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© Columbus JACK Corp. 2010 Axle Jack Model 5007-55(56) Columbus JACK /Regent The Strength of Experience.

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Presentation on theme: "© Columbus JACK Corp. 2010 Axle Jack Model 5007-55(56) Columbus JACK /Regent The Strength of Experience."— Presentation transcript:

1 © Columbus JACK Corp Axle Jack Model (56) Columbus JACK /Regent The Strength of Experience

2 © Columbus JACK Corp (56) Capacity 50 tons Hydraulic Stroke 12 inches Screw Extension 3.5 inches Closed Height 7 inches Extended Height 22.5 inches Operating Pressure –First Stage4020 psi –Second Stage5950 psi –Third Stage9690 psi

3 © Columbus JACK Corp (56) Maximum Towing Speed3 mph

4 © Columbus JACK Corp Air Pump Hand Pump Cylinder Assy

5 © Columbus JACK Corp

6 © Columbus JACK Corp Cylinder Bushing 1 st Stage Ram 2 nd Stage Ram 3 rd Stage Ram Snap Ring O-Ring & Backup Ring

7 © Columbus JACK Corp Inspection Check hydraulic fluid in reservoir. –If low, fill with mineral based fluid compatible with Buna-N seal material. –For operation at temperatures below 32 o F (0 o C), replace 25% of the hydraulic fluid with kerosene. Check for missing parts, damage or leakage on hand pump assembly. –Check pump piston OD for scoring and rust pits. Replace as necessary. –If piston is leaking, fluid replace o-ring and backup ring.

8 © Columbus JACK Corp Inspection –Replace missing parts as required. Check cup adapter condition. –Replace if damaged or missing. –Insure adapter is securely attached to screw extension. Check screw extension. –Replace if damaged. –Insure screw extension stop is in place to prevent its removal. –Insure the screw extension will thread up and down freely.

9 © Columbus JACK Corp Inspection Check top of cylinder assembly for leakage. –If fluid exists, cycle ram full stroke and clean all excess fluid from ram, then lower ram completely. Fully extend ram. If fluid continues to be present, disassembly cylinder and replace all seals. Check casters and floating wheel for damage or excessive tread wear. –Replace if damaged. –Insure all hardware is tightened securely.

10 © Columbus JACK Corp Inspection Check attaching hardware for cylinder assembly to frame. –Insure all hardware is tightened securely. –If applicable, adjust leveling screw to insure cylinder base is level to ground. Check base of cylinder for proper thickness. Verify cylinder snap rings are fully engaged in grooves. –Tap snap ring into groove with a hammer. Replace if snap ring will not stay in groove.

11 © Columbus JACK Corp Inspection Verify rain hat is operational. Check hydraulic lines and fittings for damage and leakage. –Replace if damaged. Check reservoir fill plug and verify vent is open. Drain air filter. Insure air relief valve/regulator is undamaged. –Check pressure setting of regulator.

12 © Columbus JACK Corp Operation – To Raise Locate jack under aircraft lifting point. Unscrew the screw extension as required. Operate pump until rams have raised aircraft to desired height.

13 © Columbus JACK Corp Operation – To Lower Slowly open release valve to lower rams. Lower screw extension completely. Place rain hat over cylinder.

14 © Columbus JACK Corp Evac-U-Tract (-56) Evac-U-Tract provides air assist in the retraction of the rams by creation a suction across the reservoir that pulls the oil from the cylinder. Vacuum PumpControl Valve

15 © Columbus JACK Corp Evac-U-Tract (-56)

16 © Columbus JACK Corp Evac-U-Tract (-56)

17 © Columbus JACK Corp Operation – To Raise Operate jack same as without Evac-U-Trac.

18 © Columbus JACK Corp Operation – To Lower Slowly open jack release valve and allow rams to retract until aircraft tires are completely on the ground. Operate Evac-U-Trac to lower rams completely. Lower screw extension completely. Place rain hat over cylinder.

19 © Columbus JACK Corp Testing Procedure Relief valve should be checked at least annually to insure it is operating properly. Cylinder assembly should be pressure checked at rated pressure after seal changes. Cylinder must be tested with first and second stage fully extended and the third stage partially extended.

20 © Columbus JACK Corp Relief Valve Adjustment Relief valve should be set between rated capacity and 110% rated capacity. Close release valve and pressurize jack against tester using hand pump. Pump handle will go soft when relief valve setting is reached. If adjustment is required: –Open release valve to release pressure in jack –Remove spring pin.

21 © Columbus JACK Corp Relief Valve Adjustment Intake Check Valve Relief Valve Poppet Relief Valve Spring Relief Valve Adjustment Screw Release ValveInlet Oil Screen Pressure Check Valve

22 © Columbus JACK Corp Relief Valve Adjustment –Close release valve and pressurize jack against tester using hand pump. –To increase relief pressure, release pressure and rotate adjusting screw clockwise. –To decrease relief pressure, release pressure and rotate adjusting screw counterclockwise. –Verify relief valve is set in the correct range and re-adjust as required.

23 © Columbus JACK Corp Relief Valve Adjustment –Open release valve and lower ram(s) completely. –Re-install spring pin.

24 © Columbus JACK Corp Questions ?


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