| 60 / | HD | POWER PLANTS |
| 325 | DF | PRESSURE FLUID SOURCE AND MOTOR {47} |
| 477 | DF | .~ Ram driven by fluid pumped from reservoir {4} |
| 481 | DF | .~.~ Having fluid trapping means with a manual release or by-pass holding ram {1} |
| 482 | | .~.~.~ Release valve and pump actuated by a common handle |