PIM-00004
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1
[Operation Manual]
12/61
DAIKIN INDUSTRIES, LTD.
Piping
This hydraulic unit is equipped with one return port (submerged in the oil), one drain port (above the oil
surface), and one discharge port, in addition to the return filter. Connect pipes with these ports as required.
Each piping port has been covered with tapered cap (vinyl cap) before shipment.]
In this hydraulic unit, the motor pump unit is equipped with vibration suppressing rubber to prevent vibration
of the motor pump unit from being conveyed to the whole unit. For this purpose, the discharge pipe provides a
large degree of freedom. Therefore, when connecting the discharge pipe, be careful that the discharge pipe will
not touch the cover even if the pipe shakes with reaction force of the hose.
The piping to the unit should be connected with a hose, so that vibration of the motor pump unit will not be
conveyed to the machine.
Note) The return filter provides two ports. One port is covered with a plug (Rc3/4), and another port is
covered with a taper plug (vinyl cap) (Rc1).
Note) For details of the pipe positions, refer to the model drawing on a separate sheet.
Note) Tighten each pipe connection by winding seal tape.
<Unit top view (When the full cover is removed)>
CAUTION
This hydraulic unit incorporates a check valve. If an additional inline check valve is mounted to the
discharge port, resonance occurs, which may have bad influence on the master machine. Therefore, do
not use an inline check valve.
Return filter
Controller
Oil filling port
(Air breather)
Operation panel
Return port
(Rc1)
Discharge port
(Rc3/4)
Drain port
(Rc3/4)
Return port
(Rc1-1/2)
Return port
(Rc1-1/4)
Option port
(Rc1/2)
Option port
(Rc3/8)
