hydraulic fan oil and filter

[timvasqz]

can you purg it without filter elements? I would just ;drain the
reservoir and ;refill then ;run the pump by screwdriver on the
starter motor and blow the return line into a bucket. if I was
concerned about foam when switching brands.

two closed system purges would get you down to only 75% new if that
replaced each time (reservoir capacity) was 50% of total capacity. 3
purges get you close to 87% new. 4purg close to 94%.I bet my
screwdriver purge method takes it down to 95%new with less than 1
gallon loss problem would be that the steering fan motor must
function other wise you have to drain the lines. I bet the charge
pump on the motor would burn up in less than five minutes if it was
starved.

Greg ofTim&Greg

--- In WanderlodgeForum@yahoogroups.com, "Kurt Horvath"
wrote:
>
> Here is an old post from a while back.
>
> I just got 9 of these filters. I intend to purge my system twice,
so
> I needed 9 of them
>
> http://www.adiesel.com/store/PT8487.html
>
> This site has them for less than $13 bucks a pc., The best price I
> found. They were over $40 bucks locally.
>
> The 95 coaches do use different oils according to engine type.
>
> The 8V92 uses an inline fitter in addition to the 3 reservoir
filters
>
> Parker Canister filter-(about 18" long in line street side), (
> according to BB somewhere between the radiator and the tag axle).
>
> Part #'s
> Parker 925835
> Donaldson P170073
> BB 2122026
>
> Reservoir filters All models, ( 8V92 & Series 60), use the same
> reservoir filters.
>
> The reservoir takes 3 filters.
>
> Part #'s
>
> Wix 57317
> Nelson 83284D
> Donaldson P550698
> BB 2137065
>
>
> The 8V92 uses 10W30, synthetic oils are ok to use.
>
> The Series 60 uses HD32. Synthetics are OK to use. BB cross
> referenced the recommended Dino. oil with CASTROL VS977 Synthetic.
I
> can't find it online. Waiting for return call from tech service.
>
> After lots of surfing today I have found out that HD32 is a Texaco
> product, Rando HD 32. As of July 2008 Chevron has the Texaco label
> and will continue to mfg. The Rando line of fluids.
>
> I also learned that any oil that is equivalent to ISO 32 should
work
> in the system. Some of these oils have a , AW or O&R rating. Anti -
> Wear and Oxidation and Rust. Some have a combination of prefixes.
> There are also biodegradable oils for Forestry and Marine
> applications. I would recommend staying away from these because
they
> generally have a shorter service life. It your call. I will most
> likely stay with the Rando HD 32 or it's synthetic version
>
> I know all oils are not created equal. The mineral based oils run
> anywhere from $30 to $60 for 5 gallons and the synthetics are $120
> and up, some way up. The blends fall in the middle.
>
> The capacity is 16 Quarts for the series 60 and 18 quarts for the
> 8V92, Jessie recommended buying 5 Gallons just to make sure you
have
> enough to refill the system.
>
> In my opinion I would think capacity would be determined by how
well
> you can drain the system of old fluid. So I don't think these
numbers
> are written in stone in this senario.
>
> To drain the system BB has a vacuum system that evacuates the
> reservoir. They do not recommend disconnecting any of the hydraulic
> lines in fear of creating a leak or breaking any connections,
> especially the elbow under the reservoir tank, I can understand
that,
> the line and elbow are quite a bit heavier construction than the
> tank, and BB has encountered breakage at that particular point
> according to tech services.
>
>
>
> Double oil and filter change
>
> This technique involves an initial oil drain and filter change, The
> system is then filled to the minimum level required and the fluid
> circulated until operating temperature is reached and the fluid has
> been turned over at least five times. The oil is drained and the
> filters changed a second time. An appropriate oil analysis test
> should be performed to determine the success of the flush. To
> maximize the effectiveness of this technique, the system should be
> drained as thoroughly as possible and the reservoir mechanically
> cleaned.
>
>
>
> Kurt Horvath
>
> 95 PT-42 WLWB S-60
>
> 10AC---
>
> In WanderlodgeForum@yahoogroups.com, "Don Bradner"
> wrote:
> >
> > Rolling Stock is $49.95 these days. Have never used it, but like
> Ron I know the author. Full-time RVer among other things.
> >
> > Don Bradner
> > 90 PT40 "Blue Thunder"
> > My location: http://www.bbirdmaps.com/user2.cfm?user=1
> >
> > On 2/28/2009 at 2:35 AM ronmarabito2002 wrote:
> >
> > >Dan: Have you had the coach out on the road recently. If oil is
> > >brown on the bottom, then it sounds like it has been setting
still
> and
> > >some solids have settled. Please do inform me of the analysis.
> > >
> > >I use a software to keep all my records. It is called Rolling
> Stock.
> > > It was designed by a friend of mine and several fleets use it.
Not
> > >sure what it cost right now. I was a Beta Tester on it several
> years
> > >back. If you are interested in it, I'll send you a URL to look
at
> it.
> > > It has a Reminders page to let you know when the next services
> are due.
> > >
> > >R.E. (Ron) Marabito, Dallas, TX 92WB40
> >
>