•
Check the pump capacity.
•
Check the pump pressure.
•
Check the pump power.
•
Inspect all plugs and seals in the power end.
If the pump performance does not satisfy your process requirements, and the process requirements
have not changed, then perform these steps:
1.
Disassemble the pump.
2.
Inspect it.
3.
Replace worn parts.
6.2 Bearing maintenance
These bearing lubrication sections list different temperatures of the pumped fluid. If the pump
is ATEX-certified and the temperature of the pumped fluid exceeds the permitted temperature values,
then consult your ITT representative.
Bearing lubrication schedule
Type of bearing
First lubrication
Lubrication intervals
Oil-lubricated bearings
Add oil before you install and start the
pump. Change the oil after 200 hours
for new bearings.
After the first 200 hours, change the
oil every 2000 operating hours or ev-
ery three months.
6.3 Mechanical-seal maintenance
WARNING:
The mechanical seal used in an Ex-classified environment must be properly certified.
CAUTION:
Running a mechanical seal dry, even for a few seconds, can cause seal failure and physical
injury. Never operate the pump without liquid supplied to the mechanical seal.
Cartridge-type mechanical seals
Cartridge-type mechanical seals are commonly used. Cartridge seals are preset by the seal manufactur-
er and require no field settings. Cartridge seals installed by the user require disengagement of the hold-
ing clips prior to operation, allowing the seal to slide into place. If the seal has been installed in the pump
by ITT, these clips have already been disengaged.
Other mechanical seal types
For other types of mechanical seals, refer to the instructions provided by the seal manufacturer for instal-
lation and setting.
Before you start the pump
Check the seal and all flush piping.
6.2 Bearing maintenance
64
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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