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3) Once a year
Replace mechanical seal at an interval of one year or 6000 hours of total operating hours, either
shorter one. By the replacement, the pump life extends.
4) Once every two to five years
Overhaul of the pump assures safe and long period of operation. For the case of high frequency of
operations, early overhaul is requested.
5) Check that there is no leakage from the joint of pump and piping. When there is leakage, tighten the
connecting bolts.
6) In order to avoid the fire accident by the contact failure caused by the slack of wiring, check whether
motor connections and panel connections are not loosened.
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. When motor protection is activated.
Check causes that motor protection is activated. After removing the causes, start the operation again.
5. Consumables
1) Replace the parts when they enter the following-described condition.
Consumable
Mechanical
parts
seal
Symptoms
Oil
in
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
Mechanical seal < mm >
Seal washer (W12 SUS) < mm >
Lubrication oil < ｍＬ >
(Turbine oil ISO VG32)
O-ring
< mm >
For detail of Model, etc. of individual parts, inquiry shall be given to the supplier or EBARA CORP.
) On reusing the pump, follow the instructions of
Sheet
Seal washer
packing
the
At
every
At every oil
disassembly
replacement.
for
inspection.
OUTPUT
2.2kW
3.7kW
Φ30
Φ22×Φ11.8×1.2( Outer diameter × Inner diameter × thickness)
DML
1100
DMLV
1100
φ170×φ3.1
Lubricant oil
O-ring
Lubricant
At
every
becomes
disassembly
cloudy
or
for
blackish.
inspection
Once every
six months.
5.5kW
7.5kW
Φ40
1600
1780
φ180×φ3.1
EBARA
- 13 -
５ "Installation" and
Bearing
Every
6000
hours
11kW
15kW
22kW
Φ45
2900
3000
3380
3550
φ220×φ3.1
Corporation
６
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