Ryobi M48 Pro Manuel D’Utilisation

English

 – 17

It is important to have a sharp and correctly balanced cutter. 
Loosen the bolt holding the cutter and leave the cutter at a 
service workshop at least once a year for grinding and 
balancing. An appropriate time to do this is after the mowing 
season has finished.

If the cutter or cutter bracket need to be changed you must 
replace the cutter bolt, washer and cup spring at the same 
time.

The bolt should be tightened with a torque of 45-60 Nm when 
you fit the cutter again. See instructions under the heading 
Assembly.

If the cutter hits foreign objects such as stones, roots or the 
like the cutter will slip against the cutter bracket. This may 
mean that the contact surface of the cutter bracket appears 
slightly worn, which is completely normal. This is a safety 
device, which reduces the risk of the engine shaft becoming 
bent.

The engine oil should be changed each year and every 25 
working hours.

When changing the oil proceed as follows::

•

Disconnect the HT lead from the spark plug.

•

Empty the fuel tank

•

Close the fuel tap.

•

Unscrew the oil filler cap.

•

Drain the oil by tipping the engine so that the oil runs out 
through the filler pipe.

•

Ask where you can dispose of surplus engine oil at your 
local petrol station.

•

Fill with new engine oil of a good quality. See the Technical 
data section.

•

Check the oil level with the dipstick on the oil filler cap. The 
oil filler cap must be completely screwed down to give a 
correct picture of the oil level. 

If the oil level is low, fill using engine oil up to the upper 
level on the dipstick.

•

Screw on the oil filler cap.

The mechanical parts of the cutting height system should be 
lubricated regularly (once a week). Lubricate the cutting 
height system with a few drops of oil.