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Old 17 June 2009, 15:38   #21
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Originally Posted by doggypaddle View Post
thats it exactly. if PAS fails then the steering gets a bit heavy.
Just when I thought perhaps I knew something

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the metering unit in the orbitrol steering valve
You drop something in to deflate me again

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Old 17 June 2009, 16:21   #22
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Yeah I'm lost now .. explain Doggy
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Old 17 June 2009, 18:39   #23
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thats it exactly. if PAS fails then the steering gets a bit heavy.
if full power steering fails it can whizz onto full lock and the steering wheel can rotate with enough force to break fingers! the metering unit in the orbitrol steering valve can act as a motor
I have heard of this happening with old landrovers.
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Old 17 June 2009, 19:05   #24
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I have heard of this happening with old landrovers.
???? An old Landrover with power steering? Where'd you get one like that? I'd got arms like Garth by the time I'd finished with my mark IIA LWB.

I'll agree, if you hit a rock in just the right way, you could end up being whisked around like a catherine wheel if you forgot to let go. I remember parallel parking (if you could find a space long enough) was exercise worthy of an Olympian.
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Old 17 June 2009, 22:04   #25
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???? An old Landrover with power steering? Where'd you get one like that? I'd got arms like Garth by the time I'd finished with my mark IIA LWB.

I'll agree, if you hit a rock in just the right way, you could end up being whisked around like a catherine wheel if you forgot to let go. I remember parallel parking (if you could find a space long enough) was exercise worthy of an Olympian.
I don't mean THAT old!!! But RR had it fitted from 1973.........
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Old 18 June 2009, 09:54   #26
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Yeah I'm lost now .. explain Doggy
an orbitrol or orbital valve is just a rotary spool valve, the bit the steering wheel is mounted on on a tractor.
when they fail the steering wheel can whizz aroundthis is because there is a small pump/motor in the base to provide feedback to the spool valve from the steering ram.
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Old 18 June 2009, 10:00   #27
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an orbitrol or orbital valve is just a rotary spool valve, the bit the steering wheel is mounted on on a tractor.
when they fail the steering wheel can whizz aroundthis is because there is a small pump/motor in the base to provide feedback to the spool valve from the steering ram.
I knew that
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Old 18 June 2009, 11:30   #28
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I knew that
Then you would know theyre like winches..........they can break your fingers when it all goes wrong
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Old 18 June 2009, 11:35   #29
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Is we starting to stray slightly from the original thread!!

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Old 18 June 2009, 15:43   #30
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Then you would know theyre like winches..........they can break your fingers when it all goes wrong
I'm glad you find my pain funny
You related to my wife?
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