Ryobi RLM46175YL Instructions Manual page 10

LUBRICATION
All of the bearings in this product are lubricated with
a suf cient amount of high grade lubricant for the life of
the unit under normal operating conditions. Therefore, no
further bearing lubrication is required.
WARNING
Always protect hands by wearing heavy gloves and/or
wrapping the cutting edges of the blade with rags and
other material when performing blade maintenance.
Improper handling of blade could result in serious
personal injury.
REPLACING THE CUTTING BLADE
See figure 9.
Be careful when replacing the mower blade. Ensure that
your ngers do not get caught between the moving blade
and the xed parts of the product.
For best results, the mower blade must be kept sharp.
Replace a bent or damaged blade immediately.
WARNING
Only use replacement blades approved by the
manufacturer. Using a blade that is not approved by
the manufacturer of the product is hazardous and could
result in serious injury, damage to the product, and will
void your warranty.
WARNING
Drain the fuel rst before tilting the mower to replace the
blade.
Stop the engine and disconnect the spark plug wire.
Allow blade to come to a complete stop.
Turn the product on its side (carburetor facing up).
Wedge a block of wood between the blade and mower
deck to prevent the blade from turning.
Installing: See figure 9a.
Removing: See figure 9b.
Using a 9/16-in. wrench or socket (not provided), loosen
the blade bolt by turning the bolt in a counterclockwise
direction as viewed from the bottom of the mower.
Remove the blade bolt, lock washer, flat washer, and
blade.
Place the new blade on the shaft. Make sure it is
installed with the curved ends pointing up toward the
mower deck and not down toward the ground.
Replace the flat washer, lock washer, and blade bolt
on the shaft. Finger tighten the bolt by turning in a
clockwise direction as viewed from the bottom of the
mower.
8
NOTE: Make certain all parts are replaced in the exact
order in which they were removed.
Torque the blade bolt down using a torque wrench (not
provided) to ensure the bolt is properly tightened.
The recommended torque for the blade bolt is 48–55
Nm (35–40 ft.lb.).
NOTE: Do not sharpen the blades, replace with new
item. Blades need to be properly balanced to avoid
damage and personal injury.
CLEANING AIR FILTER
See figure 10.
For proper performance and long life, keep the air filter
clean.
Remove the air filter cover by pushing in on the latch
with your thumb while gently pulling on the cover.
Remove the air filter and clean it in warm soapy water.
Rinse and let dry completely.
Apply a light coat of engine oil to the air filter, then
squeeze it out using an absorbent cloth or paper towel.
Reinstall the air filter into the air filter base.
Replace and secure the air filter cover.
NOTE: The lter should be replaced annually for best
performance.
FUEL CAP
WARNING
A leaking fuel cap is a re hazard and must be replaced
immediately.
The fuel cap contains a non-serviceable
check valve. A clogged fuel cap will cause poor engine
performance. If performance improves when the fuel cap
is loosened, check valve may be faulty or clogged. Replace
fuel cap if required.
CHANGING ENGINE OIL
See figure 11.
Ensure the fuel tank is completely empty before tipping
the unit over otherwise fuel will leak out.
Engine oil should be changed after every 20 hours of
use. Change the oil while the engine oil is still warm,
but not hot. This allows the oil to drain quickly and
completely.
Remove the oil fill cap/dipstick.
Tip mower onto its side and allow oil to drain from the oil
fill hole into an approved container.
Place mower upright and refill with oil following the
instructions in the Adding/Checking Oil section.
NOTE: Used oil should be disposed of at an approved
disposal site. See your local oil retailer for more information.
English
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