Electric Pump (Optional) - Hitachi EX 3600-6 Operator's Manual

ELECTRIC PUMP (Optional)

This machine is equipped with an electric pump to draw
hydraulic oil from the suction and return pipe lines to the
hydraulic oil tank. The pump is driven by battery power.
Continuously operate it while servicing the machine.
How to Operate Electric Pump
WARNING: Hydraulic oil may be hot just after
operation. Be sure to wait for oil to cool before
starting work.
1. Stop the engines.
NOTE: Refer to page 7-3 for stopping the engines
properly.
2. Release pressure of the hydraulic oil tank.
WARNING: Keep body and face away from cap
(1). Turn cap (1) slowly and remove the cap only
after releasing the internal pressure completely.
(1) Insert the wrench as shown and turn the wrench
clockwise and hold the wrench.
(2) Turn cap (1) counter-clockwise about 30°, at which
point stop cap (1) to release the air.
(3) Turn cap (1) further and remove cap (1).
(4) Align the projected part of cap (1) with the
projected part of the case and install cap (1).
3. Connect suction hose (3) of electric pump (2) to quick
coupler (4).
Quick Couplers are located in;
•
Suction Line: Suction Manifold under Pump Unit
•
Return Line: Return Line beside Control Valve
4. Before drawing oil, open stop valve (5).
MAINTENANCE
7-8
2
A
4
View A
Wrench 4 mm
4
5
1
M18M-07-004
3
M18M-07-005
Cap (1)
Allow (b)
Projection
Case Assembly
Projection
Side Hole
M110-07-022
M18M-07-006
Suction Line
M18M-07-007