Re: HP 8640B stiff main tuning
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Roy is right.
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In many greases, one of the major heavy components is soap. Look at what happens when soap residue hardens. But, be careful; not all soaps dissolve in water. Meths can sometimes help. 73 de Brian, VK2GCE -----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Roy J. Tellason, Sr. Sent: Monday, 23 May 2022 1:06 AM To: [email protected] Subject: Re: [HP-Agilent-Keysight-equipment] HP 8640B stiff main tuning On Saturday 21 May 2022 07:14:21 am mondial wrote: Other shafts and bearings in the instrument show the same symptoms ofstuck bearings. The original grease seems to become like glue with age. The issue here is the same thing that causes fans to not work well when they age. The original lubricant is made up of a number of different fractions, and over long periods of time the lighter ones evaporate, leaving the heavier ones behind. The solution is to remove what's left of the original lube and put some new lube in there. -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin |
Brian