Hitachi ZAXIS 470LC-5B Operator's Manual page 16

Hydraulic excavator counterweight removal
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21. Slowly move the counterweight removal/install
operation lever UP until counterweight bottom bosses
(26) move away from machine's main frame (25) by
approximately 2 to 5 mm (0.1 to 0.2 in.) (B). This will
ensure the weight of the counterweight is supported by
the lift cylinder.
d
CAUTION: If the threads of bolts (11) disengage from
nuts (12), nuts (12) and nut spacer drop to the ground.
Keep people away from under the machine when
removing bolts (11).
22. To avoid binding, loosen bolts (11) alternately by turning
each bolt for one turn at a time.
23. Remove bolts (23), lock plates (24), shims (28) and
spacers (27) from each counterweight boss (26). To avoid
binding, alternately loosen left and right side bolts (23)
by turning them for 2 or 3 turns at a time.
Remove bolts (11) from nuts (12). Remove bolts (11) from
the counterweight.
COUNTERWEIGHT REMOVAL
8
B
11
12
M1J3-NACW1-013
28
M1J3-NACW1-012
25
26
27
23
24

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Zaxis 670lc-5bZaxis 870lc-5b

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