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Hydraulic unit replacements

To: "'Brett Russell'" <brussell@tcccom.net>
Subject: Hydraulic unit replacements
From: Ron Auger <ron.auger@olsy-na.com>
Date: Thu, 2 Apr 1998 11:58:51 -0500
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For those of you (if any) that are still hydraulic ...

On Wednesday, April 01, 1998 2:07 PM, Brett Russell 
[SMTP:brussell@tcccom.net] wrote:
> Hi Ron, I'm interested in some more info about that pump/motor/reservoir
> that you got from Hypac for your Brick.  Contact info, part #'s, pricing?
> Much appreciated, thanks.
>
Shortly after I bought #1631, the pump died. I went to the library (this 
was 1993) to research convertible top motor manufacturers for the auto 
industry. I did this out of ignorance of the club, Tanner, and the air 
system. In the Thomas Register I found an ad for Hypac and it had a photo 
of a unit that looked exactly like my original. Ultimately I bought two 
units and I think the only difference on the outside was 3 mounting legs 
instead of 4. So I had to drill another hole in my mounting plate. The 
second unit I mounted using a fire extinguisher holder. It wasn't an 
elegant solution but it allowed both units to live in the existing eqpt 
well with no mods to it. I also squeezed in 4 relays, two Twindows 
electronic modules (alarm components for window roll-up), and some 
additional wiring. One day I'll have to draw up a wiring diagram!

I talked to two helpful guys that may or may not still be there; Tom Hill, 
Tommy Lambert. The unit I bought was a 12V intermittent duty, 
bi-directional, 1/3hp, 3/4 GPM (gallons per minute), 25 cu.in. reservoir 
for $160 ('93 $s). They also made new hoses and fittings to my spec that I 
routed through a new hole in the eqpt well and up directly under the ram. I 
have cutouts in the eqpt well covers from the way the factory routed the 
hoses. I don't remember what I paid for the hoses (maybe $70).

I did remove the latch solenoids even though the new units have a pressure 
relief valve built in (the original did not). While pulling the wire for 
the latch solenoid I attached a speaker wire to replace it. Now I have 
speakers in the doors! Anyway .. I'm sure I wouldn't feel as much of draft 
if the doors were cinched closed, but I'd rather eliminate the possibility 
of warping the door. If I go over a swift rise at 70mph the courtesy light 
flashes a bit. But I'm satisfied with the results. They are still slow 
(about 12 seconds) but with the Twindow modules they are now one-touch 
operation by either the alarm remote or the existing inside or outside 
switches and cutoff when fully closed/open. And since they are fully 
independent systems (I added a 4th door solenoid) one can close while the 
other opens.

Had I known about the air system at the time, I would have gone that way. 
Although it took allot of time and engineering effort, it was a little 
cheaper in the end.


Hypac Inc.      (606) 849-2447  (606) 849-2401
Rt. 2  Box A1
Flemingsburg, KY   41041

You might want to evaluate another company:

Oildyne         (612) 533-1600
4301 Quebec Ave. North
Minneapolis MN  55428
(they have cylinders with internal limit switches. I'll have to look into 
this myself!)




                                        Ron Auger
(snail-mail) Olsy North America         Staff Software Engineer
        185 Plains Road Suite 302W      203-882-4373 (desk)
        Milford, CT  06460              203-783-1520 (fax)
(E-mail) ron.auger@olsy-na.com          800-759-8888 (bpr) pin#1153000
(C-mail) Ron Auger CMLA
(V-mail) 800-338-0775                           "Eschew  Obfuscation"


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