Hitachi EX20UR-2 Manual page 275

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W562-02-03-007
4. Loosen screws (1) (3 used) to remove cover (2).
Turn cap (3) to the stop to release air pressure
from the hydraulic oil tank. Remove cap (3).
Stop the engine. Operate each lever several times
to release residual pressure from the hydraulic cir-
cuits.
.1 4111111B
Remove Arm Cylinder
1. Select a firm, level surface to park the machine.
Fully extend the bucket and arm cylinders, and low-
er the front attachment to the ground.
W554-04-02-007
2. Insert a wooden block between arm cylinder (3)
and stay (4). Remove bolt (1) and pin (2).
olmiC,: 19 mm
W562-04-02-001
3. Retract the arm cylinder and connect it to a crane
with a lifting belt. Remove bolt (1) and pin (2).
or.C,: 17 mm
W562.04-02-002
FRONT ATTACHMENT / Cylinder
W04-02-05