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Wedge-type proof-loading machine (single ram)
REPLACING PACKINGS - 14001_133

Aviation Boatswains Mate E 3 & 2 - Aviation theories and other practices
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1. Wedge set 2. Safety lock pin 3. Lid 4. Retracting cables 5. Tension gauge 6. Hydraulic pump 7. Ram 8. Pin 9. Selector valve 10. Crosshead 11. Crosshead stop 12. Rail support 13. Rail 14. Crosshead terminal 15. Clevis socket 16. Strongback 17. Cable terminal 18. Base plate 19. Cable 20. Choker valve 21. External load release valve Figure 3-62.—Wedge-type proof-loading machine (dual ram). 7. Screw the clevis socket on the cable terminal. 8. Place the cable between the wedges and connect the clevis socket to the crosshead terminal with the pin. 9. Manually move the crosshead into the rams, making certain that the adapter attached to each end of the ram engages its respective guide hole in the face of the crosshead. 10. Release the wedges, close the lid, and insert the safety lock pin. 11. Using chalk, masking tape, or some other means, mark the cable a measured distance from the wedge set. This procedure provides a means for checking cable slippage while the system is being pressurized. 12. Visually inspect the socket tester to make certain that all components are securely attached. CAUTION Do not open the choker valve during operation of the hand pump, as this will ‘result in excessive pressurization of the 3-62







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