SWING MACHINERY / Raising/Lowering Mechanism (From Machine No. 6 and after) 7. Remove all hoses from the raising/lowering motor (12). Attach a plug on the removed hoses. : 36 mm : 10 mm
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8. Remove the bolt (13) and remove the bracket (14) of the drum speed sensor. : 19 mm CAUTION: Raising/lowering mechanism weight: 1670 kg 9. Attach a wire rope on the raising/lowering mechanism and support the raising/lowering mechanism with the crane.
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10. Remove the nut (15) and remove the bolt (16). : 24 mm
11. Remove the bolt (17) and remove the lock plate (18). After removing the pin (19), lift the raising/lowering mechanism with the crane and remove it.
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CAUTION: Raising/lowering mechanism weight: 1670 kg 1. Attach a wire rope on the raising/lowering mechanism. Lift the raising/lowering mechanism with the crane and align the raising/lowering mechanism with the revolving frame.
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2. Install the raising/lowering mechanism on the revolving frame with the pin (19). Install the lock plate (18) with the bolt (17). : 19 mm : 60 to 64 N m (6.1 to 6.6 kgf m) 3. Adjust the raising/lowering mechanism with using the bolt (16) so that the flange of the drum can be aligned with the pawl of the drum lock and tighten it with the nut (15). : 24 mm : 148 to 160 N m (15.0 to 16.3 kgf m)
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4. Install the bracket (14) of the drum speed sensor on the raising/lowering mechanism with the bolt (13). : 19 mm : 60 to 64 N m (6.1 to 6.6 kgf m) 5. Install all hoses on the raising/lowering motor (12). : 36 mm :175 N m (18.0 kgf m) : 10 mm :90 N m (9.2 kgf m)
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