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).
