Goulds Pumps 3700 - IOM - Manual (Page 105)

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.
Assembly troubleshooting
Table 11: 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.
Model 3700, API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Installation, Operation, and Maintenance 103
Manual