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Procedures
WARNING:
• After the parking brake is manually released, the
machine brake system will be completely disabled.
• Be sure to wedge wheel stoppers to prevent the
machine from moving.
• Before restarting to operate the machine, consult
your nearest Hitachi dealer to have the parking
brake adjusted.
ZW220, ZW250
1. Turn to remove parking brake cap (1).
2. Remove lock nut (2). Turn adjuster screw (3) clockwise
with a wrench until brake disc (4) becomes free to rotate.
3. Install lock nut (2). Tightly install parking brake cap (1) by
hand.
ZW310
1. Remove plug (7) from the bracket (6).
2. While preventing oil from spilling with a workshop towel,
disconnect the A-side of hose (4) from elbow (5). Put plug
(3) on the A-side end of hose (4) to stop oil leak.
3. Remove elbow (5) and bushing (6).
4. Remove releasing bolt/nut (11).
5. Insert bolt/flat washer (3) (excluding the nut) into plug
hole (1). Tighten the bolt into the inside bolt hole.
6. When bolt (11) head touches the brake cover, tighten
bolt (11) further approx. two turns (approx. 2 to 3 mm) to
release the parking brake.
TRANSPORTING
10
9
11
6
7
6-8
1
ZW220, 250
4
5
A
ZW310
M4GB-06-004
1
3
2
M4GB-06-005
M4GB-06-006
B
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