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Tool Talk Discussion Forum

Hand pump grease gun

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Deamer

04-05-2004 05:50:02

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Hello. I bought two hand pump grease guns. They are new with 18 inch extention hoses. Everytime I put in a new tube of grease it quits working. I fool with the plunger, then after approximately 10 gazillion hand pumps it starts working again. Why does it take so many strokes to continue working? Anyone else have this problem? Thanks for your time.

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Bill

04-10-2004 08:23:10

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Re: Hand pump grease gun in reply to Deamer, 04-05-2004 05:50:02

Dreamer, Just get into a habit of not tighting the cover all the way tight untill you pump the gun a few strokes. then tighten it. As mentioned below check for a vent hole in the cover. good luck

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Deamer

04-12-2004 06:36:54

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Re: Re: Hand pump grease gun in reply to Bill, 04-10-2004 08:23:10

I've experimented some with all the good ideas everyone had. I had been tightening the top prior to pumping the handle. By leaving the top slightly loose and pumping the air out has helped a lot. Also I found that the cases of grease I purchased at the local "Farm and Fleet" store, weren't completely filled with grease. The tubes are filled to approximately 1 1/2" of the end of the tube, leaving quite a large air gap to put out when putting in a new tube of grease. I loosened the top, pumped the air out...that worked very well. Thanks for all the good input.

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MAC,IL

04-07-2004 09:43:13

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Re: Hand pump grease gun in reply to Deamer, 04-05-2004 05:50:02

I got 2 guns, but both have bleeders on top. When I get done I always hang it up hose down. Seems to work OK for me. When I win the lotto or get 150 bucks ahead, I am gonna get one of those new fangled battery operated jobbies.

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john d

04-06-2004 20:48:22

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Re: Hand pump grease gun in reply to Deamer, 04-05-2004 05:50:02

Try pumping it a couple of times while the head of the gun is only screwed half-way onto the gun. I'll also agree with the previous poster about storing the grease in a vertical position!

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kyhayman

04-06-2004 12:06:34

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Re: Hand pump grease gun in reply to Deamer, 04-05-2004 05:50:02

May be your grease too. I used to use B660 from my local Southern States Co-op. Worked great and probably wouldnt air lock over 2-3 times out of a whole carton. They started carrying Warren grease (red stuff, same as Walmart) and I waste half of each tube. It is stiffer thean the spring in the grease gun, couple of times I've even heated the grease gun to get it to flow.

Good news is that enough folks complained that Southern States is going back to Universal Cooperative lubricants.

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Deamer

04-05-2004 21:20:20

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Re: Hand pump grease gun in reply to Deamer, 04-05-2004 05:50:02

Appriciate all the good input. Think I'll try drilling a small hole in one and see if it helps. Thanks again.
Deamer

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Fern(Mi)

04-05-2004 17:57:33

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Re: Hand pump grease gun in reply to Deamer, 04-05-2004 05:50:02

The second thread from the top inside of busness end cap dirl 1/16" hole. Load gun with new cartridge, Back cap off until Bottom spring's pushed air out unthreaded vent, Close or tighten busness pump-end cap. Ready to go. Works for me.
Fernan

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smurph72

04-05-2004 09:07:59

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Re: Hand pump grease gun in reply to Deamer, 04-05-2004 05:50:02

I used to sell lubricants for a living, and one way to avoid that problem is related to storage. If you store your grease in an upricht position, it won't get the air pockets in the tube that aggravate the problem you've got.

I've seen this many times in mechanic/service trucks that keep several tubes lying down. The vibration and movement makes the grease settle within the tube creating air pockets that hamper use of the grease. Storing the tubes upright actually settles the grease better and makes the gun work better.

Email me if you have any other questions.

dcm

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JMS/MN

04-05-2004 08:13:29

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Re: Hand pump grease gun in reply to Deamer, 04-05-2004 05:50:02

Ditto on what Tim and Rod say, plus this: You should be able to pull the operating rod out, turn it and lock it with a little back push. Put some pressure on it while it is locked in place- it helps push the air up while you pump with the hose unscrewed or the bleed valve open.

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TimV

04-05-2004 07:41:51

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Re: Hand pump grease gun in reply to Deamer, 04-05-2004 05:50:02

Dreamer: Not that you probably haven't already checked, but many grease guns have a bleed valve on the top for just this reason. It's usually either a plunger or sometimes a plug that you unscrew enough to let the air out. Install the new cartridge, open the bleed valve, pump it a few times, and the gun should begin working normally--you'll feel it "tighten up" as it starts pumping grease instead of air. Close the valve and you're off to the races.

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Rod (NH)

04-05-2004 05:55:39

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Re: Hand pump grease gun in reply to Deamer, 04-05-2004 05:50:02

Hi Deamer,

They can become air bound after installing a new cartridge. I usually just unscrew the hose temporarily and give the handle a couple of pumps to clear any air and get fresh grease up to the base of the hose area. Works for me.

Rod

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wdTom

04-05-2004 17:27:14

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Re: Re: Hand pump grease gun in reply to Rod (NH), 04-05-2004 05:55:39

Unscrewing the hose and pumping is the way. It can help to place a finger over the hose opening on the return stroke to create a vacume to help suck the grease in. Unscrewing the whole cover/pump assembly a LITTLE can let air out too. Maybe one turn, you don't want it to come off and have a tube of grease in your lap.

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