•
Electrical connections must be made by certified electricians in compliance with all
international, national, state, and local rules.
•
Refer to driver/coupling/gear manufacturer's installation and operation manuals
(IOM) for specific instructions and recommendations.
•
Risk of seizure, breach of containment, or explosion. Ensure balance line is installed and
piped back to either the pump suction or suction vessel. This prevents rapid vaporization
of the pumped fluid.
Precautions
CAUTION:
When a cartridge mechanical seal is used, ensure that the set screws in the seal locking ring
are tightened and that the centering clips have been removed prior to startup. This prevents
seal or shaft sleeve damage by ensuring that the seal is properly installed and centered on the
sleeve.
NOTICE:
•
Verify the driver settings before you start any pump. Refer to the applicable drive equip-
ment IOMs and operating procedures.
•
Make sure that the temperature change does not exceed 19°C | 35°F per minute.
•
The maximum allowable temperature change for an abnormal transient event such as
thermal shock is 121°C | 250°F.
•
The mechanical seal used in an Ex-classified environment must be properly
certified.
NOTICE:
You must follow these precautions before you start the pump:
•
Flush and clean the system thoroughly to remove dirt or debris in the pipe system in order
to prevent premature failure at initial startup.
•
Bring variable-speed drivers to the rated speed as quickly as possible.
•
Run a new or rebuilt pump at a speed that provides enough flow to flush and cool the
close-running surfaces of the stuffing-box bushing.
•
If temperatures of the pumped fluid will exceed 93°C | 200°F, then warm up the pump pri-
or to operation. Circulate a small amount of fluid through the pump until the casing tem-
perature is within 38°C | 100°F of the fluid temperature. Accomplish this by flowing fluid
from pump inlet to discharge drain (optionally, the casing vent can be included in warm-up
circuit but not required). Soak for (2) hours at process fluid temperature.
At initial startup, do not adjust the variable-speed drivers or check for speed governor or over-speed trip
settings while the variable-speed driver is coupled to the pump. If the settings have not been verified,
then uncouple the unit and refer to instructions supplied by the driver manufacturer.
5.2 Remove the coupling guard
1.
Remove the nut, bolt, and washers from the slotted hole in the center of the coupling guard.
5.2 Remove the coupling guard
38
Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual
Summary of Contents for Goulds Pumps 3700
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