HELP RV Stuck, Rear Air bags won't inflate
Hope someone is reading the forum on this Superbowl Sunday. 93 Winnebago Vectra, front gas model with Jet Air Ride. I have not started it in about 2 years. Was bringing it to my house to go over ...
Forum Discussion
Got the new pump installed. Since there is no replacement pump from Jet Co or otherwise that fits the stock bracket, I moved the pump inside under a bed. It worked out perfectly because the storage area under this bed is directly above where the old pump was:
Using the schematics from the original Jetco literature I wired up the 40-amp relay that came with the new pump. Basically it's this:
- The original Jet Co blue wire from the ignition feed gets installed the same way: through the pressure switch. The other side of the pressure switch controls the relay that runs the pump.
- Replaced the bulky old solenoid with a 40-amp relay
- Tiny black wire from the Jet Co harness is spliced into the blue ignition wire - it feeds power to the soleniods
- You can use the original Jet Co constant hot, but it my opinion it was grossly undersized for a 15-amp draw and 35-foot cable run. It had obviously been getting hot. I ran a new 4-gauge cable with a 60-amp circuit breaker. This will protect the electric motor, too, by making sure it has the appropriate voltage.
- Hook the tiny purple wire from the Jet Co harness to the pump's hot wire - this lights up the "COMPRESSOR RUNNING" light on the control box.
- The new pump has 3/8" fittings. Needed about $25 in brass fittings to adapt to the original 1/8" Jet Co lines and to install the new pressure switch.
- New pump and relay can ground at the original spot on the Jet Co bracket
The pump works FAST. And my air horns work now too!
Using the schematics from the original Jetco literature I wired up the 40-amp relay that came with the new pump. Basically it's this:
- The original Jet Co blue wire from the ignition feed gets installed the same way: through the pressure switch. The other side of the pressure switch controls the relay that runs the pump.
- Replaced the bulky old solenoid with a 40-amp relay
- Tiny black wire from the Jet Co harness is spliced into the blue ignition wire - it feeds power to the soleniods
- You can use the original Jet Co constant hot, but it my opinion it was grossly undersized for a 15-amp draw and 35-foot cable run. It had obviously been getting hot. I ran a new 4-gauge cable with a 60-amp circuit breaker. This will protect the electric motor, too, by making sure it has the appropriate voltage.
- Hook the tiny purple wire from the Jet Co harness to the pump's hot wire - this lights up the "COMPRESSOR RUNNING" light on the control box.
- The new pump has 3/8" fittings. Needed about $25 in brass fittings to adapt to the original 1/8" Jet Co lines and to install the new pressure switch.
- New pump and relay can ground at the original spot on the Jet Co bracket
The pump works FAST. And my air horns work now too!
