A friend brought me a control box for a hydraulic pump that went bad. The dealer wants US$1600 for a new box and I thought I might be able to repair or replace it for less than that.
Amazingly there are only two components inside the box, a DPDT switch and a control connected to a knob that is the speed control for the pump. The control is labeled:
D/C 007 S/N 8043
12V/125HZ CNTRL PWM
I'm assuming that this is (as it says) a 12V 125Hz PWM (pulse-width-modulation) control unit. It has 4 leads.
I've been to http://www.parker.com
but don't find any reference to this part or even one similar to it.
I'm looking for any or all of:
1) A source for this part in the USA.
2) A spec sheet so I can build a work-alike.