Stuck 3 Pnt Pin

Bill from Scotland · Aug 14, 2013

I have a leaking assister ram from my Massey Ferguson 1155 which needs new seals fitting. As you can see I have removed the drop arm/assister ram assemble and now want to seperate the two main parts. The pin holding the ram is secured by two drift pins, I have removed one. Can I now hammer out the main pin or does it need pressing out with a hydraulic press? I did try hammering it last night but it wouldnt budge and I dont want to break anything. Any thoughts welcome.
Bill

DavidP, South Wales · Aug 14, 2013

Hi Bill,
A press would seem the most suitable way of removing the pin. However there is a real danger of breaking one of the sides of the jaw unless the gap between the ram end and inside of the jaw is shimmed up tightly. My suggestion would be mount the arm securely in a vice on a heavy bench if you have one and heat the area around the pin. Keep the heat in the jaw metal and away from the pin. If you do not have an oxy-ecetylene kit a pressurized canister blowlamp can be quite effective. If after heating you can gain a little movement then you are on the way. Take care not to damage the end of the pin. Use a brass dift or similar. It's not likely to be THAT tight as the webs are relatively thin.
Good luck.
DavidP, South Wales

Masseynut(Australia) · Aug 14, 2013

You don"t need to remove the pin to re-kit the ram.
It may be awkward, but the rod can be removed from the cylinder by first removing the hydraulic nipple/fitting from the cylinder.
Pull the rod out of the cylinder, while looking thru the port in the cylinder and you will see a circlip on the end of the ram rod. With a screwdriver or equivalent, pry the circlip into the next groove beside it. It will be slightly deeper, and allow the circlip to clear the ram casing when the rod is pulled further outwards.
Once the rod is out, you can replace the leaking seals,
Evan.

Bill from Scotland · Aug 14, 2013

Hi David
Got it out with some heat but it was real tight, taking it to our local hydraulics guy tomorrow to see what he thinks. Seals are real expensive from our local Massey dealership but I think I may have identified a supplier in the US who can do them much cheaper including shipping so we will see.
Bill

Bill from Scotland · Aug 14, 2013

Evan
Thanks for the advice, as you will see I actually managed to seperate the two parts which should make it easier to do.
Bill

DavidP, South Wales · Aug 14, 2013

Hi Bill, Are you in the States or Scotland?

As Evan has said it is not necessary to remove the pin in order to replace the seals. I was merely answering your question.

Seals should be readily available from any hydraulic supplier. Try and remove the old ones without damaging them. There should be an identifying number or size on each one.

Be sure that you take not of the way that the seals are fitted so that they can be refitted correctly.

Let us know how you get on.
Cheers
DavidP

Bill from Scotland · Aug 14, 2013

Hi David
Still in Scotland for another three weeks then we are away for 29 days.
Bill

DavidP, South Wales · Aug 15, 2013

Hi Bill,
Had a sudden work trip to Motherwell from South Wales last week to repair one of the machines that I am the UK service engineer for. Have a look at the noremat website.
Cheers
DavidP

Stuck 3 Pnt Pin

Bill from Scotland

Member

DavidP, South Wales

Well-known Member

Masseynut(Australia)

Member

Bill from Scotland

Member

Bill from Scotland

Member

DavidP, South Wales

Well-known Member

Bill from Scotland

Member

DavidP, South Wales

Well-known Member

Similar threads