Goulds Pumps XHD - IOM - Manual (Page 114)

Troubleshooting
Alignment troubleshooting
Symptom Cause Remedy
Horizontal (side-to-side) alignment cannot The driver feet are bolt-bound. Loosen the pump's hold-down bolts, and
be obtained (angular or parallel). slide the pump and driver until you
achieve horizontal alignment.
The baseplate is not leveled properly and 1. Determine which corners of the base-
is probably twisted.
plate are high or low.
2. Remove or add shims at the appropri-
ate corners.
3. Realign the pump and driver.
Vertical (top-to-bottom) alignment cannot The baseplate is not leveled properly and 1. Determine if the center of the base-
be obtained (angular or parallel). is probably bowed.
plate should be raised or lowered.
2. Level screws equally at the center of
the baseplate.
3. Realign the pump and driver.
Assembly troubleshooting
Table 9: Troubleshooting procedure
Symptom Cause Remedy
There is excessive shaft end play. The internal clearance of the bearings is Replace the bearings with a bearing
excessive. of the correct type.
The thrust-bearing end cover is loose. Tighten the screws.
There are too many shims under the thrust Remove the individual shims to ob-
bearing end cover. tain the proper thickness.
The runout for the shaft is excessive. The shaft is bent. Replace the shaft.
The runout for the bearing-frame flange is The shaft is bent. Replace the shaft.
excessive.
The flange of the bearing frame is distorted. Replace the bearing-frame flange.
The runout for the seal-chamber cover is The seal-chamber cover is improperly seat- Replace or re-machine the seal-
excessive. ed on the frame. chamber cover.
There is corrosion or wear on the seal- Replace the seal-chamber cover.
chamber cover.
The runout for the impeller wear ring is The shaft is bent. Replace the shaft.
excessive. (not applicable on 3700LF)
The wear ring was machined improperly. Replace or re-machine the impeller.
i-ALERT™ Condition Monitor troubleshooting
Symptom Cause Remedy
There are no green or red flashing LEDs. The battery is dead. Replace the condition monitor.
The unit is deactivated. Activate the condition monitor.
The unit is malfunctioning. Consult your ITT representative
for a warranty replacement.
The red LEDs are flashing, but the temperature and The baseline is bad. Check the temperature and vi-
vibration are at acceptable levels. bration levels and reset the con-
dition monitor.
The unit is malfunctioning. Consult your ITT representative
for a warranty replacement.
112 XHD Installation, Operation, and Maintenance Manual