the pump is disassembled and reassembled at site.
◐
Caution during Operation
1. Check temperature of bearing & lubricant and indication of Ampere Meter & cooling water.
2. Keep operation within designated specifications.
2.5 Stopping
(1) Shut off main valve on suction side.
(2) If any corrosive gas has been inhaled, introduce the atmosphere air to 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, drain water from pump by opening Drain Valves.
2.6 Lubrication
Lubricants to be used must be good quality 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 VG68) readily obtainable in the market will generally satisfy these requirements.
The following brands are recommended for use as lubricants for gear and bearing.
●
Lubricant:
BP, Energol THHT 68
BP, Energol THB 68
Petro-Canada, R & O 68
Shell, Turbo 68
Mobil, Gear 626
or, equivalent.
●
Grease :
G 40M (SHIN ETSU)
JFE 552 (NOK-KLUBER)
3. MAINTENANCE AND INSPECTION
3.1 General
(1) During operation, the temperature will rise corresponding to the compression ratio due to
compression heat. However, if the temperature rise is local and the outside coating scorched, it
is abnormal. It may be because of the improper cooling water supply or cooling water cut-off,
interference of Screw with casing or the pump has sucked in some foreign material. Therefore,
stop the operation immediately to check the condition.
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