Test Of Solenoid Valve/Pump - Hitachi IJ UX Service Manual

2.4 Test of solenoid valve/pump

●
The operation confirmation of solenoid valve and pump is performed.
①Supply valve
③Recovery valve
⑤Circulation valve (MV5)
⑦Makeup valve
⑨Shutoff valve
⑪Viscometer
⑬Gas/liquid valve (MV12) *1
⑮MAKEUP LOCK
●This test only displays operation status when in operating state.
●The rotating speed of the pump can be changed. (High、Middle、Low)
Mode
Service Carries out operation confirmation of
personnel solenoid valve and pump.
maintenance (Multiple solenoid valves can be operated
mode simultaneously.)
User Carries out operation confirmation of
maintenance solenoid valve and pump.
mode (One solenoid valve at a time is operated.)
1 Press Solenoid valve/pump test on the maintenance menu.
For information on changing to the service personnel maintenance mode,
refer to "2.1 Setting of service personnel maintenance mode."
The solenoid valve /pump test screen is then displayed.
Solenoid v/p test
Open Close
MV1
Open Close
MV3
Open Close
MV5
Open Close
MV7
Open Close
MV9
Ink pressure
2 Press the operation button.
The operation state of the solenoid valve and pump is then displayed.
(Confirm operation by operation sound.)
Open: The solenoid valve is opened. Close: The solenoid valve is closed.
Operation: The pump is operated.
UNLOCKED: It's unlocked.
*) Caution:
The pumps and solenoid valve can be operated simultaneously however, operate them
with care when the solenoid valve are turned on while pump is activated because it is not
a steady operation.
②Replenishment valve (MV2)
(MV1)
④Viscosity valve
(MV3)
⑥Pressure relief valve (MV6)
⑧Cleaning valve
(MV7)
⑩Pump
(MV9)
⑫Exhaust valve
(MV10)
⑭INK LOCK
Operation differs according to state
"Stop" state
[Stop
Visco-
Open Close
MV2
meter
MV11
Open Close
MV4
Open Close MV12
MV6
INK
Open Close
MV8
LOCK
MAKEUP
Oper-
Stop
Pump
LOCK
ated
0.000 (MPa; standard value: 0.250)
2-19
(MV4)
(MV8)
(MV11) *1
*1：UX-E only
Other than "stop" state
Only displays operation state.
Operations such as opening
and closing the solenoid valve
cannot be performed.
]
Com=0 2015.07.07 12:45
Oper-
Stop
ated
Open Close
Pump(Ｈ)
Open Close
Pump(Ｍ)
UN-
LOCK-
LOCK-
Pump(Ｌ)
ED
ED
UN-
LOCK-
LOCK-
ED
ED
Stop : The pump is stopped.
LOCKED: It's locked.
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