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Axle Jack Model 2295-10PR

Columbus JACK /Regent “The Strength of Experience”. Axle Jack Model 2295-10PR. Capacity 95 tons Hydraulic Stroke 11 inches Screw Extension 5 inches Closed Height 10 inches Extended Height 26 inches Operating Pressure First Stage 4335 psi

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Axle Jack Model 2295-10PR

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  1. ColumbusJACK/Regent “The Strength of Experience” Axle Jack Model 2295-10PR

  2. Capacity 95 tons Hydraulic Stroke 11 inches Screw Extension 5 inches Closed Height 10 inches Extended Height26 inches Operating Pressure First Stage 4335 psi Second Stage 6795 psi 2295-10PR

  3. Air Pump Accumulator Cylinder Support Caster Cylinder Assembly 2295-10PR

  4. Control Console Hand Pump Towbar 2295-10PR

  5. 2295-10PR

  6. Air Control Valve Release Valve Dual Reading Load Gauge (Optional) 2295-10PR

  7. Air Inlet Air Pressure Relief Valve Release Valve System Relief Valve 2295-10PR Shown Without Optional Load Gauge

  8. Accumulator Relief Valve Accumulator Charge Port Test Port 2295-10PR

  9. Cylinder Bushing O-Ring O-Ring O-Ring 1st Stage Ram 2nd Stage Ram 2295-10PR

  10. Locate jack under aircraft lifting point. Raise towbar to lower cylinder to ground. Raise rain hat and unscrew screw extension as required. Close release valve. Operate pump until rams have raised aircraft to desired height. Operation – To Raise

  11. Slowly open release valve. Opening release valve too quickly will cause restrictor fuse to actuate, resulting in the rams lowering very slowly. To reset the restrictor fuse, close release valve, operate hand pump 1-2 strokes. Open release valve slowly to lower rams. When load is removed from cylinder rams, accumulator will “power retract” rams to their fully collapsed position. Operation – To Lower

  12. Operation – To Lower • Lower screw extension completely. • Place rain hat over cylinder.

  13. To verify/recharge the nitrogen pressure in the accumulator: Open release valve on console and insure rams are fully collapsed. • Open accumulator isolation valve under frame. Special Maintenance Instructions • Attach 0-300 psi test gauge to top of accumulator. • Verify accumulator charge is 225 + 5 psi. Re-charge as necessary with nitrogen. • Close accumulator isolation valve.

  14. Special Maintenance Instructions • To recharge hydraulic fluid pressure in the accumulator: • Open release valve on console. • Attach 0-600 psi test gauge to test port at bottom of accumulator. • Close release valve on console. • Fully extend both cylinder rams. • Open accumulator isolation valve under frame. • Loosen hose fitting at top of cylinder assembly.

  15. Special Maintenance Instructions • Using hand pump, slowly pump hydraulic fluid until all entrapped air is removed. • Tighten hose fitting at top of cylinder assembly. • Loosen gauge fitting at test port at bottom of accumulator. • Using hand pump, slowly pump hydraulic fluid until all entrapped air is removed. • Tighten gauge fitting at test port. • Using hand pump, pressurize system to 425 psi maximum. • Close accumulator isolation valve under frame.

  16. Special Maintenance Instructions • Open release valve on console and verify rams retract fully. • As there may be some residual pressure in the system, slowly remove gauge from test port on bottom of accumulator and install cap. • Cycle rams several times to verify smooth extension and retraction.

  17. Questions ?

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