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Testing the Terminal
REPLACING PACKINGS - 14310_128

Aviation Boatswains Mate E - Aviation theories and other practices
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contained hand-operated unit designed specifically for proof loading poured terminals on both deck cables and purchase cables. Cable Terminal Proof-loading Machine The   cable   terminal   proof-loading   machine   is capable   of   providing   a   test   load   that   substantially exceeds the test load required for testing the reliability of terminals used by ABEs. The test load is read on the tension  gauge,  which  is  calibrated  in  pounds,  and  is positioned in the line leading from the pump to the ram (see figs. 3-62 and 3-63). The  machine  operating  procedure  is  as  follows (refer to fig. 3-63). 1. Thoroughly clean the portion of cable (19) that will be in contact with the wedge set (1) during the test. Do NOT use solvent for this cleaning operation. 2. Relieve all pressure in the hydraulic system by cracking  open  the  external  load-release  valve (21)  to  slowly  release  the  proof-load  on  the gauge.  Slowly  releasing  the  gauge  load  will prevent rapid snapback, with resultant possible breakage of the gauge pointer. 3. Manually move the crosshead away from rams and install the crosshead terminal. 4. Remove  the  safety  lock  pin  and  slide  the  lid toward the cylinders to open. 5. Install  the  wedge  set,  Lucker  Manufacturing Company  Part  No.  3130-143  (for  testing  1 7/16-inch-diameter   purchase   cable).   Do   not lubricate  the  cable  gripping  surface  or  the  lid sliding surface. 6. Retract the wedges by pulling on the retracting cables.  Lubricate  the  wedge  sliding  surfaces with PRELUB-6 before each test. 3-57 1 2 3 4 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ABEf0363 1. WEDGE SET 2. SAFETY LOCK PIN 3. GRIP ASSEMBLY LID 4. RETRACTING CABLES 5. TENSION GAUGE 6. HAND HYDRAULIC PUMP 7. HOSE ASSEMBLY 8. RAM (CYLINDER) 9. CONNECTING PIN 10. CLEVIS SOCKET 11. LOCK RING 12. CABLE TERMINAL 13. TENSION ROD 14. PURCHASE CABLE 15. NEEDLE VALVE 16. EXTERNAL LOAD RELEASE VALVE Figure 3-63.—Wedge-type proof-loading machine (dual ram).







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