ReplyWhat are you using to connect your pump to the system?
Regular Guest
right now i have a two stage 5cfm infinicon pump but lately i noticed it is not pumping down like it used to. i expected this as it was a cheap pump at the time. now im looking to invest in a well built pump and i am looking for suggestions. maybe even some advice for a improving my vacuum rig. right now im just pure residential 5ton and down.
cheers
Professional Member*
What are you using to connect your pump to the system?
Perhaps you should have read the instructions before calling.
Professional Member*
I've had a JB eliminator since I started and it has served well.
But - before that, when is the last time you invested in an oil change?
Regular Guest
i have the titan manifold 4 valve set with 5' ball valve hoses and a yj super evac micron gauge. i change my oil after every job and if its a long pump down ill change it half way through.
Professional Member*
I've still got my original JB that I bought in 1979. A second JB came my way for $150 in 1982, from a tech's widow. (still have it) Also have a Ritchie that is heavier than my ex wife. Now using an eliminator every day in my van. Still like my JBs the best. Biggest problem I see are not enough oil changes and guys trying to evacuate with rubber hoses.
One way to outthink people is to make them think you think. They'll think you're not really thinking what you're trying to get them to think you think...........
Professional Member*
Tip: Get rid of the manifold and long hoses. Get Vac Rated Hoses and Connect Directly Pump to System.
Professional Member*
You're likely leaking under vacuum through the manifold and hoses. Get a vacuum hose and connect to pump. Save the manifold for charging.Originally Posted by chuck0norris10
Perhaps you should have read the instructions before calling.
Regular Guest
so would you have spliters at the service valves with ball vales to separate the vacuum system from the charging system.
Professional Member
http://www.appioninc.com/products/vctfeatures.html
Use two.
Professional Member*
Yep. Those are my favorite.
Perhaps you should have read the instructions before calling.
Regular Guest
ill be picking up those monday morning. what do you guys think of the yellow jacket superevac 8cfm pump as another option?
Professional Member
Used one for years. Still sitting in the garage, waiting for my cheap, lazy *** to buy a new coupling for it.
Using a JB eliminator right now. I like the built in fittings on the JB vs the home-built rigup I had to do on the YJ.
Dead tough pumps both of them.
Professional Member*
Agree with the others. Lose the manifold when pulling a vacuum. I am partial to the JB's. They have been bulletproof for us. We have between 15-20 of the 7 and 10 CFM Platinums in service at the moment that get heavily used and all still going strong. I like the metal handle, the built-in fittings and the rugged construction. They can handle the abuse. No plastic on them. I hate plastic crap.
Regular Guest
i am not partial to plastic either, why did the refrigeration trade have to be so "cool" to get into. all these expensive toys
Professional Member*
Not much. Go with the JB, or if you want to spend some $$$ a tez8 Appion.
Professional Member
i have two yellow jacket super evac system 1's. i use a supco vg64 micron gauge. Don't ever use a manifold for vacuum. They leak under vacuum and will not pull low enough.
Regular Guest
in residential will i notice a big difference between a 7 cfm and a 10 cfm ?
Professional Member
not at all
Professional Member
ya what is the deal with manifolds. they can be under pressure and not leak. put them in a vacuum all bets r off
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Professional Member
not sure but i believe it is the valve packing. The seals actually seal from the pressure pushing from the inside out. Vacuum pulling inward probably unseats the seals.
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