Greencut GLM770X - Checking, Cleaning or Replacing the Air Filter; Spark Plug; Spark Plug Cleaning and Gap Checking

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CHECKING, CLEANING OR REPLACING THE AIR FILTER
ATTENTION: Operating the machine without a functional air lter may cause severe engine
damage and will void any warranty. A dirty or oil saturated air lter will restrict air ow, which can
be mistaken as fuel system problems. Check the condition of the air lter before adjusting engine
idle speed, where applicable. If the air lter is damaged (torn, broken, disintegrating), replace it.
The air lter is used to prevent dirt and other particles from possibly entering the engine and causing internal damage
to it. The air lter requires regular maintenance as per the maintenance schedule.
AIR FILTER INSPECTION AND CLEANING
Inspect the air lter for dirtiness and debris, damage, etc. Clean or replace the lter element as necessary.
To clean air lters:
• For foam lters, wash the lter in warm water and mild detergent, then rinse and allow to dry.
• For paper lters, use compressed air to blow particles from it, if possible. The air should be blown from the engine
side of the lter. Tapping the lter element against a hard surface and brushing the pleats using a soft brush may
also help remove debris from the lter.
• For foam lters, place a few drops of clean engine oil on the lter then squeeze it a few times to spread the oil
through the lter material and remove any excess oil.
• It is recommended to clean the air lter cover and air intake assembly of any dirt, cuttings, etc.
To remove the air lter:
1. Carefully remove the air lter cover by pressing the upper clips.
2. Remove the lter element.
To install the air lter:
1. Insert the air lter element, and ensure it is correctly positioned in relation to the air intake assembly as it will
seat and seal properly in one position only.
2. Re-install the lter cover, ensuring it is tted properly against the engine and secure it with the clips.
SPARK PLUG
ATTENTION: If the spark plug is damaged (cracked insulator, broken or eroded electrodes etc),
replace it. Always use spark plugs of the correct “heat range”.
The spark plug is used to ignite the air/fuel mixture inside the engine. The spark plug has electrodes on one end and
an electrical terminal on the other. The spark plug requires regular maintenance.
SPARK PLUG CLEANING AND GAP CHECKING
The spark plug should be checked and cleaned as per the maintenance schedule.
1. Remove any carbon deposits on the spark plug (A) electrodes (B) with a wire brush.
2. Clean the spark plug threads and the electrical terminal (C) on the top.
To check and adjust the spark plug “gap”:
1. Use “feeler” or “thickness” gauges to measure the existing gap. The gauge must drag a little when being slid
between the electrodes (B) – this means the measurement is fairly accurate.
2. Adjust the gap to within specication (see Specications). If the gap needs to be reduced, gently tap the
electrode as required. If the gap needs to be increased, use pliers to gently pull the electrode as required.
3. Measure the gap again and ensure it is within the specied range before re-installing the spark plug.