Series II Cnc

[TPMX]

I have a couple minor questions before I put power to my BP SERIES II CNC.
I purchased the machine this winter and am just now getting the time to work on it.
I had to pull the head off to get it in my shop.
I have it in position with the head all back on and things cleaned up well.
I noticed a wire missing on the z axis stepper motor and wanted to make sure it is suppose to be there.
It is the jumper between terminals 6 & 2 .The manual shows it but its not there now.
I had the stepper unhooked so It may have been lost then but I am not sure,
The next issue is with the BIJUR lube system.
The manual says the system doesn,t function unless the spindle motor is running and to manually operate the plunger to lube the system while jogging
with the spindle off.
The plunger on mine is already up about 2 1/2" and won,t budge.
Am I looking at its operation wrong or has someone maybe broke the plunger?
I am going to get the phase convertor wired up this weekend and would like to fire her up but need to solve these 2 issues first.
The previous owner said they had trouble with the x & y axis.
They say the 2 axis would feed but would not rapid.
Z axis was suppose to be fine.
Curious as to what the problem is.
Thanks to all for the help getting the head off and back on.
This will be a learning experienc for me,I have been a machinist/CNC operator
For 20 years but never worked on 1.
I converted a Smithy 3-1 to cnc and ballscrews but that was pretty easy with gecko,s and steppers.
Getting this old baby to run again maybe alot more of a challenge.

[LUCKY13]

I cant help you with your Z axis, or really much else.

I have never used a pump like this but you should be able to check with some simple steps. Break the fittings loose from some of the lube line & see if the pump will pump/move. If it will there is probably some nozles that are stoped up/pluged that you could replace. Even the lines could be clogged from crude. It makes sense that things should be moving too get the oil to come out easier & go to where it is needed. But unless there is some kinda safty feacter that keeps it from working it should be able to pump some anyway. You do see alot of people that have the nozzles needing to be replaced. But if they are stoped up loosening the lines at the pump will tell you if the pump is locked up or not because it will release the hydrolic pressure that may be holding the pump back. And if the pump will work with the lines loose you know to look into the nozzles/lines for blockage.


Like I said I have not used one of these pumps before, so use some sense & dont try to force it just incase there is some safty latch or some thing else that is holding it back.


Jess

[gus]

the pump is not broken. That is the way they work. it is a gearmotor that turns a cam. When the cam turns past the high spot, 'thump' the pump squirts. It has just stopped at the high spot. Usually there is a little space above the reach of the cam, so you can squirt a little at a time.

[machintek]

Rapid on these is not fast.
The motor on the way oiler only runs when the spindle is on.

George

[TPMX]

I wired up my phase convertor today and find I have more problems then the previous owner told.
As soon as I turn on the rear power switch my spindle starts and runs in reverse with the only way of stopping it is press the E-STOP.
On the user panel as soon as power is on the panel RUN-GOTO-and HOLD
lights all come on,after about 20 seconds or so they all go out and the ABS light comes on plus the N-F-S-T and X lights come on and stay on ,the readout leds all display zero's.
Nothing will move all that works is the spindle increase- decrease works fine.
Any ideas would be appreciated.Am going to start studying the manuals.
THANKS

[machintek]

You should have to get the machine out of limits to do anything by pressing the red illuminated button in the left top corner of the operator panel. You can start there.
Maybe the spindle switch is miswired, or a relay resulting in this condition.
Time to get some composure and start tracing wires.

George

[JIMMYZ]

I am guessing that the z axis will make bad noises and might even move. Just wire it like the other 2 phases on the motor.

J

[TPMX]

Thanks for the help George,I did try pressing the button even though it is not iluminated.
I see by reading the manual it is in a limits condition and that these lights will be lit.
I will keep studing the manual and try to make some headway.
Is there anything else that needs done other than powering up the system?
I have tryed flipping the reset toggle inside the panel ,the readouts reset when this is done but nothing else functions.
I wish I had run one of these before just to see what is normal when power is applied and what is done initially to get the machine functional.

Just a different system than anything else I have ran.
THANKS AGAIN!

[wyobmf]

I have some original prints that were with my 1983 Boss 6 SII.
They are pretty good for tracing wiring if this would be helpfull.
Does the contactor pull in when you turn power on? or did someone direct wire the T leads to power? Also if you change from low to high speed the direction also changes.

[TPMX]

I also have all the prints and it would be impossible to get things going without them.
I did find someone had jumped out the spindle start switch and thats why it would come on as soon as power was turned on.
I now have that wired to the print and can start the spindle forward or reverse with the switch,direction changes depending where the hi/lo switch is at.
There still is a problem with wires on CR5.
My spindle will still restart after pressing then resseting the E-stop.
By the way I am reading the drawing you should have to press the LIMIT
lighted push button to pull CR5 back in but I don,t have too.
This is were I see someone jumped wire 214 and 211 together and i think this is the problem.
i am no electrician so I have to watch what I am doing.
My lube pump isn,t running with the spindle on either so I need to figure that out also.
It will take me some time but I am learning.
It will be another ball of wax to get the axis moving once I get past this mess.

[wyobmf]

It is hard to see the Bijur pumps working they only make a rev once every 15 min. I thought mine was broke also. If you pull the plunger up does the pressure gauge read any pressure?
Thanks

[machintek]

If the lube pump actually is NOT running, then I believe there are switches on the side of the contactors that turn the pump on, they also tell the control that the spindle is turning so the control can do a feedrate, and lastly they turn the lube pump on. Maybe by relay CR2. CR5 is used for the AUX group. In some machines, it is for flood coolant, in others it is the brake option.
CR1 is the one that turns the drives on and off.

George