1. Rudder pintle to be fitted with nut.

2. Inspection alignment of stock, rudder blade and pintle.

3. Inspection machining dimension of rudder pintle.

4. Results show that pintle could change the nozzle throat area and thus the motor pressure and thrust,() which provided the capability for thrust control.

5. Trailer includes 3in pintle eye, jack stand, quick couplers, and 15,000 lb capacity draw bar.

6. Rudder pintle to be forged steel and fitted with steel sleeve and a synthetic bush bearing.

7. A new test method concerning hydro-elastic problems as pintle load determination and hoisting load fluctuation is suggested.

8. In the flow divider pintle of variable radial piston pump, the pressure compensator is added in the hydrostatical balance system, then it makes the system to have pressure control feedback.

9. Mr. Superintend, the hole of the lower rudder pintle damaged. It needs to be bored.

10. Analysis and calculation to structure of new small size P-type pintle injection nozzle was introduced.

11. Through analyzing on the changing course of 2100BL electric shovel central pintle, the improvement scheme of central pintle is proposed and demonstrated on the aspects of structure and mechanical.