Mecafer MF3300, Manual

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2) ENGINE OIL REPLACEMENT (PIC. 15 - PIC. 6)
1. Place the machine on a level surface and warm up the engine
for several minutes. Then stop the engine.
2. Remove the oil filler cap
3. Place an oil pan under the engine. Remove the oil drain plug
so that the oil can be completely drained.
4. Check the oil drain plug, gasket, oil filler cap and O-ring. If
damaged replace.
5. Reinstall the oil drain plug.
6. Add engine oil to the upper level.
Recommended engine oil: API Service «SE» or «SF», if not
available, «SD».
CAUTION: Be sure no foreign material enters the crankcase.
3) AIR FILTER (PIC. 16)
Maintaining an air cleaner in proper condition is very important.
Dirt induced through improperly installed, improperly serviced, or
inadequate elements damages and wears out engines. Always
keep the air filter clean.
1. Take out the air filter, clean it well in kerosene and dry it.
2. After wetting the air filter with clean engine oil, squeeze it tight
by hand.
3. Lastly, put the air filter in the case and install it securely.
CAUTION: The engine should never run without the element;
excessive piston and/or cylinder wear may result.
4) CLEANING AND ADJUSTING SPARK PLUG (PIC.17)
Standard electrode color: Tan Color
Spark Plug Gap: 0.7-0.8 mm (0.028-0.031 in)
5) FUEL COCK (PIC. 18)
1. Stop the engine.
2. Turn the fuel cock lever to «OFF».
3. Clean with solvent.
3. Wipe off.
4. Check the gasket. Replace it if damaged.
WARNING! BE sure the fuel cock cup is tightened securely.
6) FUEL TANK FILTER (PIC. 19)
1) Clean with solvent.
2) Wipe off.
3) Re-install the fuel tank filter.
7) MUFFLER SCREEN (PIC.20)
WARNING !
• The engine and muffler will be very hot after the engine has
been run.
• Avoid touching the engine and muffler while they are still hot with
any part of your body or clothing during inspection or repair.
1. Remove the muffler protector and muffler screen.
2. Clean the carbon deposits out of the muffler screen using a
wire brush.
3. Check the muffler screen. Replace it if damaged.
4. Install the muffler screen and muffler protector.
(1) Muffler protector
(2) Muffler screen
Remember that spent oils, battery fluids and all the filters
of the machine MUST BE DISPOSED OF according to laws
on protection of the environment and current legislation, as
these are polluting products.
ITEM REMARKS
Pre -
operation
check (daily)
Initial
1 month
or 20 Hr
Every
3 months
or 50Hr
Every
6 months
or 100Hr
Every
12 months
or 300Hr
Air Filter
Clean.
Replace if necessary.
•
Fuel Filter
Clean fuel cock filter. Replace if
necessary.
•
Valve Clearance
Check and adjust when engine
is cold.
•
Fuel Line
Check fuel hose for splits or
damage.
Replace if necessary.
•
Exhaust System
Check for leakage. Retighten or
replace gasket if necessary.
•
Check muffler screen.
Clean / replace if necessary. •
Carburetor Check choke operation.
•
Cooling system Check fan damage.
•
Starting
system
Check recoil starter operation.
•
Decarbonization More frequently if necessary.
•
Fittings /
Fasteners
Check all fittings and fasteners;
correct if necessary. •
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6 - TROUBLE SHOOTING
ENGINE TROUBLE SHOOTING
CONDITION PROBABLE CAUSE
CORRECTIVE
ACTION
Loose spark plug
Tighten plug
properly
Insufficient
compression
Loose cylinder
head bolt
Tighten bolt
properly
Damaged gasket Replace gasket
Fuel
systems
problems
Insufficient
pulling speed
for starting rope
Pull rope
sharply
Engine
won’t start
No fuel
supplied to
combustion
chamber
Foreign matter
in fuel tank
Clean tank
Clogged
fuel line
Clean fuel line
Low engine
output
No fuel in tank Supply fuel
Fuel shutoff
not open
Open valve
Engine run
erratically
Electric
systems
problems
Spark plug dirty
with carbon
or wet with fuel
Remove carbon
or wipe up
spark plug
Sufficient
compression
Improper
spark
Damaged
spark plug
Replace
spark plug
Combustion
chamber
supplied
with fuel
Faulty
magneto
Improper
adjustment of
carburetor
Consult dealer
Improper
spark
Insufficient
pulling speed
for starting rope
Pull rope
sharply
Improper
grade
of fuel used
Check fuel
Overloading
Check
the working
condition
Overheating