Lifan 620. Instruction - page 38

(3) Cover the accessory and block the hole when the fuel system works to avoid dust and other
dirties entering the fuel system from open pipeline or entries.
(4) Take care to keep all components of fuel system clean.

Note:
(1) Reinstall the 4 M10 fixing bolts used for fuel tank, and tighten them by a tightening torque of
40N·m.
(2) Tighten all the clips and replace them if necessary.
(3) Check and conform all hoses are not circled or damaged during removal and installation.
(4) Open the ignition switch for 2s, and then close it for 10s. Then open it again and check if there
is oil leakage.

Note:
After the high pressure pipe is connected, pull it in negative direction and check if it has been
connected and if there is an about 3mm clearance.

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Section V Engine Cooling System

Warning:
Do not open the cover of radiator or loose the bolt for drainage when the engine runs or the
radiator is too hot, to avoid serious hurt caused by the boiling coolant and steam. Besides, the
engine and cooling system may also be damaged. Stop the engine and wait till it is cool.
Otherwise, extra care should be taken when you open the cover. Place a thick cloth on the cover,
and rotate it counterclockwise slowly and repeat this operation until the pressure is discharged.
When you ensure there is no pressure, press down the radiator cover by the cloth and then open
it.

5. Lower installation bush 6. Electric fan with a fan cowl 7. Hexagon flange nut

8. Steel band type flexible ring clamps 9. Fuel tank assembly with overflow pipe 10. Bolts with flat washer

11. B-type worm-driven hose hoop 12. Radiator water outlet pipe 13. Radiator water inlet pipe

1. Inspection of the valve opening pressure of the radiator cover
Standard: 74-103kPa
Limit: 64kPa
2. Inspection of coolant
(1) Check if the coolant level is between “F” and “L”;

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2) Smear the specified sealant evenly. Sealant and sealing is not need at some place.
3) Install the thermostat when the sealant is still damp (within 15 min).
(3) Connection of radiator water outlet and inlet pipes
1) Insert the water outlet and inlet pipes into the connectors or projected part of the drain pipe
connector.
2) Install according to the alignment mark on the water inlet pipe and clamp.


VI. Radiator

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