For you B-port fans

Discussion on all milling machines vertical & horizontal, including but not limited to Bridgeports, Hardinge, South Bend, Clausing, Van Norman, including imports.

Moderators: Harold_V, GlennW

User avatar
NP317
Posts: 1867
Joined: Tue Jun 24, 2014 2:57 pm
Location: Northern Oregon

Re: For you B-port fans

Post by NP317 » Wed Sep 11, 2019 10:37 am

That sounds like normal operation: Rotate either direction to brake.
Same on my newer milling machine.
RN

John Evans
Posts: 2013
Joined: Tue Jan 20, 2009 9:33 pm
Location: Phoenix ,AZ

Re: For you B-port fans

Post by John Evans » Wed Sep 11, 2019 12:35 pm

Rotate the handle either way that should apply the brake. With brake applied to keep the brake applied then you pull the handle towards you to keep the brake engaged, handy when changing heavy tooling like a boring head or tightening the draw bar. personally I never found the need to lock the spindle, I just hold the brake on till I get the draw bar loosened or tightened.
www.chaski.com

earlgo
Posts: 1434
Joined: Sat Jan 29, 2011 11:38 am
Location: NE Ohio

Re: For you B-port fans

Post by earlgo » Wed Sep 11, 2019 12:48 pm

Rotating the handle and then pulling to lock was my intuitive solution when the issue came up. We tried that and the brake disengaged.
This begs the question, why is there a cam-lock feature on the handle if it releases the brake?
As mentioned, the owner is waiting for the operation manual. Hopefully it will explain what the use is, and even better, how to fix it if it fails.
--earlgo
Before you do anything, you must do something else first. - Washington's principle.

John Evans
Posts: 2013
Joined: Tue Jan 20, 2009 9:33 pm
Location: Phoenix ,AZ

Re: For you B-port fans

Post by John Evans » Wed Sep 11, 2019 3:04 pm

I would say worn parts somewhere in that area. If a step pulley head pretty easy to get into that area,vari speeds a little harder. Like I said if the brake it's self works OK I wouldn't worry too much about it.
www.chaski.com

Harold_V
Posts: 17658
Joined: Fri Dec 20, 2002 11:02 pm
Location: Onalaska, WA USA

Re: For you B-port fans

Post by Harold_V » Wed Sep 11, 2019 3:46 pm

I have one of the 2 horse heads on my BP, which was provided with the machine when purchased. The handle on mine rotates in either direction, which applies the brake. Pulling on the handle locks it in the chosen position, so the spindle can be locked (handle pulled), or free (handle relaxed). Pulling out does nothing more than lock the handle in the given position.

H
Wise people talk because they have something to say. Fools talk because they have to say something.

earlgo
Posts: 1434
Joined: Sat Jan 29, 2011 11:38 am
Location: NE Ohio

Re: For you B-port fans

Post by earlgo » Tue Sep 17, 2019 10:52 am

The Bport owner got the manual for the series 1 machine and it says clearly in it that there is no adjustment for the brake in the J head. One has to disassemble the drive unit to replace the bands. It doesn't mention anything about previous proctology experience, but it appears that it might be useful. :lol:
--earlgo
Before you do anything, you must do something else first. - Washington's principle.

Post Reply