Qualcast SPP41 Instruction Manual page 12

Cleaning or replacing the air filter
WARNING!
Never run the engine without the air filter element installed:
1. Loosen the fastener that holds the cover.
2. Open the cover and remove the filter.
3. To loosen debris, gently tap the filter on a hard surface. If the filter is excessively dirty,
replace with a new filter.
4. Install the filter.
5. Install the cover tabs into the slots.
6. Close the cover and secure with the fastener.
Cleaning or replacing the spark plug
1. Once the engine has cooled, pull off the spark plug boot with a twist. Remove the
spark plug using the socket spanner supplied.
2. Clean the plug with a wire brush.
3. Using a feeler gauge, set the gap to 0.51mm.
4. Install the spark plug carefully by hand to avoid cross-threading.
5. After the spark plug is seated, tighten with the spanner to compress the washer.
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0.43-0.51mm
Changing the oil
Tilt the lawn mower towards the oil filler, have a container ready to catch the oil, and
remove the dipstick. Once the oil has been emptied, wipe clean any spillages.
Refill with 500ml SAE 30 oil or equivalent, i.e. SAE 5W/30, SAE 10W/30). When the
dipstick is rested on the filler pipe, the oil level must be between the min. and max. marks
on the dipstick.
See 'Filling with engine oil'. Do not overfill.
Start the engine and allow it to run briefly.
Stop the engine, wait one minute and check the oil level. Top up if necessary.
Replacing the cutting blade
WARNING! USE GLOVES.
Before you remove the grass collection bag, stop the engine and wait until the
blade stops completely.
You will need garden gloves (not provided) and a spanner wrench to remove the
blade.
Always handle the blade with care - sharp edges could cause injury.
Don't hold the blade directly by hand.
Renew your metal blade after 50 hours of mowing or after 2 years, whichever is sooner,
regardless of condition.
Regularly check your blade. If the cut of your grass is poor, the blade might be blunt.
Damaged blades not only result in a bad cut, they cause excessive vibration and
uneconomical running of the engine. If the blade has worn excessively and become pitted
and blunt, it should be replaced or sharpened.
NOTE: The blade carrier is designed to break under heavy blade impact to protect the
machine. If this happens, also replace the blade carrier. This can be purchased from
www.gardenservicecentre.co.uk.
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