ITT Goulds Pumps XHD, Инструкция по установке, эксплуатации и обслуживанию

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Commissioning, Startup, Operation, and Shutdown
XHD Installation, Operation, and Maintenance Manual 41
Precautions
NOTICE:
• Verify the driver settings before you start any pump.
• Excessive warm-up rates can cause equipment damage. Ensure the warm-up rate does
not exceed 1.4°C | 2.5°F per minute.
• 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.
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 93°C | 200°F, then warm up the pump prior
to operation. Circulate a small amount of fluid through the pump until the casing
temperature 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.
After observing the precautions above, the v-belt or coupling guard must be removed to check
driver rotation and set the impeller clearance. Refer to the appropriate guard removal
instructions specific to your unit(s).
Remove the V-belt drive guard
1. Remove the drive guard assembly hardware as appropriate.
2. Remove the hardware that secures the drive guard in place.
3. Disassemble and remove the drive guard assembly.
Figure 25: Belt guard removal
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.