EVU5 pro question
 

I have been experimenting with different pressures on my EVU. Trying to find the best operating pressure. my nose wheel in particular seems a bit sluggish on retraction, that is until I get up around 100 psi. at 110 they're starting to pick up a little better. I know not to exceed 120 psi but im anxious to give that pressure a try to see what happens.

Are any of you guys running your EVU's that high?

Thanks! Pete

RE: EVU5 pro question
 

Don't do it Pete. If you're having that much of a problem, remove any restrictors you have going to the nose wheel. If you are using the SMC adjustable valve, remove it and put restrictors on the mains only.

The can is the limiting factor of pressure, not so much the valve.

Chad

RE: EVU5 pro question
 

Here's somehing else to be careful of...the gear pressure on my EVU5 was considerably different than my air compressor guage. The pressure on the EV was 30 to 40 psi lower than the pump. Oddly, the pressure readings were about the same in the brake system (that is, the EV pressure and pump pressure were the same).

In any case, make sure the pressure on the EV is accurate. Agree with Chad that you should remove the restrictors and see if it works better, then experiment with restrictor size/location to get the movement you want. If its still sluggish with no restrictors, then there may be a problem with the EV or some unintended restriction in your installation or nose retract unit.

Craig

RE: EVU5 pro question
 

Ok, Ill take a look guys. Thanks!

Pete

RE: EVU5 pro question
 

Pete

what i like to do when setting up the gear is hook each gear individually to a Robart hand pump and slowly pressurize them, you can get a feel for any drag in the retract unit and you know what pressure is required to move the gear.

RE: EVU5 pro question
 

Look for a pinched line, been there....done that...

Oh, and I totally agree on the EVU5 pressure readings being low, mine are too....I run analog gauges in my system as a redundant check.

RE: EVU5 pro question
 

Hey thanks for the extra advice. My compressor actually reads the same as my EVU.

RE: EVU5 pro question
 

Shouldn't take more than about 60psi to get the gear moving, if you require more something in the retract is binding (assuming it is not leaking). I would disassemble and lube up the unit.

RE: EVU5 pro question
 

Good lube makes a lot of Difference on any retract system. I'm like Dave on those gages on any model. That way you know at a glance what your onboard tank has before it goes to your system!!