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Thread: vacum setup

  1. #27
    Join Date
    Jul 2006
    Location
    NW burbs of Detroit
    Posts
    6,058
    I'd thought of thought too, but when I bought one from HD, the pipe threads just didn't seem right..Chink made of course.

    Just didn't want to take a chance on cross threading the pumpm intake.

    Some take NPT and others take MPT. So you have to be care ful on what you buy.

    I got my one of my tees from Fastenal and it cost 2.99.

    I talked to a local vac pump servicer and got my sizes straight before I took the plunge. You cross thread the the in take you are in for some expensive OEM parts

  2. #28
    Join Date
    Jul 2000
    Location
    NW IL.
    Posts
    3,935

    Good Job on that kit

    And from the replies you may find that there are things that you may want to add and others that you'll remove.

    Way to XL.
    Aircraft Mechanical Accessories Technician. The Air Force changed the job title to Air Craft Environmental Systems Technician. But I've decided I'll always be a Mech Acc.

  3. #29
    Join Date
    Jul 2000
    Location
    NW IL.
    Posts
    3,935
    You very may well consider adding:

    Nylog

    Small bottle of denatured alcohol to clean sensor
    Aircraft Mechanical Accessories Technician. The Air Force changed the job title to Air Craft Environmental Systems Technician. But I've decided I'll always be a Mech Acc.

  4. #30
    Join Date
    Apr 2012
    Location
    new york
    Posts
    134
    Ya i order the nylog and keep the alcohol in the truck i clean the sensor every couple of uses

  5. #31
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,869
    Quote Originally Posted by hvaclover View Post
    I'd thought of thought too, but when I bought one from HD, the pipe threads just didn't seem right..Chink made of course.

    Just didn't want to take a chance on cross threading the pumpm intake.

    Some take NPT and others take MPT. So you have to be care ful on what you buy.

    I got my one of my tees from Fastenal and it cost 2.99.

    I talked to a local vac pump servicer and got my sizes straight before I took the plunge. You cross thread the the in take you are in for some expensive OEM parts
    I ran the fitting in with some sealant on the threads.

  6. #32
    Join Date
    Jul 2006
    Location
    NW burbs of Detroit
    Posts
    6,058
    Quote Originally Posted by MechAcc View Post
    You very may well consider adding:

    Nylog

    Small bottle of denatured alcohol to clean sensor
    good point. I didn't mention i have a bottle of 91% isopropyl
    alcohol ( common rubbing alcohol ) that I use to clean my sensor in my all three of my micron gauges.

    Most instructions indicate 70% alcohol...dont use it. The remaining 30% is water.

    If you dont blow out your micron gauge with dry nitro, compressed air or Bone Dry co2, you rust the sensor with the higher water content on the cheap 70% alcohol.

    FWI for those who aren't in the know: 91% isopropyl is available super cheap at most drug stores.

    To clean your micron gauge use an eye dropper and fill the inlet about 2/3 or 7/8 full.

    Place thumb over inlet opening and shake vigorously and then drain alcohol.

    Repeat three or four times and blow out in the aforementioned manner.

    Or you can allow the gauge to air dry for two hours. If you insist on using 70% Isopropyl then a dry gas purge is mandatory.

    This may be common knowledge to some or most but it is worth mentioning.

  7. #33
    Join Date
    Jul 2006
    Location
    NW burbs of Detroit
    Posts
    6,058
    Quote Originally Posted by jpsmith1cm View Post
    I ran the fitting in with some sealant on the threads.
    In my case I got the tee that had OEM specs. My pump guy said on to use OEM O rings(no sealant) which he sent me gratis.

    Like I said, check your OEM specs first! I have a Robinair 15600 6 CFM. Other mfg are different.


    Got one small prob..my pump oil is migrating in to my 1/2" evac hoses...got a bad check valve.

  8. #34
    Join Date
    Apr 2012
    Location
    new york
    Posts
    134
    It's isopropyl that i use that what fieldpiece said to use to clean it

  9. #35
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,869
    On the topic of moisture content of alcohol....

    After cleaning the micron sensor, wouldn't it be wise to install it on your vacuum pump and run the pump?

    Would seem to me to be a quick and effective way to dry the sensor out.

    Of course, you run the risk of contaminating it with oil right after you cleaned it...


    Hmmm.

    Thoughts?


  10. #36
    Join Date
    Apr 2012
    Location
    new york
    Posts
    134
    From the instructions on fieldpiece gauge after cleaning it let it air dry
    i add the alcohol let it sit and turn it upside down give it a little shake and put it in the sun to dry it out

  11. #37
    Join Date
    Apr 2012
    Location
    new york
    Posts
    134
    Drop isopropyl (rubbing) alcohol into the opening of the SVG2 sensor and pour it out. Leave the sensor opening uncovered long enough to completely evaporate all of the residual alcohol. Do not use an object such as a cotton swab to clean the sensor, you may cause damage to the sensor.

  12. #38
    Join Date
    Apr 2012
    Location
    new york
    Posts
    134
    Question last time i used my pump i had a little bit of oil coming out of the exhaust
    is that the check valve going bad

  13. #39
    Join Date
    Feb 2010
    Location
    In a boiler room
    Posts
    7,186
    Quote Originally Posted by timetable15 View Post
    Question last time i used my pump i had a little bit of oil coming out of the exhaust
    is that the check valve going bad
    Mine does too a little at the beginning of an evacuation when the airflow is highest.

    Is the oil level a bit too high?

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