[GreenKeys] 7470 oil

[Robert Jarratt]

Are we talking about the rubber hammers for the 33 now? I am keen to get
hold of some of these.

 

Regards

 

Rob

 

From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Teletypeparts
Sent: 18 April 2014 20:42
To: davetumey at yahoo.com; greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] 7470 oil

 

Dave,

 

I have the new hammers.  They arrived two days late.  I will get to testing
them soon and get back to you.  

 

Thanks,

 

Wayne





-----Original Message-----
From: David Tumey <davetumey at yahoo.com>
To: Teletypeparts <teletypeparts at aol.com>
Sent: Fri, Apr 18, 2014 3:35 pm
Subject: Re: [GreenKeys] 7470 oil

Wayne,

 

Did you get those hammer caps OK, they show they were delivered?

 

Are they better than the softer versions?

 

--dave

From: Teletypeparts <teletypeparts at aol.com>
To: jhhaynes at earthlink.net 
Cc: greenkeys at mailman.qth.net 
Sent: Friday, April 18, 2014 3:32 PM
Subject: Re: [GreenKeys] 7470 oil

 

Jim,

 

I dont recall what we used for oil exactly.  Seems like it was in the metal
pint cans.  I was able to get a can in the 1980's from Telemechanics.  I
worked at WU from 1968 to 1974 if that helps.  I do know that some oils
leave the varnish coating when the oil dries out.  

 

Again, the biggest issue today with machines that have sat for years is
congealed grease and dried oil on codebars and other sliding parts.  Its the
first thing to look for when restoring a machine that has not run in 5 or 10
years.  

 

73,

 

Wayne

KB1FDW





-----Original Message-----
From: Jim Haynes <jhhaynes at earthlink.net>
To: Teletypeparts <teletypeparts at aol.com>
Cc: greenkeys <greenkeys at mailman.qth.net>
Sent: Fri, Apr 18, 2014 3:24 pm
Subject: Re: [GreenKeys] 7470 oil

On Fri, 18 Apr 2014, Teletypeparts wrote:
> 28's have so many felts that when I worked at WU I had a squirt can to oil
> them with.  Used a drip spout oiler for 32 and 33's. 
>  
When you worked at WU were you using KS-7470 oil or something else?
Granted that you were there fairly late in the history, and they may have
used something else earlier.
 
The reason I am asking is that I have had some 2B printers that I had to
take the selector apart and remove a green varnish-like substance from
the separator plates.  The green color suggests it was some chemical
reacting with the nickel plating on the parts.  So I've been wondering
if the official lubricant had that reaction, or if WU was using some other
lubricant and that was the cause of the varnish.
 
Back in the 1950s the RTTY magazines frequently warned us to use 
non-detergent oil on our machines, saying detergent oil would turn all
the springs green.  I don't know if this was based on actual experience
or someone's imagination.  In a pinch I've used detergent oil on a machine
fairly recently and did not have anything turn green - but then detergents
may have changed a lot in the intervening years.

 

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