Powershift 70 series

TRACTORNUTJD · Feb 13, 2021

I picked this up years ago at an old New Holland / case David Brown dealer I've had it under the bench for about 10 years I'm thinking it is the blinkbox for testing and adjusting 70 series case powershift however it doesn't have the sensors that screw in to the transmission and the local dealer has no idea what I'm talking about is this even still a viable tool

Case Nutty 1660 · Feb 13, 2021

Yes a Blinky box,, and yes you need the senders that screw in to the ports on the RPS valve,, mine is up in my shop or I would snap a few pics of them,, unless someone threw away the box and saved them I doubt you will find them unless you buy a whole setup,, they are getting harder to find,,

1370rod · Feb 13, 2021

They were used to adjust the retard screws on the RPS control valve cover. Working at a dealership the Case Service Rep demonstrated to the service guys how to adjust them without using the famous Blinkey Box. So when you ask is it a viable tool, I guess so if you acquire the missing parts. But if you wanted to adjust retards it is easier and quicker to do so without the Blinkey Box. I purchased the one our dealership had nearly 40 years ago, it is like new in the box and works. I have never used it since, but it is a neat and unique conversation piece, Rod.

Case Nutty 1660 · Feb 14, 2021

Lat time I used one at our Dealership was fall 1971, in Jan 72 our shop burned taking the box with it,, I bought one a few years back just to have,, I have no need to use one though, the method you speak of I have been using since 72.

mEl · Feb 14, 2021

CN
I totally agree, as far is I know the dealership where I worked still has the box but it has been largely unused from its purchase, The unit was to sensitive to temperature fluctuations, a PS set up for operating temperature had way to much retard for cold oil conditions here in NC Pa. if set up hot then used at cold temperatures C 3 retard was to slow and a C1-C2-C3 momentary combination till C 3 dropped out would throw you through the windshield. Most of us just set the retards by the sound of engine surge PS 1 to 2 then 2 to one, it take a bit to learn but good shifting was attainable.

Case Nutty 1660 · Feb 14, 2021

Perfectly said mEl, I remember trying to get them to warm up in spring and fall temps to set them those first years so the Blinky Box would tell you correct info, no fun when Dad would not buy a flow tester, I have had one for decades n my shop,, So much easier doing it by sound,, I have set many of them on the customers farm also,, with Them doing the shifting as that also has a big affect on quality of shift is how fast the person moves the lever, I like to set mine up for a fast lever shift, it was more of a custom setting with the owner/operator in the seat

Powershift 70 series

TRACTORNUTJD

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Case Nutty 1660

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1370rod

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Case Nutty 1660

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mEl

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Case Nutty 1660

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