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Air Drop HA90C
- 230 V Input 115V Output Toroidal Transformer
- Add a Control Box Mount
- Add Bushings for the Pelvic Lifter
- Add Drop Foot
- Add Stirrups
- Adjusting the clevis on thoracic & lumbar drop cylinders
- Air filter location
- Convert Drop Foot to Slide Ankle
- Hose routing (Breakaway)
- Hose Routing (no breakaway)
- How to align thoracic & lumbar drops
- How to change the compressor plugs & elbow
- How to increase air pressure in the tank (1995-2011)
- How to relocate control box to the thoracic area (2012-2020)
- Location of relay base & socket
- Manifold and the Stand-alone Valves
- Mounting a Mechlok Release
- Relocating the compressors unloader valve
- Removing Cushions
- Repair Main Frame Mount for Thoracic Release Mechlok
- Replace a Stand Alone Valve
- Replace the Lifter on 8 Inch Thoracic or Lumbar Drops
- Replace the Lifter on 8-Inch Thoracic or Lumbar Drops
- Replace Thoracic or Lumbar Drop Pin (Before May 2003)
- Replace Thoracic/Lumbar Push Cylinders
- Replacing 4-gang & stand alone valves
- Replacing a Valve
- Replacing tapeswitches
- Replacing the unloader coil (1995-2011)
- Replacing the Unloader Valve
- Replacing the unloader valve (1995-2011)
- Rerouting compressor coil (1995-2011)
- Scissor Replace
- Securing the check valve to the scissor (1995-2014)
- Thoracic and Lumbar drops assembled
- Thoracic mechlok mount repair on main frame
- Thoracic or Lumbar Drop Pin (May 2003 - Present)
- Troubleshooting compressor running and not shutting off (1995-2011)
- Troubleshooting compressor running and not shutting off (2012-4/2019)
- Troubleshooting the thoracic and lumbar drops
- Troubleshooting thoracic & lumbar drops
- Unloader valve plumbing (2012-4/2019)
- Show all articles (27) Collapse Articles
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How to change the compressor plugs & elbow
AIR COMPRESSOR FITTINGS – TOP VIEW
To better prevent the steel plugs from rusting it is best to replace two of the plugs with brass and move the elbow at the same time. Compare the “Before” and “After” views.

