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Check the Bijur and air

Encoder went south ... replace it

Phoenix contact in DigiKey

About ten years ago GM changed it's formula for it's Dex-Cool and it began dissolving gaskets ... so of course the had to change it again (after Big Buck repairs)
Unless told otherwise use what they...

I bought this almost new VFD and was going to make a "ton of money" selling conversions for Monarch Lathes ... Then got sick (surgery) and it's been sitting for a year.
This unit is completely wired...

My pleasure ... You will grow to like that machine ... If you have the latest Z conversion you may be amazed at what you can do with that machine. I saw one machine do a 3 " circle cut using X-Y...

Sounds like something got loosened .. maybe during shipping. You have a standard 486 computer , the only thing different is the BMDC card. More then SVGA plug is loose. Get a standard...

That's childs-play after you have changed the brake on that puppy

Sounds like you have the "wiper" on the wrong terminal or the pot has opened

You got me there. I have repaired many R2E3 + 4's and cannot remember ever seeing one without a power drawbar. The reason being that you can't reach the drawbar without a ladder .... so every-time...

It's probably a Kurt drawbar unit. The unit operates by first plunging the air motor into the Hex part of the drawbar, then after it's bottomed out the manifold valve turns the drawbar motor on to...

It has been a long time since I worked on an E4 but ..... If you remove the power drawbar actuator (4 screws on the C face) then you can screw the drawbar all the way out ...

Use the coolant pump from a wall outlet ... put either an inline switch on the cord or go "Star Wars" with a X-10 remote (about $20 bucks for tiny Transmitter and receiver rated at 15 amps)
It's...

Earth to Gus .... Ballscrews are what make the table move. The Ball-nut is stationary. If you try to turn the ballnut you need a very big wrench with a long pipe on the handle .. caution don't...

Probably was used in an assembly process .... I see slots that more than likely once held limit switches

Was that comment necessary? This is a forum for assistance ... not hindsight

I got 2 of these from a customer that went out of business . The first one went into a Monarch lathe .. the customer only had to connect feed and 10 control wires ( Pwr-on-off ,,,fwd,rev ,,, speed...

What area would the person cover? Where do they need to live ( West Coast-East Coast) ?

I have loads of BPT software but it's on 3.5 floppy's ... If I can find someone with a 3.5 drive I'll send you the latest after I get it on a USB

Geez ... been a while since I worked on an R2E3 ,,, my first thought is to power-off then get a good rubber or leather strap wrench and try to turn the ball-screw. You obviously have multiple alarms...

I would suggest that before you slap another board in ... that you find out what fried the original. Using boards as if they were fuses can get $$$$ fast

I'm assuming you have a desktop ... maybe your keyboard is failing

It may help Try hitting Esc as it's loading ... if you can get a Blue screen it will tell you what's going on
Just for the heck of it swap memory slots

Sounds like you may have an Encoder either going bad or something loose. Indicate the table to spindle backlash and repeatability .... I bet that will tell the story.
Two other remote...

It's waiting for something to load ... like a program or USB ... it could be as simple as a connection. Do the F8 ,,tap,tap,tap at startup .. then do safe mode. Go to Administrative tools/event...

Sorry ... I thought that you were talking about the old FL relay ... my confusion. However , you will see that I made a reference to solid state F.L. detection and when you said my "relay" works...

Are we talking about the standard Monarch MG set-up or an updated control ??

Protective devices like yours dude are the same as parachutes
You have no idea if they work until you need them

Your only playing with your toys sonny ... unlike many people here that make a...

The biggest change in my lifetime was the introduction of "Rare earth" magnets for fields ... this allowed PM motors to be as large a 5 HP (or larger) without a wound field. It's also the reason...

Ha, ha ... I would like to have a dollar every time one of those failed. In the late 60's to the late 70's I was a Reliance field tech. It was a great time to be working in that industry because...