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Products => Test Equipment => Topic started by: instronumber1 on January 01, 2024, 03:49:32 am

Title: Fluke 789 top cover replacement - cant work out how to remove rotary switch
Post by: instronumber1 on January 01, 2024, 03:49:32 am

Hello to all and hapy new year,

I'm in the process of replacing the top cover on my Fluke 789 process meter, I'm having a bit of trouble trying to work out how to remove the rotary switch assembly.

I cant see anything obvious, and I'm reluctant to force it apart due to how expensive the parts are.

I'm hoping that someone here has done this before and can provide me with some insight.

I've attached a photo of my meter internals for reference.

Thanks in advance for your time.

Title: Re: Fluke 789 top cover replacement - cant work out how to remove rotary switch
Post by: coromonadalix on January 01, 2024, 04:16:19 am

you should push the white hexagonal figure, its a shaft who insert in the rotating dial / contacts   be careful not to loose them and deform them

see

https://www.sistest.com.br/loja/?product=fluke-187-189-87-iv-89-iv-knob-botao-externo (https://www.sistest.com.br/loja/?product=fluke-187-189-87-iv-89-iv-knob-botao-externo)


not sur if the size is the same as 1/4   hex stud drill bit  ??    or better use some allen key ??

Title: Re: Fluke 789 top cover replacement - cant work out how to remove rotary switch
Post by: instronumber1 on January 01, 2024, 04:24:23 am

Thank you very much for the information, I shall try that and report back