Correct Solvent for fluid flush

[nickwarchol]

In the Meyer service manual it states:

"Flush the complete system including unit, hoses and Power
Angling rams with a non wax (Napthenic) cleaner. If
kerosene (Parrafinic) is used to flush the system, the
system must be flushed again to remove any kerosene
with a (Napthenic) based cleaner that is wax free ."

I see in quite a few messages that folks are recommending kerosene to flush the system and nobody states which Napthenic based cleaner to follow it with. I think that is because, just like me, nobody knows what the heck that means.

Does anyone have a clue of what (Napthenic) cleaner to really use?

Thanks,

Nick

[bud16415]

Inquiring minds want to know.

Sounds like they want to not have residual wax left from the kerosene. That turns solid in cold temps. How much could be left who knows is it CYA on their part. Who knows. You will most likely be getting out a million times more stuff than you will be leaving behind IMO.
Below are a couple google leads

http://www.nu-lifeoils.com/napthenic.html

http://www.nynas.com/sa/node.asp?node=72

[rocknrollredneck]

I just use solvent from my parts washer. :geekboy

[bud16415]

I just use solvent from my parts washer. :geekboy


I hope its clean fluid

[rocknrollredneck]

I wouldn't use it otherwise!

[bud16415]

The reason I said that is because the tolerances internally in hydraulic valves is incredibly close. I have seen the smallest fleck of Teflon tape come off the end of a fitting and jam something up in machinery. Parts washers by nature don’t stay perfect even when freshly refilled. Snowplow pumps don’t have the high-grade filtration like some things do. So any small partial can keep moving around till it finds a permanent home. The better you strive for clean the better you will be. The original post was about using kerosene and the wax in it. personally I would be less worried about wax than a grain of brake dust etc.

[rocknrollredneck]

Bud16415,
you make a good point. I hadn't even thunk of that. I've flushed them that way for years, and I've never had a problem. but, since you put that bad idea in my head...I'll still use it, but I'm gonna put a fuel filter in-line. :salute

[Chuck Smith]

Compared to what the kerosene loosens and removes, I wouldn't worry about a minute amount of wax! Guess Meyer changed things, they used to just recommend kerosene. Guess they found a problem they can blame on wax....

~Chuck

[bud16415]

Bud16415,
you make a good point. I hadn't even thunk of that. I've flushed them that way for years, and I've never had a problem. but, since you put that bad idea in my head...I'll still use it, but I'm gonna put a fuel filter in-line. :salute
RnR Redneck

The fuel filter is a good idea and you will be able to get an idea of what kind of stuff will be picked up in the filter. Let us know how long one lasts in the washer. And crack it open when and if it plugs and see if there is anything solid in it that could have wore or jammed a valve.

[rocknrollredneck]

I'll let you guys know if anything happens with that.
I took a closer look at my parts washer...and it has a super fine screen on it, and the pickup is almost 6 inches off the bottom, so it'd probably be okay either way. I'm still gonna filter it though from now on.
I like doing it this way just because I don't have to worry about where to put the fluid after I'm done, and it doesn't cost a thing.
and since everything I do involves taxpayer money...I like to be frugal.:cash

[nickwarchol]

Thanks for the responses. I'm trying to resurrect a used ST-78 plow to put on an old jeep. I found that I had a bad angle cylinder so the flushing question is moot now that I'm replacing both angle cylinders and the hoses.

Nick

[rocknrollredneck]

no problem Nick. good luck getting her goin...even if you are puttin it on a Jeep. J.ust E.mpty E.very P.ocket

can you save some bucks and rebuild your cylinders?

[nickwarchol]

One of the cylinder is showing some pitting on the shaft so it is pretty much junk. I couldn't see it until I hooked it up and extended it. The second one is in OK shape but I just decided to replace them both. I don't need to have something break when its cold and snowing.

Nick