Grease gun question

massey85

Member
Why do I always have so much grease left in my gun when it
stops pumping out grease? Usually 1/4 a tube? What do I
need to do? What are the valves at to top for? I have two.
One is like a button. One is like a zerk , but not quite. Has a
little ball bearing covering a hole. I am going to try and post a
picture.
a213347.jpg

a213348.jpg
 
Bigger fitting is for filling from pump in a 5 gal bucket.
That is the way mine works anyway.I like to fill when about 3/4 empty.
Been working great form me for over 50 years.
 
If you are using grease tubes, do not store them laying down, stand them up. less chance of the tube getting air locked that way.
 
I've had the same question in mind, and never thought to ask it. I start a task by greasing the implement, then by the time I've finished the task, I've forgotten the problem I had with the grease gun. I think I'll look into the bulk grease idea. There seems to be a lot of waste with those cartridges.
Butch
 
I just use the standard garden variety grease guns. Have a couple standard lever pumps with different types of ends, and a pistol grip. All use cartridges, and all use up almost all the grease, save for maybe an inch or less. Maybe you're not bleeding all the air out?
 
YOU SHOULD NOT HAVe anything left in the cartridge. i never do sure sounds to me like you are air locking. that what the button on top is for the other is bulk fill opening use to do that years back but would never go back to the bulk mess. try this unscrew the top part some and see if air doesnt come out. i always install new tube put screw end on loosely put gun upside down and pump on it till air goes grease comes out then tighten top up snug. works till tube is empty even on my air powered unit
 
I've seen an air bubble inside tube. If all else fails, remove the flex grease line and see if you can get rid of the air bubble by pumping handle.
 
Try unscrewing the hose if it"s difficult to get the air out- then lock the rod in the extended position, and push on it to force air from the tube.
 
Tell me how you waste grease using bulk.
I can can get air pockets if I don't do it correctly,
I pump slow while filling and fill my gun when it 3/4 empty.
If you have to fill your gun when grease is below freezing I can see
problems there. I am curious as to waste.
 
Probably getting an air pocket in the pump. I never tighten the hose, just hand tighten it so it will be easy to remove. Take the hose off, hold your finger over the hole, pump the lever, using your finger as a check valve. You will hear the air pop out, get solid grease, replace the hose, good to go.
 
Seems to me like grease sellers have figured a way to intentionally put an air pocket in their tubes to make you think they're empty. Most of my guns Lever action) have a small vent hole and loosening the top a couple of turns will bleed the air out. Maybe one of those valves is a vent.
 
Thanks for all the replies. I think I will be better off now. Do the battery operated grease guns work better when in comes to the air bubble issue?
 
The grease guns we use here at school in the shop have the exact quantity of grease to complete a job. They are always empty when you go to get one to use. when and if they are put away . So that means that they finished the job with the exact right amount of grease in them, funny how that calculates out.
 
The grease gun I have never worked with bulk grease,it was like the piston was too small to seal without the thickness of the cartridge in it. It would leak air when loading, then leak grease by the piston while not in use. I use tubes anyway now.
 
Most hand or air operated gun have to have the follower piston/cup wiper on the rod turned facing to the rear for cartridges and to the front for bulk use.
 
(quoted from post at 08:10:11 02/05/16) Most hand or air operated gun have to have the follower piston/cup wiper on the rod turned facing to the rear for cartridges and to the front for bulk use.


Whole lot of people aren't aware of that!
 

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