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Topic: Hydraulic oil change (Read 688 times) previous topic - next topic

Hydraulic oil change

Just drained and cleaned the hydraulic tank, a couple questions, I can only find a synthetic blend of dello 400 will this be okay for the system? And when I put the lid back on the band doesn't seem to fit tight it will still turn with a little effort but the ears on the bands are touching no other movement so can't get any tighter?

Thanks
Mike
1999 36 ft U270
Build 5465

Re: Hydraulic oil change

Reply #1 –
Synthetic should not be a problem. Stick with the OE viscosity.

Are you using a new lid gasket???
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Hydraulic oil change

Reply #2 –
Mike,

1. Your next answer 999-55A is the gasket number Brett is referring to
2. Now it sounds like you need to index one of the bands. You may have both the male sides of the clamp together which makes the female sides together. If this happens it will result in your problem.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Hydraulic oil change

Reply #3 –
Thank you gentlemen for the reply, I did have the band on wrong, I didn't  get a new gasket, but will order one now
Thanks again
Mike
1999 36 ft U270
Build 5465

Re: Hydraulic oil change

Reply #4 –
Mike,

You aren't the first person this has happened to. At just a glance the ends look the same.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Hydraulic oil change

Reply #5 –
Especially for those of us who think we don't need our glasses
1999 36 ft U270
Build 5465

Re: Hydraulic oil change

Reply #6 –
Next oil change will be easier, plan on doing it more often
1999 36 ft U270
Build 5465

Re: Hydraulic oil change

Reply #7 –
Quote from: fatheeler –
Next oil change will be easier, plan on doing it more often
Great idea, think I'll do the same when I install my new pump....BUT, sheet do tend to happen, think I would plug the end of that ball valve.
Mike in AL
2001 U295
8.3 ISC 350
Build 5918

Re: Hydraulic oil change

Reply #8 –
I agree thinking plastic as lighter less strain on the threads, researching my paper work the last oil change I can come up with is over 50k ago, not good
1999 36 ft U270
Build 5465

Re: Hydraulic oil change

Reply #9 –
Quote from: fatheeler –
I agree thinking plastic as lighter less strain on the threads, researching my paper work the last oil change I can come up with is over 50k ago, not good
Tractor supply sells some made out of plastic/teflon over in the area where they have the heavy sprayers.
Mike in AL
2001 U295
8.3 ISC 350
Build 5918

Re: Hydraulic oil change

Reply #10 –
Brass would be good also.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Hydraulic oil change

Reply #11 –
Quote from: fatheeler –
Next oil change will be easier, plan on doing it more often
Why? And Why. Unless you have a failure why are you concerned with changing again. Mine was 20 years old and looked like the day it was put in. It is not subject to combustion and its byproducts. It's a sealed system other than heat/cool cycles. Mine had no evidence of moisture either. IMO your adding unnecessary weight to your coach and actually adding additional failure points and stress. Drain the oil. Put the drain plug back in and service. Repeat in say 20 years. Oil analysts would probably back up my statement. In regards to synthetic oil I first hand know they will seek leaks more FWIW

Re: Hydraulic oil change

Reply #12 –
The "leaking synthetic oil" was maybe true 40 years ago with older gaskets but a 40 wt. is 40 wt. whether synthetic or not.If
somehow oil is creating or finding a leak,how is it doing it?That's one of the main arguments against synthetics that the nay-
sayers use and it just is not true.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Hydraulic oil change

Reply #13 –
John Ive been around synthetic oil since 1980. Was involved with a SOAP lab ( spectrum oil analyst procedure) they would take oil and analyze what was in the removed oil. The system you are recommending already has seals that were not compatible with the original non synthetic oil used. May have heard of them, steering gear box seals. DWMYH I do use synthetics whenever practical
 

Re: Hydraulic oil change

Reply #14 –
Guess I have the synthetic oil special seals and they are not leaking,and yes I  have heard of steering box seals.
96 U270 BUILD 4810
85 380SL
Drummonds TN.