Bucket cylinder installation

[moojamboo]

I am reinstalling the bucket cylinders on my Ford 1710. they were leaking so i had them repacked by my dealer. To reinstall the cylinders how do i connect the hydraulic lines so that i don't put air in the system.

I have read conflicting statements on other posts.

1.) Someone said to connect all the hydraulic lines back together and then cycle the cylinders 10 times and that would push all the air to the hydraulic reservoir.

2.) Another person said to install the intake line for the cylinder and leave the line off the bottom of the cylinder and cycle the cylinder until fluid comes out the bottom line then reconnect the line to the system.

option 2 seems like i may suck air into the system while cycling the cylinders. but option 1 seems like i will suck the air already in the cylinders into the system.

any advice on how to reinstall would be helpful.

Thanks,
Matt

 

[mmurphy]

Just cycle it with everything hooked up normally. Air will push out through vent of hydraulic reservoir.

 

[Wayne County Hose]

Option 1 seems like your best choice.

 

[kennyd]

Option 1 seems like your best choice.

^^^^^^
What he said:thumbsup: Hook up the hoses and cycle the cylinders, the system is self purging.

 

[moojamboo]

Thanks for the advise. Hooked everything up cycled the cylinders and one worked beautifully the other is spewing hydraulic fluid from the locking ring slot. Going to take the cylinder back to the dealer tomorrow and see what they say...prior to having the cylinder repacked the cylinder was leaking from the cylinder head...any ideas why the cylinder is leaking from the locking ring slot now? did the dealer mess up my cylinder?


thanks,
Matt

 

[SSdoxie]

May have damaged seal at install, or might be damaged gland or cylinder barrel which caused first leak.

 

[moojamboo]

If it leaks now worse than it did when i took it off to get repacked would that lean more toward being the seals not something with the cylinder?

 

[Wayne County Hose]

Thanks for the advise. Hooked everything up cycled the cylinders and one worked beautifully the other is spewing hydraulic fluid from the locking ring slot. Going to take the cylinder back to the dealer tomorrow and see what they say...prior to having the cylinder repacked the cylinder was leaking from the cylinder head...any ideas why the cylinder is leaking from the locking ring slot now? did the dealer mess up my cylinder?

thanks,
Matt

There is a torn o-ring just inside the locking ring between the gland and the barrel. This is why any good hyd shop bench tests cylinders before you have a problem.

 

[wdchyd]

There is a torn o-ring just inside the locking ring between the gland and the barrel. This is why any good hyd shop bench tests cylinders before you have a problem.

Yes, this should have been bench tested before it went out.....another thing to check would be the gland head itself, the fords do have a cracks in the ductile iron occasionally......have them look real good...

 

[ptexer]

Has anyone ever wrap the gland threads with cellophane wrap (kitchen supply) to protect o rings during installation. It is an idea I might try tonight, would like feedback. Good idea bad idea.

 

[kennyd]

Has anyone ever wrap the gland threads with cellophane wrap (kitchen supply) to protect o rings during installation. It is an idea I might try tonight, would like feedback. Good idea bad idea.

I use a sheet of very thin brass shim-stock. I would be concerned about the cellophane tearing and getting some inside the cylinder. Lube the O-rings with hydraulic oil as well.

 

[J_J]

I have used the material from a coke can for a cyl guide. Very thin Aluminum. Cut the can into a flat sheet and wrap around the piston and slide it in the bore. Hold on to the Aluminum as you slide the lubed cyl in. Remove it and save it for the next time.

 

[Wayne County Hose]

Has anyone ever wrap the gland threads with cellophane wrap (kitchen supply) to protect o rings during installation. It is an idea I might try tonight, would like feedback. Good idea bad idea.

Very bad idea. Very very bad idea.

 

[ptexer]

thanks fellows. I got some .003, .004, and .005 Precision brand shim stock. I wasn't going to put the wrap inside the cylinder only on the gland to put o ring on before reinstalling the rod. The shim stock will work much better and can use it the way you mentioned in your replies.

 

[moojamboo]

So i just got the cylinder repacked for the second time from the dealer and for the second time i hooked they hydraulic lines up to it and again it was leaking from the lock ring hole and the cylinder shaft didn't move.

so tomorrow i will go back the dealer and see what they have to say. they did the second repack free of charge but I'm a little worried that they don't know what they are doing or that there is something else wrong with the cylinder that they are missing.

it takes me an hour to get to the dealer so any ideas anyone has on what might be wrong with my cylinder would be appreciated so that i can clear this up without too many more trips to the dealer.

 

[ptexer]

I hate when stuff like that happens. I would ask them to hook up the cylinder and test it there after they rebuild again.