Using a Grease Gun

   / Using a Grease Gun #1  

awlchu

Gold Member
Joined
Sep 18, 2004
Messages
273
Location
Central Indiana
Tractor
JD X595
I was taught to pump in grease until it (appears) begins to push out near a joint. Is this true or do you completely flush the older grease out with the newer grease? Seems like a waste to completely replace the grease in the assembly.

For mowing desk spindles etc. how much grease do I need to inject into the assembly? I don't know if I can even see a weep port or seam. (JD 54inch deck)

thanks,

Brian
 
   / Using a Grease Gun #2  
I normally just hit each zerk with three or four pumps. I can feel it when its getting ready to blow out all over. When I switched to an air greaser, I just hit each zerk quickly and dont worry about it weeping out. I grease about every 10 or 15 hours on the equipment.
 
   / Using a Grease Gun #3  
Each of my fittings take different amounts of grease. I've done them so many times now that I can pretty much guess when a certain one is gonna take allot of grease or just a little.

I put enough in until I see it comeing out, then stop.
 
   / Using a Grease Gun #4  
On a "U" joint you should put it in until it comes out at all 4 points, other areas about 3 pumps should do it.
 
   / Using a Grease Gun #5  
For non-rubber booted joints, I pump it until the grease begins to seep out.
For rubber booted joints, I pump it 3 times or until I feel a wee bit of resistance (whichever comes first).

- Bill
 
   / Using a Grease Gun #6  
If you let some come out you get some of the fine dirt out cuts down pin wear.
 
   / Using a Grease Gun #7  
I'm like most of the other guys: give each point 3 or 4 pumps. Can often hear it just before it wants to come out in quantity. For covered joints like tie rod ends or vehicle ball joints, you only want to put in enough to barely start to puff the boot.

Ralph
 
   / Using a Grease Gun #8  
Like most of you, on my own equipment, I put in grease till I see a bit seep out or until I fill a bit of pressure (like the cavity is full).

Not trying to be a know it all... Just for your info: I'm am aircraft mechanic... Our acft maintenance manuals say to completely flush the old grease out...
 
   / Using a Grease Gun #9  
</font><font color="blue" class="small">( Our acft maintenance manuals say to completely flush the old grease out...
)</font>

I suspect that requirement for aircraft is due to the chance of moisture getting trapped inside the rotating joint and then freezing at altitude. When you consider the huge variation in pressures and temperatures an airplane goes through, that does not surprise me at all. However, most tractors will never have to takeoff or land in slush ice at 200 mph. /forums/images/graemlins/smile.gif
 
   / Using a Grease Gun #10  
I swithed almost entirely to a Lincoln Electic Powerluber ( or what ever its name is). Does anybody know how it's clicks relate to pumps on a normal grease gun. Or perhaps I should read the manual? /forums/images/graemlins/confused.gif

Andy
 

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