Troubleshooting Guideline
#1 issue is poor battery connection or low charge, so check that first!
“The jack runs for a few seconds, then stops”
The battery is weak or the battery capacity has diminished.
An auxiliary ground is needed from the tank assembly to the trailer’s frame.
“The jack only runs in one direction”
Check battery voltage.
Check all wire connections & for proper plumbing.
Check for air in the lines, extend system completely, let stand for 30 minutes.
“I push the switch but nothing happens”
Check both positive & negative 12V connections.
Check for full charge of battery.
Check that tank assembly has proper ground.
Check wiring connections.
“The jack is jerky when retracting”
There may be air in the system, see bleeding procedure earlier in the booklet.
Low fluid level (Must be 3/4” below top of reservoir)
Incorrect hose installation.
To purge system, add necessary fluid and extend leg completely and leave for 30 mins.
What Hydraulic Fluid do I use?
Automatic Transmission Fluid (ATF): Dexron II, Dexron III, ATF+4, Mercon, Mercon V
Medium Tank Assembly (Plastic Reservoir)
Plastic Foaming of fluid or overflow in reservoir….
Check fluid level of reservoir with legs retracted (should be ¾”-1” below top).
Cylinders
(Prior to 2008, cylinders only have 5 year warranty)
Cylinders “creep” down when not in use…
Check fluid level, OR Bleed System (air in the system)
Hydraulic Fluid on footpad or on ground around cylinder…
Loose fitting or broken hydraulic line.
Cylinders “creep” down or don’t hold pressure when lifting/holding coach…
Check fluid level
Check for leaks in hydraulic lines/fittings… if lines damaged, have them measure and order
replacements from Quadra
Possibly plumbed backwards… (Bottom port on jack should connect to left port on pump)
Relief Valves have failed on pump motor… replace motor/tank assembly
Hydraulic seal failure, check for oil around bottom of cylinder… replace/return cylinder OR seal kit
