What valves on gauges should be open and closed during evac? - PeachParts Mercedes-Benz Forum

Johnt49 · #4 06-12-2008, 11:49 AM

Quote:

Originally Posted by Graplr

Both open or closed? I assume you meant open.

Now I'm wondering whether I have the hoses hooked up correctly or not.

I have the low hose coming off the bottom left screw in and I have the high hose coming of the bottom right of the screw in. They are both connected to the quick connect fittings shown in the pic. Then both quick connect fittings are connected to the a/c system at their respective ports.

Looking at the gauges manual (which doesn't state much btw) it shows the quick connect fittings connected to the side ports on the gauges? Is that where I should have them? I would need additional connectors to get it hooked up to the car then.

You've got it right. The pic of the quick connects attached to the side of the manifold is how they're stored when not in use.
When you're done charging & testing be sure to relieve all pressure from the gauge set. Leaving pressure in will weaken hoses & can affect gauge calibration.