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LONCIN 2V90FD, Owner'S Manual, Page: 19 / 27

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LONCIN 2V90FD Owner'S Manual Download Page 19

Engine Maintenance

Regulate idle speed

1.

Start the eng

ine outdoor

，

warm up it for a while.

2.

Put the regulation lever to “low” position.

3.

Regulate the idle speed with a special tool

，

make

idle speed within the range:

Standard idle speed

：

1800±200rpm

。

Summary of Contents for 2V90FD

Page 1: ...Owner s Manual 2V90FD ...

Page 2: ...sfer the engine with the manual Our abides by the continuous development strategy therefore our reserves the right of modification of product and revision of the manual without any notice Copy right our company All rights reserve It is prohibited from reproducing transferring distributing and memorizing any content in the manual without obtaining a written approval from our General purpose Engine ...

Page 3: ...m 5 4 Check before operation 6 Routine inspection 6 Check engine oil 6 Check air cleaner 7 5 Start engine 8 6 Stop engine 10 7 Maintenance Maintenance schedule 11 Replace crank case oil 12 Maintain air cleaner 13 Spark plug 14 Regulate idle speed 14 8 Engine storage 15 9 Troubleshoot 16 10 Battery 19 11 Engine parameters 20 12 Wiring diagram 21 ...

Page 4: ...ndition the engine is stopped Prohibit smoking keep flame away from naked flame and spark while filling fuel Do not start engine while the splashed petrol drips remain Hot exhaust When the engine works the muffler is heated to high temperature even the engine stopped after a while Be careful to keep your hand beyond the touch with the muffler Do not store the engine in room till it is cool To prev...

Page 5: ...Part and Component Names 2 Part and component names Serial number T YYMM YYMM is year and month of manufactured ...

Page 6: ...Use of Engine Serial number T YYMM YYMM is year and month of manufactured ...

Page 7: ...en the switch turns to off position the engine stops 2 Choke button The function of the choke button is to open or close the choke valve in the carburetor When pull out the button the choke valve is closed in such case it is prone to start the cold engine When the engine works normally it is required to push the choke button in that is to say the choke valve is in opening position ...

Page 8: ...ing system The engine protecting system is designed to protect engine from damage because of lack of oil in the crank case When the engine oil is lower than the safe level line the engine protecting system will work to stop the engine automatically the engine switch is still in on position If the engine stops automatically but can not start again first of all check the oil level if fault remains d...

Page 9: ... engine oil After stalling place the engine in level position then check oil level 1 Pull out the oil ruler and clean it 2 Plug in the ruler thoroughly and take it out again to check the oil level 3 If the oil level is lower than the low limit remove the filler cap and fill the recommended oil till it goes up to the top limit 4 After filling keep in mind to reinstall the ruler and tighten the cap ...

Page 10: ...n filling fuel the fuel level does not exceed shoulder of fuel filter i e top level It is recommended to fill lead free petrol grade No 90 or higher When use lead free petrol carbonized dirt is less thus it can prolong the service life of exhaust system It is prohibited to use waste fuel contaminated fuel and fuel mixed with engine oil Check air cleaner Remove the air cleaner case to check the ele...

Page 11: ...Check before Operation ...

Page 12: ...Engine 1 When coldstart is performed the choke button must be off position When hotstart is done the choke button must be on position 2 Regulate the position of the regulation lever from low to high Engine Engine for Genset ...

Page 13: ...ch to on position 4 If the engine starts in the condition that the choke button is pulled to off position when the engine warming up push the choke button gently to on position If hot start is done the choke button is kept in on position ...

Page 14: ...op engine In emergency it is an easy way to stop the engine just turn the engine switch to off But as a rule stop engine as follows 1 Turn the regulation lever to low position 2 Stop the engine Engine Engine for Genset ...

Page 15: ...ools and specialized technique 3 Only replace element Carburetor Modification for High Altitude Operation At high altitude the standard carburetor air fuel mixture will be too rich Performance will decrease and fuel consumption will increase A very rich mixture will also foul the spark plug and cause hard starting Operation at an altitude that differs from that at which this engine was certified f...

Page 16: ... and tighten them In view of environmental protection please take a proper way to dispose the waste oil It is recommended to send the waste oil to the local service station or recycle center Never throw waste oil barrel to refuse tip dump the waste oil on ground or in ditches 3 Place the engine in level position refill recommended oil to the top line The filling capacity of the engine Not replace ...

Page 17: ... must be done more frequently than that shown in maintenance schedule In the case of no element or element damaged the dust will be sucked into the engine and result in rapid wear of the engine Double element air cleaner 1 Loosen the clip and remove the air cleaner cover 2 Take out the element Check the elements and replace if necessary 3 Clean air cleaner bracket and cover Prevent dust from sucki...

Page 18: ... has damaged or isolator has broken replace the spark plug The clearance of the spark plug electrode should be 0 70 0 80mm Adjust the side electrode if necessary 4 Screw the spark plug with hand carefully to avoid damaging the thread on the head 5 When the spark plug is in position tighten the spark plug with the special socket wrench and depress the washer If install the used spark plug after dep...

Page 19: ...egulate idle speed 1 Start the engine outdoor warm up it for a while 2 Put the regulation lever to low position 3 Regulate the idle speed with a special tool make idle speed within the range Standard idle speed 1800 200rpm ...

Page 20: ...nder overflow pipe 2 Unscrew the draining screw of the carburetor drain the fuel in the carburetor from the overflow pipe to the container After finishing that tighten the draining screw 3 When using the engine again replace oil 4 Remove two spark plugs 5 Fill 5lm 10lm oil in the head 6 Rotate the engine in several turns to 7 scatter the oil in the head 8 Reinstall the spark plug 9 Rotate the engi...

Page 21: ...emperatures accelerate fuel deterioration Gasoline will oxidize and deteriorate in storage Deteriorated gasoline will cause hard starting and it leaves gum deposits that clog the fuel system As a result If the engine is not used for more than one month the fuel oil shall be drained thoroughly to prevent from deterioration of the fuel in fuel system and carburetor The failures of fuel system or eng...

Page 22: ...ry spark plug Fuel grade not correct Fill specified fuel Fuel system normal Spark normal Spark Plug poor carbonized electrode dirt Clean carbonized dirt Isolator damaged Replace spark plug Electrode burnt out Replace spark plug Improper spark plug clearance Regulate clearance Spark plug normal No spark High tension wire damaged Replace high tension wire Ignition coil damaged Replace high tension c...

Page 23: ...der piston ring worn out replace Leakage between block and head Replace gasket Incorrect valve clearance Regulate Valve untight Grind or replace Phenomena Causes Elimination Fuel system Fuel run out Fill fuel unblock Sudden stall at run Carburetor blocked Check fuel line unblock Oil leaked from carburetor float Repair float Needle valve jammed Repair needle valve Solenoid valve of carburetor damag...

Page 24: ...ing gear 5 Abnormal noise Phenomena Causes Elimination Slap Piston piston ring worn out Replace worn part Connection rod piston pin pin hole worn out Replace worn part Crank worn Replace or repair Piston ring broken Replace piston ring Knocking with metallic sound Exceeded carbonized dirt in combustion chamber Clean carbonized dirt Spark plug electrode clearance too small Regulate electrode cleara...

Page 25: ...t may occur to the persons around therefore keep the smoke and flame and inflammable things away from the battery the battery will release explosion gas keep the fire away from it When charge the battery or use the battery keep ventilating Connect start motor Be careful not to connect the terminals in reverse or short circuit occurs As usual connect the positive electrode before do it for negative...

Page 26: ...ation environmental conditions maintenance and other variables Project Engine Engine for Genset Engine Type 2 cyl 4 stroke forced air cooling OHV Displacement bore X stroke 999ml 90X78 5mm Rated power kW 3600rpm 22 Max torsion N m speed rpm 70 2800 Fuel rate g kW h 350 Idle speed rpm 1800 200 Speed fluctuation ratio 10 Compression ratio 8 5 1 Start mode Powered start Rotation direction CCW face to...

Page 27: ...WIRING DIAGRAM 12 Wiring diagram Powered starting engine with oil protection system ...

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