The pullout plate should have the coolant pump, hydraulic pump, air compressor and a 1/3hp motor all mounted together.
The headstock has two co-axial lever switches, one for forward/reverse and the other pole switches for fast and low speed ranges. They can be operated seperately, or together, irrespective of whether the motor is running or stationary. I think the switches were proprietary, as Britan list silver replacement contacts in the manual. The the direction control switch needs to be break before make. This may be of some help:

Andrew