Usage:
572R (2HZ) Pipelayer
Reference: Operation and Maintenance Manual, SEBU7160, 572R Pipelayer; "Hook Load Line - Install"; Page 124.
Description of Change: A new procedure for installing the hook cable is now available. This procedure will help to clarify the proper routing for the hook cable. Proper cable routing is important to ensure proper machine function and prolonged life of the wire rope cable.
Adaptable To: The new hook cable installation procedure is adaptable to all 572R Pipelayers by following the procedure below. This procedure should replace the existing procedure described in the.
Hook Load Line - Install
SMCS Code: 5417-025
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Do not use a wire rope cable that is kinked, frayed or has worn spots. Wear gloves when handling the wire rope cable.
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Use 6 X 25 filler wire, right regular lay, independent wire rope core, pre-formed, improved plow steel-type cables. The wire cables should have a minimal breaking strength of 26672 kg (58800 lb).
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1. Unroll the new hook winch cable from the spool.
NOTE: Weld the ends of the hook winch cable in order to prevent fraying.
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Unroll all of the hook winch cable from the spool. Lay the cable on a flat surface. Never lift the cable off the spool in coils.
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2. Install the cable to the winch drum for the hook load line. Insert the end of the cable downward through the slot in the drum. Form a loop and insert the wedge into the loop in the cable. Pull the cable in order to seat the wedge and the cable in the pocket.
3. Wind one half of the hook winch cable on the drum. Wind the cable evenly across the drum.
4. Install the hook winch cable from the winch drum to fairlead sheave (1).
NOTE: The hook winch cable should go over upper sheave (1) which is toward the front of the machine. Anchor the hook winch cable toward the rear of the machine.
5. Install the hook winch cable over upper sheave (2).
6. Install the hook winch cable under lower sheave (3).
7. Install the cable over upper sheave (4).
8. Install the cable under lower sheave (5).
9. Insert the hook winch cable into the pocket and around wedge (6). Tap wedge (6) and the cable into the pocket with a mallet.
10. Insert the end to the hook winch cable into clamp (7). Tighten the setscrew in the clamp to a torque of 45 ± 7 N·m (33 ± 5 lb ft).
11. Pull the hook winch cable until the line is tight. Lift the lower block above the ground.
12. Raise the boom.