Maeda MK0003, Руководство по обслуживанию, Страница: 221 / 348

2-193
[ADJUSTING WIRE ROPE]
CAUTION
When adjusting each wire rope, be careful of overtension of the wire ropes.
A boom extending wire rope and retracting wire rope (2 pieces each) are used in this machine.
Adjustment of these 2 wire ropes must conform to the specified procedure. Be sure to use the following procedure for
wire rope adjustment.
1. With the booms retracted in a horizontal position, extend the telescoping booms by approx. 2 m.
2. Retract the booms completely and at a slow speed.
Measure clearance (a) in this condition to check the following for
proper adjustment.
• If there is 5 mm or more clearance (a) found, adjust the No. 3 boom
retracting wire rope (1).
• If clearance (a) is “0 (zero)”, adjust the extending wire rope (6)
according to step 4 “Adjustment of No. 3 boom extending wire rope
(2)”.
3. Adjustment of No. 3 boom retracting wire rope (1)
(1) With the lock nut (3) loose, tighten the right and left adjusting nut (4)
evenly in a direction where the retracting wire rope (1) becomes
tight until clearance (a) is closed.
(2) If clearance (a) is 5 mm or more after performing operation and
measurement in steps 1 and 2, readjustment is required.
4. Adjustment of No. 3 boom extending wire rope (2)
(1) With the lock nut (5) loose, tighten the right and left adjusting nut (6)
evenly in a direction where the No. 3 boom extending wire rope (2)
becomes tight until just before the No. 3 boom begins to extend.
(2) Retighten both the right and left adjusting nuts (4) of the No. 3
boom retracting wire rope (1).
(3) Secure the adjusting nut (4) and (6) of the No. 3 boom retracting
and extending wire rope (1) and (2) with the respective lock nut (3)
and (5).