped,
spark plug should be replaced. For replacement spark
plug, see Product Specifications earlier in this manual
or the accompanying engine manual, if applicable.
 Measure plug gap. The correct gap is 0.028−0.031 in.
(0.7-0.8 mm). To widen gap, if necessary, carefully bend
the ground (top) electrode. To lessen gap, gently tap
ground electrode on a hard surface.
 Seat spark plug in position; thread in by hand to prevent
cross-threading.
 Tighten with wrench to compress washer. If spark plug
is new, use 1/2 turn to compress washer appropriate
amount. If reusing old spark plug, use 1/8 to 1/4 turn for
proper washer compression.
NOTE: An improperly tightened spark plug will become
very hot and could damage the engine.
CLEANING THE EXHAUST PORT AND
MUFFLER
Depending on the type of fuel used, the type and amount of
lubricant used, and/or your operating conditions, the exhaust
port and muffler may become blocked with carbon deposits.
If you notice a power loss with your gas-powered products,
you may need to remove these deposits to restore perfor-
mance. We highly recommend that only qualified service
technicians perform this service.

SPARK ARRESTOR

See Figure 24.
NOTICE:
This product is equipped with a spark arrestor that has
been evaluated by the USDA Forest Service; however,
product users must comply with Federal, State, and
local fire prevention regulations. Check with appropriate
authorities. Refer to accompanying engine manual for
maintenance and replacement parts.
Inspect the spark arrestor for breaks or holes. Replace if
necessary.
 Remove the screw securing the spark arrestor in place.
Then, remove the spark arrestor.
 Use a brush (not provided) to remove carbon deposits
from the spark arrestor as needed.
 Replace the spark arrestor and reinstall the screw. Tighten
to secure.
MAINTENANCE
STORING THE MOWER
See Figure 25.
WARNING:
While storing, keep at least 3 feet of clearance on all sides
of this product, including overhead. Allow a minimum
of 30 minutes of "cool down" time before storage. Heat
created by muffler and exhaust gases could be hot
enough to ignite combustible objects.
 Clean any grass clippings that have accumulated on the
underside of the mower deck.
NOTE: To clean, follow instructions in Washing the Un-
derside of the Mower Deck earlier in this manual.
 Drain the fuel tank completely by running the mower until
the gas runs out. Stored gas can go stale in 30 days.
 Drain the lubricant and replace with fresh, clean lubricant
as described in Adding/Checking Engine Lubricant in
the Operation section of this manual.
 Make sure the fuel valve is in the CLOSED position.
 Disconnect spark plug wire and remove the spark plug.
Pour about a teaspoon of clean, air-cooled, four-cycle
lubricant through the spark plug hole into the combustion
chamber.
 Leaving the spark plug out, pull the starter grip and rope
two or three times to coat the inside of the cylinder wall.
 Inspect the spark plug and clean or replace, as necessary.
 Reinstall the spark plug, but leave the spark plug wire
disconnected.
 Clean the air filter.
 Extend the starter grip and rope rope to check its condition.
If the rope is frayed, have it replaced immediately by a
qualified service center.
 Remove the start key and store in a secure location out
of the reach of children.
 Wipe the mower clean with a dry cloth.
 Check all nuts, bolts, knobs, screws, fasteners, etc., for
tightness.
 Inspect moving parts for damage, breakage, and wear.
Have repairs made on any damaged or missing parts.
Check blade for damage, uneven, or excessive wear and
replace blade if these conditions exist.
 For short-term storage, connect the charging cable
and allow the battery to charge. For long-term storage,
disconnect the cable and coil it neatly.
 Lower the handle assembly as described earlier in this
manual. Avoid pinching or trapping any cables.
 Store mower indoors in a clean, dry place out of the reach
of children.
Page 14 — English