[ADJUSTMENT OF BOOM TELESCOPING WIRE ROPE]
CAUTION The wire ropes must be adjusted to the correct tightness.
A boom extending wire rope (1 piece) and retracting wire rope (1 piece) are used in this machine. Adjustment of these wire ropes must conform to the specified procedure. Use the following procedure for wire rope adjustment. 1. With the booms retracted in a horizontal position, extend the telescoping booms approx. 2m.
2. Retract the booms completely. Slow boom retraction is required. Measure clearance (a) to check the following for proper adjustment. • If 5mm or more clearance (a) is formed, adjust the retracting wire rope (6). See step 3 “Adjustment of boom retracting wire rope (1)”. • If no clearance (a) is formed, adjust the extending wire rope (1). See step 4 “Adjustment of boom extending wire rope (1)”. 3. Adjustment of boom retracting wire rope (6) (1) Remove the 3 mounting bolts (5) and remove the boom top cover (4).
(2) With the lock nut (7) loose, turn the adjusting nut (8) in the direction that the retracting wire rope (6) becomes tight (clockwise) to provide laterally even tightening until clearance (a) is bridged. (3) If the retracting wire rope remains sagging or 5mm or more clearance remains present after performing steps 1 and 2, readjustment is required.
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