B250 3/4 Ton Van V6-239 3.9L (1989)
Steering Gear: Description and Operation
The Constant Control Full Time Power Steering consists of a hydraulic pressure pump, a power steering gear and connecting hoses. The power steering
gear consists of a gear housing, containing a gear shaft and sector shaft, a power piston with gear teeth milled into the side of the piston which is in
constant mesh with the gear shaft sector teeth, and a worm shaft which connects the steering wheel to the power unit piston through a coupling. The
worm shaft is geared to the piston through recirculating ball contact, and the steering valve which is mounted on top of the steering gear directs system
fluid flow.