hydraulic pump

[jpb04619]

i was using my 57 case 310 crawler loader yesterday to move gravel for my new garage when it started to make what i would describe as a heavy knocking noise and suddenly no hydraulics..when i shut it down i got several realy loud rapping sounds.........think i can see some movement on the plate under the pump and the bolts are not tight..any idea what i should look for/at ........ not engine noises , it was rebuilt a couple of years ago and works A1.......... it is the 4 cylinder continental gas .... john b

 

[jpb04619]

ok , more information.....the problem is the coupling between the crank and the hydraulic pump....it had a allen screw in it , i think to keep it from walking toward the crank but there was no sign of the allen screw....i tapped the hole and reinstalled the screw but it would not keep the coupler from moving.........i tried putting a few washers in front of the couple but it was too far gone and now is completely stripped.....toast....am i going to have any trouble finding anothere coupling [both pieces] i am hoping this was used on many other machines john b

 

[Anonymous-0]

I think that most of those couplings are common. Try taking it to a hydraulic place or a bearing supply house. My local bearing house had the one I needed on an International backhoe a couple of years ago.

 

[jpb04619]

appreciate the rep;y..will try john b