Re: Oshkosh 917 Chassis data? Reply #20 – April 18, 2017, 10:29:50 pm The front brakes are cam driven, the rear brakes are wedge style. The book shows wedge style both ends. I guess that the front end/axle has been replaced . No crash damage apparent . Quote Selected
Re: Oshkosh 917 Chassis data? Reply #21 – April 18, 2017, 10:35:28 pm Yes they were all wedge. Full backing plates.Yes on the speed/rpm. Full revs governed at 2650 for a 250 cat.Speedos wrong? Verify with gps driving?Should have 9r22.5 tires. 255? Quote Selected
Re: Oshkosh 917 Chassis data? Reply #22 – April 19, 2017, 09:03:13 am GPS says 62, speedo says 69-70. new 255/70 / tires. Sampson. Thanks,MM Quote Selected
Re: Oshkosh 917 Chassis data? Reply #23 – April 19, 2017, 02:12:37 pm I do not think that the v917 had 70 series tires. 80? Found a post where someone was replacing the 9r's The tire that matched up best to my 9R22.5 was the 265/75R22.5 and I had a choice of 4 manufacturers - Michelin, Goodyear, Toyo, and Bridgestone. I picked the Toyo. Every measure the same except for 1" width increase. 255/70's would seem to be shorter?The 300 ored side radiators came with 10r's btw Quote Selected
Re: Oshkosh 917 Chassis data? Reply #24 – April 19, 2017, 03:35:22 pm Yup, two alternatives to the 9R: Michelin 255/80R22.5. Other brand's 265/75R22.5. Quote Selected
Re: Oshkosh 917 Chassis data? Reply #25 – April 19, 2017, 03:41:22 pm Quote from: wolfe10 – April 19, 2017, 03:35:22 pm Yup, two alternatives to the 9R: Michelin 255/80R22.5. A great tire for down here, wider, but plenty of clearance. Rides perfect at 82 psi! Quote Selected
Re: Oshkosh 917 Chassis data? Reply #26 – April 19, 2017, 09:56:10 pm If you have the s cam front brakes, then you must have the 300 hp cat with the side radiator. Quote Selected
Re: Oshkosh 917 Chassis data? Reply #27 – April 20, 2017, 01:56:37 am Red tractor: I do not remember that the 300 had different front brakes from the 250. You sure? Quote Selected
Re: Oshkosh 917 Chassis data? Reply #28 – April 20, 2017, 10:11:21 am Red Tractor is one of the better mechanic's and I trust his judgement, he is not a sales person. Quote Selected
Re: Oshkosh 917 Chassis data? Reply #29 – April 20, 2017, 12:29:23 pm Bill I sold these new and was a product guy and had the chassis blueprints from Oshkosh and was not aware of a brake difference between the ORED 250 and the 300 ATAAC. They all had the lq4 front brake disconnect below 60 psi apllication pressure as far as I tested.My info stopped the first time in late 89.Went back in 93.Simply idle curiosity and to add to my weird product knowledge.More brakes would have been a good idea as I could get smoke from the rear drums down long grades at medium brake pedal pressure as the fronts were not connected.Front rims cold to the touch. Rears hot.Tested many times.Bigger s cam front brakes and having them on at all pedal pressures would have helped this I think.Marquis had much larger s cam brakes with no backing plates and used to shudder in reverse some Quote Selected
Re: Oshkosh 917 Chassis data? Reply #30 – April 20, 2017, 12:50:49 pm This one is #31273, 11/ 87, 9r tires. Rear rad- no charge cooler. It shows some slight "run over object" damage . The fuel tank bracket has a center hit, the trans pan has a dent. I am guesing that the axle was swapped. Thanks for the tips ,MM Edit ; found the Oshkosh delivery tag; S cam front , wedge rear brakes. Quote Selected
Re: Oshkosh 917 Chassis data? Reply #31 – April 20, 2017, 05:49:42 pm Maybe remembering wrong, but thought so, of course that was a lot of years ago and much water under the bridge since then. Quote Selected
Re: Oshkosh 917 Chassis data? Reply #32 – April 20, 2017, 06:14:41 pm No! Really red? Haha Quote Selected
Topic: Oshkosh 917 Chassis data?