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Old 11-16-2012, 06:20 PM   #15
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Quote:
Originally Posted by Vanwill View Post
Hookum,

If possible, could you post the brand, model number and serial number of your steering gear box?

Thanks
Vanwill,

The steering gear box is a Ross, TAS#85109A1. Now there are several casting # on the side but they are not of importance. It is the TAS # that identifies the interior gear ratios. That being said, I did not do anything to do steering box other than they had loosened it up at CC when I complained that it seemed to be to tight. Then when we found the problem in the Hydraulic system, we put 3 turns back into the steering that had been taken out.

The steering box never had a problem, we were just groping at straws, trying different ideas, thinking that loosening the adjustment would help. but it didn't.

Reading the manuals, it mentioned the pump on 400 Cummings are different than the pumps on C-13. Cummings pumps are set up to push fluid to both the steering box and the engine fan motor. The Cat has two pumps, one for each.

If you need more information, feel free to ask.
Norbert
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Old 11-20-2012, 01:52 PM   #16
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Norbert, if you'll answer one more question, I promise I'll stop. When you have a chance, will you look at the cap holding the screw used to adjust sector shaft end play? Of all the TRW gears, I believe only the TAS 85 series gears have (8) bolts holding that end cap to the steering gear body. All others have (6) bolts. I'm just curious--that's a really heavy steering box to be used in a motor home.

Thanks,
Van
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Old 11-20-2012, 10:33 PM   #17
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Vanwill,
Ok, One more crawl underneath for you. I looked at it but I didn't count end bolts, but I will look again and report back. It is a VERY heavy duty gear box; but so are the rear ends, torsion arms, driveshaft, sway bars. No wonder this weighs 42K empty.

Norbert
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Old 11-26-2012, 10:32 PM   #18
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Vanwill,

Looking at the top of the steering box body, I see 8 bolts, 2 in each corner. I took several pictures and I was trying to download them into this reply but I don't know were they went.?? Outer space. maybe. I have never done any downloads or transfer of pics so I am totally lost. I can e-mail pics.

Looking at the area in front of the steering box, were the steering shaft and universal come in, I see only 4 bolts, but you were talking about the top were the adjustment stud is, correct? It is held up from underneath by 3- 1" bolts but I can see 2 bolts in each of 2 corners in my pictures, so I am assuming that the other 2 corners will have the same. Short of dropping the whole box, I will not see them all. And we are not dropping the box to count bolts. Agreed?
Norbert

P1010068.jpg (237.0 KB) P1010075.jpg (260.8 KB)


Ps. If these are 2 items above are the pics I lost, then it is a miracle!! I will post this and see what happens. (If pics somehow appear, I take no credit for it, for I know not what I doith.)
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Old 11-26-2012, 10:39 PM   #19
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Oh my gosh, THERE ARE PICTURES??? That is a 1st for me. Now if I were really good, I would be able to put arrows on them too. That is asking to much. Luckily in both pictures you can see the corners, 1 corner in the 1st pic and 2 corners in the 2nd pic that shows 2 bolts right next to each other.

Is that what you were referring to and asking about? I hope so.
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Old 11-27-2012, 10:43 AM   #20
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Norbert,

Thanks for going to that trouble. Yes, that is indeed a TAS 85 series box. I am surprised a box that heavy would be used on even a large coach. Looks like a case of "over-engineering", which is always nice to come across. Too often, we seem to be finding evidence of quite the opposite.

Thanks,
Van
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