| Author | Message | ||
| doug tappan Rating: N/A |
what type of fluid are you crown guys using in your vickers pumps, thanks. | ||
| Henry R. Bergman, Jr. (Henryofcj)
Rating: N/A |
Automatic transmission fluid, type A. Not type F. CROWNS FOREVER!!  | ||
| doug tappan Rating: N/A |
Thanks Henry | ||
| darisb
Rating: N/A |
When I had BAB Steering Hyrdaulics rebuild the power steering system (Vickers) on my 4106, Bill told me to use only ATF Type F. Regards, Daris | ||
| Henry R. Bergman, Jr. (Henryofcj)
Rating: N/A |
darisb...now you have me somewhat confused. But then I do confuse easily. When I had my Crowns's Victor's VT-42 (right hand) assisted power steering pump replaced with a rebuilt unit, the hydralic supply shop guy said to use type A and not type F. He did not say why. Sossss....who knows. CROWNS FOREVER!! | ||
| darisb
Rating: N/A |
Not sure what to make of that. I didn't mean to cofuse anyone, just relaying what I was told. Bab Steering Hydraulics seemed pretty reliable. The did quite a bit of work for me, and it was all first rate. I've been using the Type F for a couple years now without any problems. I looked at another 4106 in 1998 or 1999. When we went for a test drive, the owner stopped for fuel. When the owner checked the power steering level and discovered it was low. My buddy (a class be truck driver) who went with us asked the owner if it took Type F. The owner said "yes", then bought a quart and topped it off. I don't know the owner, so I don't know if he knew what he was doing. This is all just what I have been told. For all I know, Crowns could be different. If I remember correctly, the 4106 maintenance manual recommends motor oil. RJ, do you have any thoughts on this topic? Regards, Daris | ||
| t gojenola
Rating: N/A |
I think the Vickers pump doesn't care one way or the other what fluid you run through it. The determining component is the PS unit itself. The sheppard unit on my 4106, for instance, (a bab steering reman) calls for 15-30 motor oil - not atf... tg | ||
| t gojenola
Rating: N/A |
Further on fluid specs: http://www.babsteering.com/services/Fluid%20Specs.pdf#sheppard2 | ||
| R.C.Bishop
Rating: N/A |
I have a complete spec publication on Vickers VT 17 and VT16 if any one needs a bit of info. I can perhaps scan and send a copy of a page or two. Bottom line is..... " SAE 10W or Automatic Transmission Fluid, Type A, which is preferred when operating near upper temp limits (180 degrees) and under high pressure conditions......Caution, do not use hydraulic brake fluid....." FWIW RCB '64 Crown Supercoach (HWC) | ||
| Syd Pygott (Sydstoy)
Rating: N/A |
The only difference between type F and type A trans fluid is type F can handle higher temps than type A. You can use type F in type A systems But you can't use type A in type F systems. Just in case anybody wanted to know. Syd. (I have a crown but haven't checked my fluid levels since I bought the bus.) | ||
| darisb
Rating: N/A |
My apologies. My memory was jogged by the link to the BAB site. That reminded me that Bill told me to use Dexron in my Vicker/Saganaw system, NOT Type F. I also remember him telling the Sheppard pumps used motor oil. Sorry, Daris | ||
| R.C.Bishop
Rating: N/A |
Could it be that type F did not exist 40 years ago? For very high temps ( 0-230 ) the specs call for " SAE 30 wt. oil" Or "0-210, SAE 10 W 30". Also quoted...." Automatic Transmission Fluid, Type A, should be used in Vickers VT16 and VT17 pumps. Approval for the use of any other type fluid must be obtained from the Mobile Hydraulics Division application engineering personnel. They should also be consulted where starting temperatures are below 0 degrees F." Just quoting the manual. I leave the service of that, along with other systems on our coach to my local Service shop. So far, so good. FWIW RCB '64 Crown Supercoach (HWC) | ||
| Henry R. Bergman, Jr. (Henryofcj)
Rating: N/A |
Hey...would this be a good excuse to mount ANOTHER temperature gage and sender on our coaches sosss we can check our power steering oil temperature going down the road? He he he. | ||
| R.C . Bishop
Rating: N/A |
Just tryin' to be helpful, Henry.... This nine page manual, ( not including covers and index) makes a lot of viscosity, pressure and temps...... wear being the big factor. Seems the temps are a big deal to them, invlufing recommendations for different weights for different temps and pressures. FWIW RCB | ||
| Gary Stadler (Boogiethecat)
Rating: N/A |
Whatever you guys do with your Crown steering pumps, make SURE you don't kill em. When you look at rebuilt pump prices and see all the pumps EXCEPT the Crown's Vickers at around $300-$400.... and then see the Crown ones...at least the one I have...$1400-$1500 OUCH you'll take real good care of the one ya have!! Yeow, why did Crown have to pick on the most expensive, least common one!!! | ||
| Henry R. Bergman, Jr. (Henryofcj)
Rating: N/A |
Gary....Crown Manufacturing did what they did because they could. That is why their school busses had a 10 year, 200,000 mile bumper to bumper warranty including parts and labor. Anyway, that is what I was told years ago by the head guy shop mechanic boss dude when I drove Crowns part time 35 years ago when I was pretending to go to college. I mean, why have just a fuse box when you can have automatic reset breakers? Why have just any old engine when you could have a pancake Big Cam Cummins or a cool 671T Detroit? Why exhaust brakes when you can...have...a....real.. JAKEBRAKE? Why have cheapo vacuum hydralic brakes with weak performance when you can engineer and fit HUGE monster 12 inch wide 16 and one half (I think!) full air brakes that you can lock up at ANY SPEED!! My Crown 10-wheeler has 6 of them and stops better than my car!!! Why have a cheap 2-ton 5 speed manual tranny when you can have a 9 or 10-speed Roadranger...or a very cool big Allision automatic? He he he. The mind boggles....well, my feeble mind anyway. Anyway, Crown did strange stuff which is why their busses were twice as expensive as their competitors and Crown went broke back in 1992. Yeah, my Victors VT-42 power steering pump is a very expensive puppy. In fact, the hydralic supply counter salesman guy said I did not want to even KNOW how much a new pump would cost. The rebuilt unit was enough, let me tell you. Are we having fun...yet? CROWNS FOREVER!! |