UPPERSTRUCTURE / Counterweight REMOVE AND INSTALL COUNTERWEIGHT Removal CAUTION: Counterweight weight: 9150 kg (20200 lb) 1. Attach a lifting tool, wire rope and chain block to the lifting hole on counterweight in order to hold. Adjust the wire rope length by using the chain block and make the counterweight horizontal. CAUTION: Do not stay under the lifted counterweight. 2. Remove bolts (13), spring washers (14) and washers (11) (11 used for each). Remove covers (11, 12) from the main frame. W1J1-02-02-001 CAUTION: When using a power wrench, do not injure hands by the reaction bar. 3. Loosen bolt (10) by using a power wrench.
Remove bolts (10) (2 used), washers (9) (2 used), nuts (7) (2 used), shim (6) and washers (8) (2 used). : 65 mm NOTE: Shim (6) is installed in the clearance between nut (7) and the bracket. 4. Remove bolts (1) (4 used), lock washers (2) (2 used), plates (3) (2 used) and shims (4, 5) from the counterweight. : 36 mm 5. Hoist and remove the counterweight from the main frame. W1J1-02-02-002 8 1 7 3 9 1, 2 W1J1-02-02-003 4, 5 W2-2-1 1 2 3 4 5 6 7 8 1 2 3 4 5 7 9 8 10 12 15 11 14 13 15 14 W1J 1 2 3 4 5 6 7 8 5 7 9 8 1 12 15 14 13 15 1 0 1 2 3 1 2 3 4 5 7 8