SINGLE-STAGE TRIPOD JACK

SINGLE-STAGE TRIPOD JACK

Aircraft Jack Maintenance & Proof Load Testing
Single-Stage Tripod Jack Procedure
90 Day Maintenance Procedure:
  • Check leaks including the following areas of the hydraulic system:
    • – Hydraulic lines (hoses and fittings)
    • – Hand pump (cylinder, fittings and seals)
    • – Reservoir (welds and fittings)
    • – Air operated pump (fittings, air side and oil side seals)
  • Inspect the Jack structure for corrosion, bending, cracking and excessive wear in the following areas:
    • – Ball lock pins
    • – Mechanical extension
    • – Welded joints (tripod legs, cylinder and foot pads)
    • – Ram lock nuts (gouge marks and cracks in threads)
    • – Jack pads
  • Check fluid levels with rams fully retracted to ensure proper level height
  • Visually inspect extended rams for corrosion, foreign matter, excessive wear and leaks around ram seals. Remove any foreign matter.
  • Check air operated pump
  • Check paint condition and touch-ups where necessary
  • Actuate the hand pump and raise the ram to full extension.
  • Apply water repellant that is Buna N compatible to the rams (DoAll, RPM, LPS or equivalent)
  • Open release valve and verify that rams fully retract
  • Lubricate casters (if applicable)
12 Month Proof Load Testing Procedure: complete all of the above including:
  • Check hydraulic fluid for contamination (dirt/water) drain and flush if required
  • Capacity test (110% of jack’s rated capacity)
Contact us to learn more about our on-site maintenance & proof load testing services.

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