Hitachi EX20UR-2 Manual page 34

3. Disconnect all hoses from the pump device.
7•../4: 27 mm
—03
NOTE: Attach identification tags to the disconnected
hoses to ease reinstallation.
1. Loosen screws (2) to remove cover (1).
-•• •1111101
VV561-02-03-001
2. Loosen cap (1) on the hydraulic oil tank. After
bleeding the air from the hydraulic oil tank, retight-
en cap (1).
VV551-02-01-002
VV551-02-01.003
UPPERSTRUCTURE / Pump
Device
REMOVE AND INSTALL PUMP DEVICE
Remove Pump Device (EX2OUR-2)
A
CAUTION:
1. Escaping hydraulic fluid under pressure can penetrate the skin or eyes, causing serious in-
jury. Avoid this hazard by relieving pressure before disconnecting hydraulic or other lines.
2. Hydraulic oil and components may be hot just after operation. Hot hydraulic oil may spout,
possibly causing severe burns. Be sure to wait for hydraulic oil and component to cool be-
fore starting work.
W02-03-01