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

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
"Operation".

4. Consumables

1) Replace the parts when they enter the following-described condition.
Consumable Mechanical
parts seal
Symptoms Oil in the
or mechanical
approximate seal
period for chamber
replacement becomes
cloudy.
Expected One year or
replacement 6000 hours
time of total
operating
hours, either
of shorter
one.
The above-given replacement time is a standard under normal operation.
Parts name
1.5kW
Output
Mechanical
Φ25
seal
Seal washer
Lubricant oil
(Turbine oil)
Oil seal
Φ3×
O-ring
Φ150
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.
Contact rating
Contact type
Contact Cable
) On reusing the pump, follow the instructions of
Sheet Seal washer
packing
At every At every oil
disassembly replacement.
for
inspection.
2.2kW 3.7kW 5.5kW
Φ30
Φ11.8×Φ22(inner dia. × outer dia.) Nominal W12(SUS)
For the quantity of oil, refer to the appearance dimensional drawing.
Φ3×Φ170
Thermal Protection
AC230V, 13A (Max)
AC200V-6mA or DC12V-10nA (Min)
Break Contact
(Normal: on, At temp. rise: OFF)
400V:2 cores YZW, Cab-tyre Cable 1mm
200V:2 cores 2PNCT, Cab-tyre Cable 1.25mm
Lubricant oil O-ring
Lubricant At every
becomes disassembly
cloudy or for
blackish. inspection
Once every
six months.
7.5kW 11kW 15kW
Φ40
VC68x90x7
Φ3×Φ180
2.
Blue Brown, (non-polarity)
2.
White Black,(non-polarity)
- 15 -
５ "Installation" and
Power relay Float switch
Every 20000 Every
cycles of 100000
operation cycles of
operation
18.5kW 22kW
Φ45
VC75x100x7
Φ3×φ220
EBARA
CORPORATION
６
.