Early A-type OD units used cast-iron rings with a gap instead of
continuous 'rubber' O-rings in the accumulator and operating pistons.
My guess would be that they leak down faster as a result. Can't see why
this would be an issue, unless you try to get 2nd OD right after
starting out (forgot to turn the switch off overnight).
Randall
Anthony Rhodes wrote:
>
>
> I am told that the accumulator should hold pressure for a long time (more
>than 10 minutes).
> Mine holds pressure so that over a whole 8+ hour day it still reads pressure.
> Brian Schlorff
> tells me that GOOD accumulator seals will hold pressure with only a hundred
>or so PSI drop
> overnight.
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