Rack Discussion Continued - Slide lubricant

Chris Elmquist chrise at pobox.com
Wed Mar 2 12:10:35 CST 2022

On Wednesday (03/02/2022 at 12:05PM -0600), Mike Katz wrote:
> I have several difficult slides in my H960 rack.
> What is the best lubricant for the slides?
> I was wondering if graphite would work better than oil due to the fact that
> it won't pick up dirt and dust.

I have not done this yet on these particular slides but I think I would
clean them well with something that would remove the old lubricant--
maybe isopropyl alcohol or even WD-40 (as a cleaner, not a lubricant)
and then grease them with light, white lithium grease.

I have used such on other equipment slides with success.


> On 3/2/2022 10:45 AM, Chris Elmquist via cctalk wrote:
> > On Tuesday (03/01/2022 at 04:36PM -0800), Marc Howard via cctech wrote:
> > > I've got a PDP 11/34 I've never opened up.  It's mounted in a H9642
> > > cabinet.  I can't get the bloody thing to extend on the chassis track
> > > slides.
> > > 
> > > Is there a catch or lock screw on this unit?
> > Mine (and we may be learning, is not be a proper configuration) does not
> > have any release or catch to allow the CPU to slide out.  I just grab it
> > and start pulling and it slides out--  although it does not slide easily.
> > That could be due to old, stiffened lubricant on the slides.
> > 
> > BUT! make sure you pull out the front foot at the bottom of the rack to keep
> > the whole rack from tipping forward if you do get the CPU to slide out.
> > 
> > The CPU is a heavy beast and the rack WILL tip forward once the CPU is
> > out far enough.
> > 
> > Chris

Chris Elmquist

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