differential pinion shaft的用法和样例：
- Remove the universal joint strap bolts at the pinion shaft yoke.
- Hold the yoke with Wrench 67Remove the pinion shaft nut and washer.
- The pinion shaft runs in porous bronze bearing bushes.
- Seal air is injected into the labyrinth seals located at the main motor shaft (top and bottom) and at the pinion shaft driving the motor.
- A pinion shaft, the rack shaft, and a rack guide holder are assembled in a housing, and an adjust screw is strongly tightened to press the rack guide holder toward the rack shaft under an overload.