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10

viewed from the bottom of the mower.

 

■ Remove the disc bolt, lock washer, flat washer, and 

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) need 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.

 

■ Loosen the lock nuts on the old blades by turning then 

counter clockwise.

 

■ Remove the nuts, washers, blades, wave washers and 

bolts from the disc.

 

■ Reassemble the new blades as shown on the figure 

page. Ensure the new blades raised edges face 

towards the inside of the mower deck once the disk 

is reinstalled to the mower. If the blades are not 

assembled correctly the grass will not get directed to 

the rear of the deck (for being 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 flat washer and disc  properly 

securing the blade to the disc.

 

■ Assemble the disc 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. (See figure 12.)

NOTE:

 Make certain all parts are replaced in the exact 

order in which they were removed. 

 

■ Torque the disc bolt using a torque wrench 

(not provided) to ensure the bolt is properly tightened. 

The recommended torque for the disc bolt is 

 

48–55 Nm (35–40 ft. lb.).

NOTE: 

It is not recommended to perform blade 

sharpening by user.

REPLACING WHEELS

See figure 16.

 

■ Stop the engine and disconnect the spark plug wire. 

Allow the blade to come to a complete stop.

 

■ Remove spat (hub cap).

 

■ Remove the nut from the wheel axle, then remove the 

wheel. 

 

■ Assemble with new wheel and reinstall nut to  secure.

 

■ Assemble spat (hub cap).

CLEANING AIR FILTER

See figure 14.

The mower has a paper air filter, and it cannot be washed.

 

■ Remove the air filter element cover by pushing in on 

the latch with your thumb while gently pulling on the 

cover.

 

■ Remove the paper air filter element for inspection.

 

■ After removing the air filter element, most debris can 

be removed by tapping it gently against a hard surface, 

or brushing the surface lightly.

NOTE: 

A dirty air filter element will restrict air flow and 

may result in damage to the engine. Air filter element 

life is dependant upon the environment in which the 

mower is used, and it should be inspected & cleaned 

regularly and replaced when dirty.
Replacement  air filter elements can be ordered through 

the Bunnings special orders desk: - 17150Z03011000. 

(Ryobi part number for Australia and New Zealand)

 

■ Reinstall the cleaned or new air filter element into the 

air filter base.

 

■ Replace and secure the air filter element cover.

NOTE: 

The filter element should be replaced annually 

for best performance or sooner, if necessary.

 

■ Replacement air filter elements can be purchased 

from Ryobi through your local Bunnings Special 

Orders desk.

FUEL CAP

 

 WARNING

A leaking fuel cap is a fire hazard and must be replaced 

immediately.

The  fuel  cap  contains  a  non-serviceable  filter  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 the fuel cap if required.

CHANGING ENGINE OIL

See figure 15.

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.

NOTE:

 Ensure the fuel tank is completely empty before 

tipping the unit over otherwise fuel will leak out.

 

■ 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.

Summary of Contents for RLM4619SMB

Page 1: ...PETROL LAWN MOWER Original Instructions RLM4619SMB Important It is essential that you read the instructions in this manual before assembling operating and maintaining this machine ...

Page 2: ...a Always be sure of your footing especially on slopes Keep firm footing and balance Do not overreach Overreaching can result in loss of balance Walk never run Mow across the face of slopes never up and down Exercise extreme caution when changing direction on slopes Do not mow near drop offs ditches excessively steep slopes or embankments Poor footing could cause a slip and fall accident Plan your ...

Page 3: ... the blade height Stop the blade when crossing gravel surfaces Do not pull the mower backward unless absolutely necessary If you must back the machine away from a wall or obstruction first look down and behind to avoid tripping or pulling the machine over your feet Stop the blade s if the machine has to be tilted for transportation when crossing surfaces other than grass and when transporting the ...

Page 4: ...nders especially children and pets at least 15m away from the operating area Do not operate on inclines greater than 15o Mow across the face of slopes never up and down Danger Keep hands and feet away Beware of sharp blades remove spark plug lead before maintenance To reduce the risk of injury or damage avoid contact with any hot surface WARNING Hot surface Use unleaded gasoline intended for motor...

Page 5: ... regulatory requirements The following signal words and meanings are intended to explain the levels of risk associated with this product SYMBOL SIGNAL MEANING DANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates...

Page 6: ...n operating the unit wear gloves to keep the hands and wrists warm It is reported that cold weather is a major factor contributing to Raynaud s Syndrome After each period of operation exercise to increase blood circulation Take frequent work breaks Limit the amount of exposure per day If you experience any of the symptoms of this condition immediately discontinue use and see your doctor about thes...

Page 7: ...nstall grass catcher or mulching plug INSTALLING THE MULCHING PLUG FOR MULCHING OPERATION See figure 3 NOTE When using the mulching plug do not install the grass catcher Lift and hold up the rear discharge door Grasp the mulching plug by its handle and insert the right side of the plug into the rear of the deck as shown on the manual figure page Then proceed to slide the left side of the plug into...

Page 8: ...emperature use SAE 10W 30 is recommended NOTE Non detergent or 2 cycle engine oils will damage the engine and should not be used To add engine oil Be sure mower is level and area around oil cap dipstick is clean Remove the cap and seal from oil bottle Unscrew the oil cap dipstick and remove Slowly add oil Fill to the Full line on dipstick Do not overfill NOTE Check the oil level is sufficient by i...

Page 9: ...r embankments you could lose your footing or balance EMPTYING THE GRASS CATCHER See figure 11 Stop the mower and wait for the blade to come to a complete stop the handle proceed with mowing Starting warm engine With warm or hot starts engine has been running in the last 10 minutes the engine may not restart readily Repeating of priming steps is required This due to the decompression valve in the e...

Page 10: ...ing the bolt in a counterclockwise direction as Lift the rear discharge door Grasp grass catcher by its handle and lift to remove from mower Empty grass clippings Lift the rear discharge door and reinstall the grass catcher MAINTENANCE WARNING When servicing use only original manufacturer s replacement parts Use of any other parts may create a hazard or cause product damage WARNING Before performi...

Page 11: ... The mower has a paper air filter and it cannot be washed Remove the air filter element cover by pushing in on the latch with your thumb while gently pulling on the cover Remove the paper air filter element for inspection After removing the air filter element most debris can be removed by tapping it gently against a hard surface or brushing the surface lightly NOTE A dirty air filter element will ...

Page 12: ...to reach the carburettor WARNING Do not store the lawn mower with petrol in the tank inside a building where fumes may reach an open flame or spark If not using fuel stabilizer allow the engine to run until the mower is completely out of petrol Once the engine has stopped allow the blade to come to a complete stop and disconnect the spark plug wire Turn the fuel tap to the closed position Check al...

Page 13: ...epeat test with a new spark plug Engine cutting out after 5 minutes Fuel tap most likely in the CLOSED position therefore only 5 mins of fuel left in the fuel bowl Check Red fuel tap position OPEN Fuel line for operation CLOSED Fuel line closed for when not in use storage Mower hard to push High grass rear of mower housing and blade dragging in heavy grass or cutting height too low Raise cutting h...

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Page 16: ...140626v1 Techtronic Industries Australia Pty Ltd Level 1 660 Doncaster Road Doncaster VIC 3108 Australia Techtronic Industries New Zealand Ltd 18 26 Amelia Earhart Avenue Mangere Auckland 2022 New Zealand ...

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