LIFAN Power USA 2V77F Manuale utente
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PREFACE
Thank you for choosing the general gasoline engine produced by our company.
Based on the latest technology domestic and abroad, our Company, has individually developed general gasoline
engine 2V77F with 4-stroke, V-shaped cylinder, forced-air cooling. The engine is characterized by advanced design,
compact structure, reliable performance, convenient maintain, economic use, easy speed governing etc. It is widely
used as ideal power in many fields such as generator, construction, field working, forestry machine, etc. The main
hardware, such as crankcase, crankcase cover, cylinder all use aluminum alloy. Because of the using of automatic
decompression mechanism and centrifugal flyweight speed governor, the starting is very convenient and reliable. Other
type use level sensitive protection system, avoiding the suddenly damage caused by bad lubrication.
The manual gives information about the operation and maintenance of gasoline engine 2V77F and 2V77F-A.
2V77F is started by electricity while 2V77F-A is started by electricity or manual. Please read it carefully before
operating. To extend the service life, users should strictly follow the stipulations stated in the manual to carry out
operating and maintenance. We have maintaining place on local place, it will supply offer you the service.
This manual should be considered a permanent part of the engine and should remain with it if it is resold.
All the materials and diagrams of this manual are in accordance with the newest products at the publishing time.
Due to revision and other change, the information descried in this manual may be a little different from the actual status.
The manual is subject to change without notice.
The copyright of this manual belongs to our Co, any group or individual is forbidden to reprint or copy any it.
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IMPORTANT NOTICES
Please pay special attention to statements preceded by the following words:
WARNING
●A warning is used to alert the user to fact that hazardous operation and maintenance procedures may result in
injury to or death of personnel if not strictly observed.
CAUTION
●A caution is used to alert the user to fact that hazardous operation and maintenance procedures may result in
injury to personnel or destruction of equipment if not strictly observed.
NOTE
●Give helpful information.
This manual should be considered as a permanent part of the unit and should remain with the unit when resold.
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CONTENTS
SAFETY PRECAUTIONS...............................................................................................................................................6
PARTS DESCRIPTION...................................................................................................................................................7
BATTERY CONNECTION(electric-start type)............................................................................................................8
CONTROL CONNECTION OF REMOTE DISTANCE (OPTION)........................................................................10
PRE-OPERATE INSPECTION ....................................................................................................................................12
Ⅰ. Engine oil............................................................................................................................................................12
Ⅱ.Air cleaner............................................................................................................................................................13
Ⅲ. Fuel and fuel tank................................................................................................................................................14
STARTING THE ENGINE............................................................................................................................................15
RUNNING THE ENGINE .............................................................................................................................................17
Ⅰ. Engine oil alarm..................................................................................................................................................17
Ⅱ.Breaker.................................................................................................................................................................18
STOP................................................................................................................................................................................19
EXHAUST CONTROL SYSTEM.................................................................................................................................20
MAINTENANCE............................................................................................................................................................22
Ⅰ. Maintenance schedule.........................................................................................................................................22
Ⅱ. Maintenance method...........................................................................................................................................23
TRANSPORT, STORAGE AND REMOVAL FROM STORAGE............................................................................32
TROUBLESHOOTING .................................................................................................................................................34
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Ⅰ. Start engine difficultly.........................................................................................................................................34
Ⅱ. Low gasoline engine power output .....................................................................................................................36
Ⅲ. Gasoline engine cannot run smoothly.................................................................................................................37
Ⅳ. Stop suddenly when running...............................................................................................................................38
Ⅴ. Gasoline engine is excessively hot......................................................................................................................39
Ⅵ. There exists abnormal noise when engine running .............................................................................................40
SPECIFICATIONS.........................................................................................................................................................41
Ⅰ. Main specification...............................................................................................................................................41
Ⅱ. Torque of important bolts....................................................................................................................................42
Ⅲ. Fitting clearance and wear limit..........................................................................................................................43
ELECTRIC DIAGRAM.................................................................................................................................................44
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SAFETY PRECAUTIONS
WARNING:
Before operating the engine, be sure to read and familiar with the manual carefully, otherwise personal
injury or equipment damage may occur.
Please pay special attention to the following:
1. Running the engine in a well-ventilated place, keep it at least one meter away from building walls or other
equipments, keep away from inflammables such as gasoline, matches and so on to avoid possibility of fire.
2. This engine should not be used underground.
3. This engine should not be used in areas where explosive conditions are present.
4. Keep the engine out of reach of children and pets to avoid accidents.
5. Operator of the engine has been specially trained.
6. Refuel in a well-ventilated area with the engine stopped, and in places refueling or storing gasoline, no smoking and
any flames or sparks.
7. Refuel the fuel tank not too full so as to avoid fuel’s spilling out. If there is spilled fuel around, be sure to clean it
thoroughly before starting.
8. Locate the engine on a level-working platform to avoid fuel’s spilling out.
9. Maker sure the fuel filler cap is tightened securely.
10. The exhaust muffler is very hot during running the engine even after the engine stops. Never touch it, or you may
get burns. Transport or store the engine with it cooling down entirely.
11. This machine should not be used underground or in areas where explosive conditions may be present.
12. It’s recommended that the operator wears the ear protection equipment during operation.
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PARTS DESCRIPTION
Fig. 1
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BATTERY CONNECTION(electric-start type)
In the case that the specifications of the battery are 12V and more than 45A.h, connect its positive lead to the
electromagnetic coil while connect its negative lead to
engine mount strew, base screw or any place capable
of grounding with the engine well.
Make sure the battery leads are connected tightly
and no corrosion. If any, eliminate it.
WARNING:
●The battery may give off explosive gas, keep sparks, flames and cigarettes away. Charge or use it in an
area with good ventilation.
●The battery contains sulfuric acid (electrolyte). Contact with skin or eyes may cause severe burns. Wear
protective clothing and a face shield. If electrolyte gets in your skin, flush with water; if gets in your eyes, flush
with water for at least 15 minutes and call a physician at once.
●Electrolyte is poisonous. If swallowed, drink large quantities of water or milk, and follow with milk of
magnesia or vegetable oil and call a physician.
●Keep out of reach of children.
Fig. 2
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CAUTION:
●Do not add tap water to the battery instead of distilled water, or the battery life will be shortened.
●Do not add distilled water over electrolyte upper level mark, or electrolyte will spill out to corrupt the
engine parts. If so, be sure to wash them away with water.
●Make sure not to connect the battery leads in reverse order, or short-circuit or breaker’s cutting may
occur.
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CONTROL CONNECTION OF REMOTE DISTANCE (OPTION)
Throttle and choke levers are designed with holes for optional cable accessories.
1. The diagram shows the installation method of single strand cable and woven cable.
a) Remote-controlled choke valve and Remote-controlled throttle valve.
Fig.3
Indice
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