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A320B737 universal jack Instruction Manual3-5

A320B737 universal jack Instruction Manual3-5
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A320B737 universal jack Instruction Manual3-5 - 1

QYF-JW Type QYF-JT Type Instruction Manual QYF-JY Type QYF-JW Type、QYF-JT Type、QYF-JY Type structure diagram of Jack 1. Adjusting screw 2. Piston 3. Cylinder 4. Oil cylinder 5. Working ladder 6. oil tank 7. Jack main body 8. Drawbar assembly 9. Caster fixed plate 10. Caster 11. Oil pipe 12. oil tank cover 13. Oil drain Valve, 14, horizontal ball 15. valve body 16. low-pressure pump17 lift handle 18. high-pressure pump 19. pneumatic pump 20. pressure ro

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A320B737 universal jack Instruction Manual3-5 - 2

QYF-JW Type QYF-JT Type QYF-JY Type Hydraulic principle diagram Hydraulic pressure gauge pneumatic pump The handle of the oil discharge valve is tightened clockwise. At this time, the manual pump is operated or the air source is used through the pneumatic pump to make the pressure oil enter the bottom of the cylinder through the valve body, so that the cylinder is quickly lifted and the heavy weight is lifted. The oil in the cylinder wall is forced to open the overflow through the constant pressure reducing valve with the relief valve 100 The flow valve returns the oil to the tank. Ⅴ. Check...

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A320B737 universal jack Instruction Manual3-5 - 3

QYF-JW Type QYF-JT Type Instruction Manual QYF-JY Type Ⅵ. Operation 1. When jacking up the aircraft, push the jack under the aircraft, tighten the oil discharge valve handle in a clockwise direction, screw out the adjusting screw, so that the convex (concave) surface of the adjusting screw and the concave (convex) on the aircraft face, at this time can jack up, otherwise can`t jack up.2. Connect the air source joint with the air source interface on the jack quickly, and then pull the pneumatic valve handle down. When the pneumatic pump makes a thumping sound, the piston in the oil cylinder...

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