Automotive Air Conditioning Information Forum (Archives)
What is needed to vacuum system prior to refilling
rjdevita on 
Wed September 21, 2005 12:08 PM 
I have a GAST DOA-V110-AB vacuum pump. Can I use it ? If so, how do I connect it, and what prevents contaminants from entering the pump ?
clueless on Wed September 21, 2005 2:20 PM
From the manufactures brocure in pdf.
Oilless Diaphragm Vacuum Pumps and Compressors (built before 6/02)
OPERATION & MAINTENANCE MANUAL
Product Use Criteria:
⢠Pump only clean, dry air.
⢠Operate at 40úF - 104úF (4.4úC - 40úC).
⢠Protect unit from dirt & moisture.
⢠Do not pump flammable or explosive gases or
use in an atmosphere that contains such gases.
⢠Corrosive gases and particulate material will damage unit. Water vapor, oil-based contaminants or other liquids must be filtered out.
⢠Protect all surrounding items from exhaust air. This
exhaust air can become very hot.
⢠Consult your Gast Distributor/Representative
before using at high altitudes.
Sounds like it is not for this kind of work. It will do the job but it will not have a long life.
For a fitting see if tim can get you a ROB-15495 adapter. There are others would need to know what thread is on the pump intake fitting.
Edited: Wed September 21, 2005 at 2:21 PM by clueless
rjdevita on Thu September 22, 2005 8:14 AM
thanks for the info ! I should have thought to check with GAST.
mk378 on Fri September 06, 2013 5:56 PM
That pump will not develop sufficent vacuum. You want to get as much air out as practical, which means an oiled rotary pump.
wptski on Fri September 06, 2013 6:54 PM
What's with the date on that post, 8/22/2005???? Why did it go to the top????
TRB on Fri September 06, 2013 6:58 PM 
Because MK378 posted to it after all these years. 
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wptski on Fri September 06, 2013 9:54 PM
Nope! That thread/post of 8/22/2005 was at the top of the list earlier. I wondered how/why it was there and then mk378 replied to it. Go figure......
TRB on Fri September 06, 2013 9:59 PM
Just looked at the moderator logs. I Spam post was deleted.
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mk378 on Fri September 06, 2013 10:10 PM
Something about your forum software. Sometimes.Zombies.Will.Rise.
TRB on Fri September 06, 2013 10:39 PM
Mod deleted a spam post., which is why the thread looked like it was updated.
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wptski on Sat September 07, 2013 9:24 AM
What happened now(9/7/13 9:23am EST), top of the forum, every section's last post by is blank except this one?
Edited: Sat September 07, 2013 at 9:24 AM by wptski
TRB on Sat September 07, 2013 9:30 AM
I reset things last night. As soon as someone posts to a thread the name will show up. Notice mine next to Nick's post now.
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