----- Original Message -----
From: "Gunther Schadow" <gunther@aurora.regenstrief.org>
To: "Chuck McManis" <cmcmanis@mcmanis.com>
Cc: <port-vax@netbsd.org>; <classicmp@classicmp.org>
Sent: Wednesday, May 30, 2001 2:31 PM
Subject: Re: Can one repair (large) blowers?


> Chuck McManis wrote:
> >
> > Are they 3 phase blowers or 2 phase blowers?
>
> they are DC, 24 V DC 1.8 A. Most everything in the VAX 6000 is DC.

I'd hazard a guess that the brushes are stuck in the holders or just
plain worn out.

I've never had one of these pack up.  I use one as an emergency heat
extractor fan in the computer room at work.
AFAIK, they are a very conventional DC brushed motor.
I'll pull the one in the manhole down and have a quick look.

Cheers

Geoff in Oz