(3) Run the pump for 2 - 3 hours under normal load condition and check the temperature and vibration of
each parts.
(4) During operation, pay attention to indication of Ampere Meter. If any abnormality found, stop the pump
immediately and check the cause. Often, the cause is interference between Screw or between the
periphery of Screw and the inner surface of casing. All pumps we supplied are passed break in operation.
However, full care will be still necessary after the pump is disassembled and reassembled at site.
* Caution during Operation *
(1)
Insure incoming gas temperature does not exceed 110F or pump seizing can occur
(2)
Do not operate the pump
continuously
above 130mmHg (Torr) or over heating can occur
(3)
Check temperature of bearing & lubricant and indication of Ampere Meter & cooling water
regularly.
(4)
Keep operation within designated specifications.
2.6 Stopping
(1) Shut off suction side main V/V.
(2) If any corrosive gas has been inhaled, introduce the atmosphere from suction side for 20-30 minutes
before stopping to clean inside of pump.
(3) Stop the pump by turning off the motor.
(4) Shut off cooling water.
If freezing is anticipated, discharge water by opening of Drain Valves
.
2.7 Lubrication
Lubricants to be used must be good and high-grade petroleum products containing oxidation inhibitor, rust
preventive, extreme-pressure additive, etc. (Do not use any lubricant which contains any element of water,
sulfate resin or tar.)
Turbine oil (ISO 46) readily obtainable in the market will generally satisfy these requirements.
The following brands are recommended for use as lubricants for gear and bearing.
·
Lubricant : Shell, Turbo T 46
Regal, R & O 46
BP, Energol THHT 46 / THB46
Mobil, DTE oil medium or, equivalent.
- Special application : Fomblin, 25/6
·
Grease : Mobil 1
Exmo 101
G 40M (SHINETSU)
JFE 552 (KLUBER)
Arcanol L74V (FAG)
- Special application : RT-15 (Fomblin)
Barrierta L55/2 (KLUBER)
