BP S1 Boss4 questions

[markhas]

I am a relative newbie. I have a BP series 1 ridgid ram using the Hill Billy board and Mach 3. The control works well. I have a few mill related problems that I would like some help with
1) There is significant (.020) play in the ways on my table (along the Y axis) under heavy cutting load. Is it common for these to need to be tightened?
2) I have pnuematic spindle lock on my machine. It works, but it is always "ON". I have the bridgeport manuals and I looked at the pneumatic diagram, but I can't tell how the solenoid valve gets energized. Can someone let me know where the power comes from for the air solenoid? Is it wired through the E stop?
3) I have mechanical speed control, and it does not seem to change the speed at all. Also, when I put it into "high" speed, there is very little power coming out of the spindle (too tool stalls easily). Is this a worn belt or other issue?

Thanks much!

Mark

[machintek]

I have to find a schematic but if you have one, it may be wrong. Some machines had a manual brake. Some had the electric brake. On a modified machine, all bets are off.

George

[HillBilly]

This shows the brake option.

If you had to rewire your machine transformers from 480 to 220 volts, the spindle has to be reconnected for 220 also.

Darek

[markhas]

George and Darek,
Thanks for your replies. Here are a couple of pix. From the schematic, it looks like that there should be a brake switch. I don't have one, so I am guessing that I don't have a factory pneumatic brake. I traced the air lines back to the transformer cabinet, so I'll have to start there.
Good catch on the motor, I don't think I ever rewired it for 220/3ph. Thanks!

Mark