NOTICE:
•
Verify the driver settings before you start any pump. Refer to the applicable drive equip-
ment IOMs and operating procedures.
•
Excessive warm-up rates can cause equipment damage. Ensure the warm-up rate does
not exceed 1.4°C | 2.5°F per minute.
•
The maximum allowable temperature change for an abnormal transient event such as
thermal shock is 79°C | 175°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.
•
If temperatures of the pumped fluid will exceed 121°C | 250°F, then warm up the pump
prior 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 at
1 GPM (or 0.0025 the pump rated flow) into the pump drain and out the discharge nozzle
(optionally, the casing vent can be included in warm-up circuit but not required). The rec-
ommended warm up rate is 2°C to 3°C | 3°F to 5°F per minute. During the warm up proc-
ess confirm the temperature differential between the top and bottom of the pump is less
than 17°C | 30°F. Soak for (2) hours at process fluid temperature.
NOTICE:
For pumps with austenitic or duplex stainless steel casing construction, the temperatures stat-
ed above must be halved. E.g. for D-1 construction the recommended warm up rate is 1°C to
2°C | 1.5°F to 2.5°F per minute.
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.
2.
Slide the driver half of the coupling guard toward the pump.
3.
Remove the nut, bolt, and washers from the driver half of the coupling guard.
4.
Remove the driver-side end plate.
5.
Remove the driver half of the coupling guard:
a) Slightly spread the bottom apart.
b) Lift upwards.
6.
Remove the remaining nut, bolt, and washers from the pump half of the coupling guard.
It is not necessary to remove the end plate from the pump side of the bearing housing. You can
access the bearing-housing tap bolts without removing this end plate if maintenance of internal
pump parts is necessary.
7.
Remove the pump half of the coupling guard:
5.2 Remove the coupling guard
3610 i-FRAME API 610 11th Ed/ISO 13709 2nd Ed, API Type BB1 Single-Stage, Axially-Split, Between-Bearing IOM
39
Summary of Contents for 3610 i-FRAME
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