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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Oliver FWA other Questions

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The Beakeeper

11-04-2005 03:27:19




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Am looking a an early 80's Oliver Industrial FWA backhoe loader tractor. HUGE hoe on a medium sized tractor/6 cylinder diesel. The drivetrain puzzles me/am not familiar with it. Forward/reverse has 2 peddles. Would this be a hydostatic drive machine rather than a torque converter drive? ( current owner not to mechanically inclined/knows little about the machine other than how to operate it it) Was this type of drive reliable on these machines? I know it's what they use on todays skidsteers ect but most larger backhoe loaders are torque converter drive for whatever reason... Also.. FWA??? Is this equivalent to 4x4? It has a lever to engage/disengage & the front axel ends have planetaries so can I ASSUME the front axel should be quite capable in "assisting" to the point of being equal to a 4x4 machine?

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Bob M

11-04-2005 06:57:25




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 Re: Oliver FWA other Questions in reply to The Beakeeper, 11-04-2005 03:27:19  
That's the Funk built "reverse-o-torq" transmission. When properly handled it works well and is relatively trouble free.

However the transmission's control arrangement makes it prone to abuse: In shuttle operation the tendency is to not use the brakes; instead to depend 100% on the transmission to halt motion when changing direction. This quickly overheats the transmission and damages expensive stuff inside (there's a 1600 loader down repair in my father in law's shop right now).

I have no first hand experience with the Oliver FWA. However we have a JD 5410 with a similar (fully mechanical) FWA. The sustem is bulletproof, and the additional traction when the front axle is engaged is dramatic. I have no reason to suspect the Oliver FWA is not just as effective.

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WFE

11-04-2005 04:40:30




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 Re: Oliver FWA other Questions in reply to The Beakeeper, 11-04-2005 03:27:19  
Interesting. The tractor you are looking at is a bit older than the early 80s. The Oliver industrial line would have ended or was changed to the White line by the late 70s. The drivetrain is what Oliver called the Revers-O-Torc drive and it is a fluid coupling, aka torque converter drive. I've never worked on one so I cannot say anything about its reliability. I am curious, perhaps someone can answer... who supplied this torque converter drive to Oliver? The FWA is a mechanical connection to the rear driveline, so yes it is quite capable.

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90%ret'd

11-04-2005 05:02:05




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 Re: Oliver FWA other Questions in reply to WFE, 11-04-2005 04:40:30  
Funk was the supplier on the earlier Reverse-o-torque, I believe Borg Warner supplied the ones used on the 1600 and later series. Funk unit used torque converter, gear train, and two hydraulic clutches. Borg used converter, planetary gear set with hyd. clutch and brake. Reliability was good if operator used a small amount of common sense, hope this helps.



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