EBARA DL - Precautions During Stop-Operation; Consumables; Action When Protective Device Is Activated

EBARA
CORPORATION
.
- 15 -
3. Precautions during stop operation
1) When the pump is left underwater in stop-operating state, measure the insulation resistance of motor
intermittently. If there is no abnormality in the insulation resistance, operate the pump to prevent the
sliding section of the pump from rusting. When the pump is entered restarting, the procedure shall
conform to ６ "Operation".
2) When the pump is stored on ground, clean the pump and then store it at a dry site. (temperature of
storage: -5~40°C) On reusing the pump, follow the instructions of ５ "Installation" and ６
"Operation".
4. Consumables
1) Replace the parts when they enter the following-described condition.
Consumable
parts
Mechanical
seal
Sheet
packing
Seal washer
Lubricant oil
O-ring
Power relay
Float switch
Symptoms
or
approximate
period for
replacement
Oil in the
mechanical
seal
chamber
becomes
cloudy.
At every
disassembly
for
inspection.
At every oil
replacement.
Lubricant
becomes
cloudy or
blackish.
At every
disassembly
for
inspection
Every 20000
cycles of
operation
Every
100000
cycles of
operation
Expected
replacement
time
One year or
6000 hours
of total
operating
hours, either
of shorter
one.
Once every
six months.
The above-given replacement time is a standard under normal operation.
Parts name
Output
1.5kW
2.2kW
3.7kW
5.5kW
7.5kW
11kW
15kW
18.5kW
22kW
Mechanical
seal
Φ25
Φ30
Φ40
Φ45
Seal washer
Φ11.8×Φ22(inner dia. × outer dia.) Nominal W12(SUS)
Lubricant oil
(Turbine oil)
For the quantity of oil, refer to the appearance dimensional drawing.
Oil seal
VC68x90x7
VC75x100x7
O-ring
Φ3×
Φ150
Φ3×Φ170
Φ3×Φ180
Φ3×φ220
For detail of Model, etc. of individual parts, inquiry shall be given to the supplier or EBARA CORP.
5. Action when protective device is activated
1）When thermal protector is activated:
Investigate the cause of the activation, take measures to eliminate the cause, then restart operation.
Thermal Protection
Contact rating
AC230V, 13A (Max)
AC200V-6mA or DC12V-10nA (Min)
Contact type
Break Contact
(Normal: on, At temp. rise: OFF)
Contact Cable
400V:2 cores YZW, Cab-tyre Cable 1mm
2.
Blue Brown, (non-polarity)
200V:2 cores 2PNCT, Cab-tyre Cable 1.25mm
2.
White Black,(non-polarity)