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  1. #1
    Join Date
    Feb 2009
    Posts
    4

    Cordless Grease Gun

    We do alot of work on cooling towers and mechcanical systems and one of our issues is greasing the fan shaft bearings.....the manufacturer suggests greasing by pushing out the old grease with the new grease. Makes sense, problem is that we have to safely climb to reach the zirk fitting (installing extension lines this week) and we currently have a manual/hand pump grease gun. Does anyone have any experience with a cordless/battery grease gun? Are the reliable? Do they pump a decent amount of grease?
    Thanks in advance for any information!

    Also, if this is in the wrong forum topic please let me know.

    Thanks, Nick

  2. #2
    Join Date
    Sep 2008
    Location
    hog town,toronto,canada
    Posts
    61
    alemite makes a good one,pricy but thats the way it is check with your bearing supplier for info.

  3. #3
    Join Date
    Jun 2006
    Location
    New Jersey
    Posts
    4,330
    We grease 4 times a year, as per our contracts. Normally it takes 2-5 pumps to start pushing the grease out of the bearings, depending on the size. I just can't see spending that much for a battery gun, when I can just pump a few times for $25.

    Also have you considered automatic lubicators. They are great in very hard to reach areas. We have some equipment it takes about 30 minutes and a 40' extension later to get to the top bearings. With the automatic, we only need to replace it once a year.

    http://www.snr-bearings.com/industry...ur_automatique

  4. #4
    Join Date
    Mar 2004
    Location
    Grottoes VA
    Posts
    5,856
    You could get Pneumatic Grease Gun and use a nitro tank.
    Karst means cave. So, I search for caves.

  5. #5
    Join Date
    Feb 2009
    Posts
    4
    What kind of bearings are you greasing? What kind of gun are you using that only takes 2-5 pumps? We are greasing fan shaft bearings on BAC cooling towers and with a hand grease gun we are having about 100pumps to push out the old grease. We have small auto lubricators but they only allow 10 feet of extension which only allows us to mount the units on the top of the tower. Checking these on a regular basis because time consuming and at $80 per refill kit makes this very costly.

    Long story short, the manufacturer recommends greasing semi-annually but our bosses bosses wants us to grease monthly (ok'ed by the manufacturer) which means the auto-greasers no longer an option due to cost.


    Quote Originally Posted by ascj View Post
    We grease 4 times a year, as per our contracts. Normally it takes 2-5 pumps to start pushing the grease out of the bearings, depending on the size. I just can't see spending that much for a battery gun, when I can just pump a few times for $25.

    Also have you considered automatic lubicators. They are great in very hard to reach areas. We have some equipment it takes about 30 minutes and a 40' extension later to get to the top bearings. With the automatic, we only need to replace it once a year.

    http://www.snr-bearings.com/industry...ur_automatique

  6. #6
    Join Date
    Jun 2006
    Location
    New Jersey
    Posts
    4,330
    Quote Originally Posted by saturnk1 View Post
    What kind of bearings are you greasing? What kind of gun are you using that only takes 2-5 pumps? We are greasing fan shaft bearings on BAC cooling towers and with a hand grease gun we are having about 100pumps to push out the old grease. We have small auto lubricators but they only allow 10 feet of extension which only allows us to mount the units on the top of the tower. Checking these on a regular basis because time consuming and at $80 per refill kit makes this very costly.

    Long story short, the manufacturer recommends greasing semi-annually but our bosses bosses wants us to grease monthly (ok'ed by the manufacturer) which means the auto-greasers no longer an option due to cost.
    I guess I misunderstood. If you feel that that all the grease in a bearing pack needs to be replaced on a monthly basis, then I don't know what to tell you.

    I would love to see BAC's literature that says that there bearings need their bearing packs to be fully replaced with new grease on a semi anual basis.

    What I was referring to, was we push about 1/8" of grease out of the bearing pack on a quartaly basis. We don't push the entire grease charge out.

    Maybe I wrong?

  7. #7
    Join Date
    Jun 2004
    Location
    Location:Raleigh NC
    Posts
    9,603
    Quote Originally Posted by ascj View Post
    I would love to see BAC's literature that says that there bearings need their bearing packs to be fully replaced with new grease on a semi anual basis.
    Me too ?
    If you help others then you are a Success

  8. #8
    Join Date
    Feb 2009
    Posts
    4
    I have attached the PDF with the BAC PM information. The O&M says quarterly (not semi, sorry) but during our owner operator training the BAC rep informed us that we should push the old grease out on a quarterly basis.
    Attached Images Attached Images

  9. #9
    Join Date
    Jun 2006
    Location
    New Jersey
    Posts
    4,330
    Quote Originally Posted by saturnk1 View Post
    I have attached the PDF with the BAC PM information. The O&M says quarterly (not semi, sorry) but during our owner operator training the BAC rep informed us that we should push the old grease out on a quarterly basis.
    You have me going now. (I hate having to think after work)

    An average grease gun will put out 1 oz every 30 pumps.

    So with your 100 pumps needed, lets say 3 oz of grease.

    So the question is, what bearing hold 3 oz of grease in its bearing pack? Let's take a common manufacture like Browning. There roller bearings that hold 3 oz are 4 7/16-4 1/2. There ball bearings that 3 oz are.....nothing, there biggest at 4" is still at 1.5oz.

    If you are working with 4 1/2", then I do appoligize. The biggest we really come across in 3" which only hold on average 0.85oz and we don't purge all the grease out of them.

    I still don't see where it tells you to purge all the old grease of the bearing pack.

  10. #10
    Join Date
    Jun 2004
    Location
    Location:Raleigh NC
    Posts
    9,603
    Quote Originally Posted by saturnk1 View Post
    during our owner operator training the BAC rep informed us that we should push the old grease out on a quarterly basis.
    I would ask for documentation on that statement from him if he meant to Purge ALL the old grease
    If you help others then you are a Success

  11. #11
    Join Date
    Feb 2009
    Posts
    4
    Copy that, thanks ALL I will have the rep give us further documentation. I want this to be a simple PM but correct as well.

  12. #12
    Join Date
    Jun 2004
    Location
    Location:Raleigh NC
    Posts
    9,603
    Let us know what he say and why The Purge ALL if thats the case
    If you help others then you are a Success

  13. #13
    Join Date
    Sep 2002
    Posts
    720
    If you are going to get one get this one. We have the older 12 volt model and it greases on average a dozen or more trucks, trailers and reefers everyday in 90 to -40 degrees and has not failed yet. The only weak link is the hose as we have had to replace it several times in the last year or so. But this is in some pretty harsh conditions. You must get the hose for that gun as a regular grease hose fittings will not work. For the price it is one of the best buys.

    http://www.tylertool.com/lincoln.html

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