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)
Read our Aircraft Jack Proof Load Testing GuideContact the team at e2b calibration for a quote HERE or via email at [email protected]