FrankW
Plastic
- Joined
- Mar 18, 2007
- Location
- Johns Island
Hello,
I have a BB4 mill as shown in this thread:
http://www.practicalmachinist.com/vb/bridgeport-hardinge-mills-lathes/identify-hardinge-mill-186444/
The previous owner replaced the original electric motor with a single phase 3/4 HP 1725 motor and removed the original forward/reverse control lever and high/low speed control lever.
The original motor pulley was damaged and replaced by an off-the-shelf aluminum pulley. This configuration did not allow for changing speeds as the belt lengths were not consistent across the pulley sheaves.
I have repaired the broken flange on the original motor pulley and intend to reinstall the original pulley on the motor.
My questions:
Does anyone have pictures of the original motor location with the pulley installed?
Did the BB4 have a two speed motor or a single speed motor? What were the motor speeds?
Does anyone have pictures of the control linkages that will help me recreate the original forward/reverse lever and the high/low speed lever (if this was available)?
I have several other machines with VFD controls for 3 phase motors, but would like to see the original configuration before I decide how to proceed with the motor and controls for the BB4.
Thanks for the help,
Frank
I have a BB4 mill as shown in this thread:
http://www.practicalmachinist.com/vb/bridgeport-hardinge-mills-lathes/identify-hardinge-mill-186444/
The previous owner replaced the original electric motor with a single phase 3/4 HP 1725 motor and removed the original forward/reverse control lever and high/low speed control lever.
The original motor pulley was damaged and replaced by an off-the-shelf aluminum pulley. This configuration did not allow for changing speeds as the belt lengths were not consistent across the pulley sheaves.
I have repaired the broken flange on the original motor pulley and intend to reinstall the original pulley on the motor.
My questions:
Does anyone have pictures of the original motor location with the pulley installed?
Did the BB4 have a two speed motor or a single speed motor? What were the motor speeds?
Does anyone have pictures of the control linkages that will help me recreate the original forward/reverse lever and the high/low speed lever (if this was available)?
I have several other machines with VFD controls for 3 phase motors, but would like to see the original configuration before I decide how to proceed with the motor and controls for the BB4.
Thanks for the help,
Frank