Ryobi RLM46173 Original Instructions Manual Download

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English

3. Apply a light coat of engine oil to the air

lter, then

squeeze it out using an absorbent cloth or paper towel.

4. Reinstall the air

lter into the air

lter base.

5. Replace and secure the air

lter cover.

NOTE:

The filter 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

lter and a

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 THE ENGINE OIL

See figure 14.

Ensure the fuel tank is completely empty before tipping the
unit over; otherwise, fuel will leak out.
Engine oil should be changed after every 25 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.
1. Remove the oil

ll cap/dipstick.

2. Tip mower onto its side and allow oil to drain from the oil

ll hole into an approved container.

3. Place the product upright and re

ll 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.

MAINTAINING THE SPARK PLUG

See figure 15.

The spark plug must be properly gapped and free of
deposits in order to ensure proper engine operation. To
check:
1.  Remove the spark plug boot.
2.  Clean any dirt from around base of the spark plug.
3.  Remove the spark plug using a 13/16 in. spark plug

socket (not provided).

4. Inspect the spark plug for damage, and clean with a

wire brush before reinstalling. If the insulator is cracked
or chipped, spark plug should be replaced.

NOTE:

Use the recommended F7RTC spark plug for

replacement.

5. Measure the plug gap. The correct gap is 0.71 mm -

0.79 mm. To widen the gap, if necessary, carefully bend
the ground (top) electrode. To lessen the gap, gently tap
the ground electrode on a hard surface.

6. Seat the spark plug in position; thread in by hand to

prevent cross-threading.

7. Tighten with wrench to compress the washer. If the

spark plug is new, use 1/2 turn to compress the washer

appropriate amount. If reusing an 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.

8. Reinstall the spark plug boot.

MAINTAINING THE DRIVE GEAR

See figure 16.

To ensure smooth operation of the wheels, the wheel
assembly should be cleaned before storage.
1.  Remove the hub cap.
2.  Remove the nut and the wheel and set aside.
3.  Remove the dust cover, e-ring, washer, pins, and the

wheel gear. Clean any dirt from these items and the
end of the drive shaft by wiping with a dry cloth. If
necessary, rubbing alcohol may be used to remove any
stubborn dirt.

WARNING

Do not lubricate any of the wheel components.
Lubrication may cause the wheel components to fail
during use, which could result in product damage and/
or serious personal injury to the operator.

4. Reinstall the wheel gear with the arrows facing the front

of the product. Reinstall pins, washer, e-rings, and dust
cover.

NOTE:

Ensure the left gear and right gear are in their

correct location.

5. Reinstall the wheel and the nut. Tighten the nut to

secure.

6. Reinstall the hub cap.

REPLACING THE WHEELS

See figure 17.

WARNING

Only use replacement wheels approved by the
manufacturer of the product. Using wheels that are
not approved by the manufacturer of the product is
hazardous and could result in serious personal injury.

1. Stop the engine and disconnect the spark plug wire.

Allow blade to come to a complete stop.

2. Remove the hub cap.
3. Remove the nut from the wheel axle, then remove the

wheel.

4. Replace with a new wheel and reinstall the nut to

secure.

STORING THE PRODUCT

When storing the product for 30 days or more:

■

If using a fuel stabilizer, follow the stabilizer
manufacturer’s directions to add stabilizer to petrol in
the fuel tank. Run the engine at least 10 minutes after
adding stabilizer to allow the stabilizer to reach the
carburetor.

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