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AIR FILTER CLEANING
NOTICE: Do not operate the engine without an air cleaner
element as this will cause damage to the inner parts of
the engine. In unusually dusty conditions regular cleaning
or replacing is required.
The foam filter element of the dirty air filter will restrict the air
flow to the fuel system and reduce the engine performance.
If the generator is used in a dusty area, the maintenance
frequency of the air filter’s foam filter element is higher than
that in the maintenance requirements.
1. Wash the filter element in warm soapy water and let it dry
naturally, or clean and dry it in a non – flammable solvent.
2. Dip the filter element into clean oil and squeeze out excess
oil. If there is too much oil left in the filter element, start
the engine and the engine will smoke.
3. Use a damp cloth to remove dirt from the inside of the air
filter’s cover. Take care to prevent dust from entering the
air ducts which leads to the fuel system.
Spark Arrester
The spark arrester must be cleaned every 100 hours to
maintain engine performance. Ensure exhaust outlet and
engine is cold before cleaning and maintenance.
To remove and clean the spark arrester.
1. Loosen two M5x12 pan head bolts and remove mounting
cover, muffler mesh cover and spark collector.
2. Clean the muffler’s mesh cover and the cumulative carbon
on the spark collector with a steel wire brush.
3. Refit and tighten the spark arrester.
NOTICE: Clean with steel wire brush gently to avoid
damage or scratch to muffler mesh and spark arrester.
The spark arrester must not be broken or cracked. If it is
damaged, it must be replaced.
Spark Plug
NOTICE: Incorrect spark plug can cause damage to the
engine.
To replace or clean the spark plug use the spark plug spanner
kit supplied. Allow engine to cool before attempting to
remove the spark plug.
1. Rotate the lock 90° counterclockwise, and open left
maintenance door.
2. Loosen bolt of spark plug’s maintenance cover and remove.
3. Remove the spark plug cap, remove dirt and dust from
around the spark plug.
4. Use the spark plug spanner and rotate counter-clockwise
and remove the spark plug.
5. Check the spark plugs. Replace the spark plug,
if the electrode is worn or burnt, or if the
insulator is cracked or broken. Standard spark
plug: NGK BPR7ES, clearance of spark plug:
0.6-0.8mm.
6. After ensuring that the spark plug is in good
condition, fix the spark plug gently to the
head of the cylinder by hand to prevent
thread damage caused by force.
7. After the spark plug is fixed, tighten it with the
spark plug spanner. If the used spark plug is to
be reinstalled, tighten 1/8-1/4 circle manually
after fixing the spark plug and before
tightening it to the specified position. If the newly installed
spark plug is to be reinstalled, tighten 1/2 circle manually
after fixing the spark plug and before tightening it to the
specified position. Torque: 13.3 LBS. Ft (18 N.M, 1.8kg.m)
8. Install the spark plug cap.
9. Install spark plug maintenance cover and tighten
maintenance cover’s bolts.
10. Close the left maintenance door, and rotate the lock 90°
clockwise.
NOTE
: Spark Plug Type: NGK BPR7ES
NOTE
: If the spark plug is installed without torque wrench, a
better estimation method is to tighten 1/4-1/2 circle
manually, but the spark plug should be tightened to the
specified torque.
