Spark Arrestor; Replacing The Cutting Blade - Ryobi RLM4617ME Original Instructions Manual

plastics are susceptible to damage from various types
of commercial solvents. Use clean cloths to remove
dirt, dust, oil, and grease.
■ Replacement blades, bolts and washer can be ordered
through the Bunnings special orders desk.
■ 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
product clean with a dry cloth. Do not use water.
■ Frequently check the grass catcher for wear or
deterioration.

SPARK ARRESTOR

■ The product is fitted with a spark arrestor which is
inside the exhaust. Please note that it is suggested
that the spark arrestor be cleaned only by a recognised
service agent.
LUBRICATION
All of the bearings (excluding the engine bearings) in this
product are lubricated with a suffi cient amount of high
grade lubricant to optimise the lifespan of the product
under normal operating conditions. Therefore, no further
bearing lubrication is required.
CLEANING THE UNDERSIDE OF THE MOWER DECK
1. Raise the product to full height.
2. Connect a female water hose connector (not supplied)
to the male hose connector on the mower deck.
3. Turn on the water supply.
4. Start the product and run at full throttle.
5. Run the engine in place for approximately 30 seconds.
6. Shut off the engine.
7. Turn off the water supply.
8. Inspect the underside of the mower deck for
cleanliness, and repeat the cleaning procedure if
desired.
9. After cleaning the deck, restart the product. Keep
the engine and blade running for a minimum of two
minutes, allowing underside of the cutting deck to
thoroughly dry.

REPLACING THE CUTTING BLADE

See fi gure 11.
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 the blade could result in serious
personal injury.
For best results, the mower blades must be kept sharp.
Replace bent or damaged blades immediately.
Replacement blades, bolts and washer can be ordered
through the Bunnings special orders desk.
Only use replacement blades approved by the
manufacturer of the product. Using a blade not
approved by the manufacturer is hazardous and could
result in serious injury, damage the product, and void
your warranty.
Drain the fuel fi rst before tilting the product to replace
the blade.
1. Stop the engine and disconnect the spark plug lead.
Allow the blade to come to a complete stop.
2. Turn the product on its side with the carburettor (air
fi lter side) facing up.
Make sure that the carburettor is facing up.
3. Wedge a block of wood between the disc and mower
deck to prevent the disc from turning.
4. Using a socket (not provided), loosen the disc bolt
by turning the bolt in a counterclockwise direction as
viewed from the bottom of the product.
5. Remove the disc bolt, lock washer, fl at washer, and
disc.
6. 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 two (2) needs to
be replaced as a set. Failure to replace the blades as
a set may result in an out of balance situation resulting
in damage to the engine.
7. Loosen the lock nuts on the old blades by turning them
counter clockwise.
8. Remove the nuts, washers, blades, wave washers and
bolts from the disc.
9. Reassemble the new blades as shown in Fig. 11.
Ensure that the raised edges of the new blades face
towards the inside of the mower deck once the disk
is reinstalled to the product. If the blades are not
assembled correctly, the grass will not get directed
to the rear of the deck to be caught in the catcher.
Ensure the wave washer is positioned between the
blade and the disc. Ensure the lock nuts are tightened
(clockwise) over the fl at washer and disc, properly
securing the blade to the disc.
10. Assemble the disc fl at 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
product. (See fi gure 11.)
NOTE: Make sure all parts are replaced in the exact
order in which they were removed.
9
WARNING
WARNING
WARNING