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  #1   IP: 80.229.18.228
Old 09-04-2014, 07:16 AM
8015_bloke 8015_bloke is offline
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Default Bleeding hydraulic fluid on an 8015

Hi,

I had a couple of hoses start leaking recently so I'm going to bite the bullet and change all of the hoses (6) that goes through the kingpost - they're 13 years old. Whilst I'm at it I'm hopefully going to fit a lower bush, not replace, on the boom ram as the previous one is missing giving me a lovely bounce. The hydraulic fluid is of unknown age so I'll replace that.

I'm ok with most of what needs to be done but I'm unsure on A, the best way to drain the hydraulic fluid although I was just going to remove the fluid filter and catch it, and B, how to bleed the new fluid around all of the circuits, obviously bleeding to a ram involves slackening the nut on the hose until fluid comes through, but how do you get the air out of the ram ?

Does a ram or control lever have a small amount of flow back to the tank thus taking the air with it ? i know that the slew and track motors do.

Cheers

Simon.
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  #2   IP: 2.102.14.81
Old 09-04-2014, 08:44 PM
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mogman mogman is offline
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Default Re: Bleeding hydraulic fluid on an 8015

Not sure on your machine but I would of thought there will be a drain bung in the bottom of the tank

As for bleeding the system just put the rams through a couple of full cycles and the air will go back to the tank
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  #3   IP: 80.229.18.228
Old 10-04-2014, 06:54 AM
8015_bloke 8015_bloke is offline
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Default Re: Bleeding hydraulic fluid on an 8015

Cheers Mogman, we'll see how it goes.

S.
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  #4   IP: 86.162.64.98
Old 10-04-2014, 07:53 AM
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Regy53 Regy53 is offline
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Default Re: Bleeding hydraulic fluid on an 8015

Close all the rams lol
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  #5   IP: 80.229.18.228
Old 10-04-2014, 08:09 AM
8015_bloke 8015_bloke is offline
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Default Re: Bleeding hydraulic fluid on an 8015

:-) it's definitely a case of 'fix all the things' when it comes to my old banger, the things you miss when you're buying, the guy who sold it to me said he'd buy it back when I've finished with it, it'll be a brand new machine at this rate.

S.
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