General Maintenance; Spark Arrestor; Replacing The Cutting Blade - Ryobi RLM46175Y Original Instruction

MAINTENANCE
WARNING
If the product is not maintained correctly, the life span of
the product may be reduced, and built-in safety features
may not function correctly, thus increasing the potential
for serious injury. Keep the product in good working
condition.
WARNING
Before performing any maintenance, stop the product,
allow the blade to come to a complete stop, and
disconnect the spark plug wire from the spark plug.
Failure to heed this warning could result in serious
personal injury.
WARNING
When servicing, use only original manufacturer's
replacement parts. Use of any other parts may create a
hazard or cause product damage.

GENERAL MAINTENANCE

You may make adjustments and repairs described in this
manual. For other repairs, contact an authorised service
centre.
■ Avoid using solvents when cleaning plastic parts. Most
plastics are susceptible to damage from various types
of commercial solvents and may be damaged by their
use. Use clean cloths to remove dirt, dust, oil, or grease.
■ Periodically check all nuts and bolts for proper tightness
to ensure safe operation of the product.
■ Remove any buildup of grass and leaves on or around
the engine and engine cover. Occasionally wipe the
mower clean with a dry cloth. Do not use water.
■ Frequently check the grass catcher for wear or
deterioration.
WARNING
Do not, at any time, let brake fluids, gasoline, petroleum-
based products, or penetrating oils come in contact
with plastic parts. Chemicals can damage, weaken, or
destroy plastic which may result in serious personal
injury.

SPARK ARRESTOR

■ The product is fitted with a spark arrestor (which is
inside the exhaust).
NOTE: It is recommended that the spark arrestor is only
cleaned at an authorised service centre.
8
LUBRICATION
All of the bearings in the product are lubricated with
a sufficient amount of high grade lubricant for the life of
the unit under normal operating conditions. Therefore, no
further bearing lubrication is required.

REPLACING THE CUTTING BLADE

See figure 13.
WARNING
Always protect hands by wearing heavy-duty gloves and
wrapping the cutting edges of the blade with rags and
other materials when performing blade maintenance.
Improper handling of blade could result in serious
personal injury.
Be careful when replacing the mower blade. Ensure that
your fingers do not get caught between the moving blade
and the fixed 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 first before tilting the mower to replace the
blade.
■ Stop the product. Make sure that all moving parts have
come to a complete stop. Allow the product to cool
down. Disconnect the spark plug wire.
■ Turn the product on its side, carburettor (air filter side)
facing up.
NOTE: Make sure the carburettor is facing up.
■ Wedge a block of wood between the blade disc and
mower deck to prevent the blade disc from turning.
■ Using a socket (not provided), loosen the disc bolt
by turning the bolt in a counterclockwise direction as
viewed from the bottom of the mower.
■ Remove the disc bolt, lock washer, flat washer, and
blade disc.
■ If any of the individual blades are dull, damaged, or
need replacing, they should be replaced using only
original equipment parts. If any single blade needs to
be replaced, then the complete set of four (4) blades
need to be replaced. Failure to replace the blades as a
set may result in an out of balance situation resulting in
damage to the engine.
User Manual