Safely remove hydraulic parts

frankinri · Nov 19, 2020

Wondering what it the best way to make sure it is safe to remove a hydraulic line. Is it always under pressure? I have some fittings and hoses I would like to repair and I have never removed one. The machine is a 1972 ford 4500 backhoe. Also wondering how to limit the amount of fluid lost during repairs. Thank you!

markct · Nov 19, 2020

Make sure the machine is supported or
boom etc on the ground and there won't
be any pressure and minimal oil loss.
Loosen line with a wrench and a bit
will leak out, take and cap the open
ports and you won't keep losing fluid

504 · Nov 19, 2020

After everything is either locked for transport or safely on the ground,shut the machine off and work
every hydraulic control lever.Work them through all of their cycles(up,down,float)you should be good
to go. Fluid loss can be slowed down by having caps and plugs ready to go on as you take the lines
off. I gave up a long time ago I just catch what I can to keep it off the floor, and I am not going
to reuse it anyway.

rustred · Nov 19, 2020

Pretty vague description as to what u are talking about. Is it a cyl. Hose
and for what ? And your to have caps and plugs for the connections when
removing a hose. But no idea what u are doing

SVcummins · Nov 19, 2020

Let the loader or hoe or stabilizers to the ground shut off
engine cycle the control valves to relive the pressure in each
circuit you wish to work on disconnect the hoses have a
bucket reafy to catch the oil

SVcummins · Nov 19, 2020

You can get jic plugs and caps to plug the components while
you have them unhooked to help prevent to much oil loss and
dirt entry

frankinri · Nov 20, 2020

(quoted from post at 22:55:10 11/19/20) You can get jic plugs and caps to plug the components while
you have them unhooked to help prevent to much oil loss and
dirt entry

Thank you all for your feedback, this is why I come here first. Now I know what the caps and plugs are called so I can get the correct ones. Also most of the process. When I cycle the valves with the machine off they will only move down. If I try to move them up they will not because the machine is off. I am assuming this is the case with most machines and you know mine would do the same. I am thinking that moving the valves in both directions just releases any pressurized fluid regardless of movement. I just want to make sure I understand completely before I remove the first one. Thank you again!

showcrop · Nov 20, 2020

(quoted from post at 04:40:13 11/20/20)

(quoted from post at 22:55:10 11/19/20) You can get jic plugs and caps to plug the components while
you have them unhooked to help prevent to much oil loss and
dirt entry

Click to expand...

Thank you all for your feedback, this is why I come here first. Now I know what the caps and plugs are called so I can get the correct ones. Also most of the process. When I cycle the valves with the machine off they will only move down. If I try to move them up they will not because the machine is off. I am assuming this is the case with most machines and you know mine would do the same. I am thinking that moving the valves in both directions just releases any pressurized fluid regardless of movement. I just want to make sure I understand completely before I remove the first one. Thank you again!

You got it. Nothing will go up, but allow any downward movement to stop before moving the lever to its other position and going on to the next lever.

Safely remove hydraulic parts

frankinri

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markct

Well-known Member

504

Well-known Member

rustred

Well-known Member

SVcummins

Well-known Member

SVcummins

Well-known Member

frankinri

Member

showcrop

Well-known Member

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