#318

Hi All,

I have one little problem with my 847.the MEM/VFO CH rotary seems dirty.... i.e. it jumps around in frequency sometimes when I turn it.

Would it be safe to start spraying switch cleaner at it?

TIA

Rob G4UJS

#319

开云体育

Mechanical encoders get dirty just like Pots do. ?There is no problem with using a good quality cleaner that is intended for the purposes.? I would pick one that has some lubricating quality to it.? That will minimize the contact wear.? Caig Laboratories makes great products.? I use various concentrations of their Deoxit cleaner depending on what needs to be cleaned and how dirty it is.? I also use GC Electronics DE-OX-ID, which does a good job and is much less expensive than the Caig cleaners. ?I have been using both types for years with great results.? Just remember to use them sparingly.? You can always add more if needed.? Spray a little and work the encoder to see where you are.? It may take a little time and a couple of small squirts to get the results you want.

?

Show quoted text

From: [email protected] [mailto:[email protected]] On Behalf Of Rob
Sent: Tuesday, January 04, 2022 2:18 PM
To: [email protected]
Subject: [YaesuFT847] Dodgy Rotary switch

?

Hi All,

I have one little problem with my 847.the MEM/VFO CH rotary seems dirty.... i.e. it jumps around in frequency sometimes when I turn it.

Would it be safe to start spraying switch cleaner at it?

TIA

Rob G4UJS

#320

Howdo Rob.?
Spraying cleaner at it will do absolutely nothing. It is a crimped together unit, and no chance of getting any spray on to the contacts.
I have new ones in stock, but usually clean the old ones. This involves the front off, knobs off, encoder out and put back together. I have done quite a few.?
Regards old chap
Andy~
G4XNG

Virus-free.

Show quoted text

On Tue, 4 Jan 2022 at 20:09, Omni <selcor@...> wrote:

Mechanical encoders get dirty just like Pots do.? There is no problem with using a good quality cleaner that is intended for the purposes.? I would pick one that has some lubricating quality to it.? That will minimize the contact wear.? Caig Laboratories makes great products.? I use various concentrations of their Deoxit cleaner depending on what needs to be cleaned and how dirty it is.? I also use GC Electronics DE-OX-ID, which does a good job and is much less expensive than the Caig cleaners.? I have been using both types for years with great results.? Just remember to use them sparingly.? You can always add more if needed.? Spray a little and work the encoder to see where you are.? It may take a little time and a couple of small squirts to get the results you want.
?
From: [email protected] [mailto:[email protected]] On Behalf Of Rob
Sent: Tuesday, January 04, 2022 2:18 PM
To: [email protected]
Subject: [YaesuFT847] Dodgy Rotary switch
?
Hi All,

I have one little problem with my 847.the MEM/VFO CH rotary seems dirty.... i.e. it jumps around in frequency sometimes when I turn it.

Would it be safe to start spraying switch cleaner at it?

TIA

Rob G4UJS