Goulds Pumps IC - IOM - Manual (Page 82)

Symptom Cause Remedy
The stuffing box is leaking
excessively.
The packing gland is not adjusted properly
(some models).
Tighten the gland nuts.
The stuffing box is not packed properly. Check the packing and repack the box.
The mechanical seal parts are worn. Replace the worn parts.
The mechanical seal is overheating. Check the lubrication and cooling lines.
The shaft sleeve is scored (some models). Machine or replace the shaft sleeve as necessary.
The motor requires
excessive power.
The discharge head has dropped below the
rated point and is pumping too much liquid.
Install a throttle valve. If this does not help, then
trim the impeller diameter. If this does not help,
then contact your ITT representative.
The liquid is heavier than expected. Check the specific gravity and viscosity.
The stuffing-box packing is too tight. Readjust the packing. If the packing is worn, then
replace the packing.
Rotating parts are rubbing against each other. Check the parts that are wearing for proper
clearances.
The impeller clearance is too tight. Adjust the impeller clearance.
Alignment troubleshooting
Symptom Cause Remedy
Horizontal (side-to-side) alignment cannot
be obtained (angular or parallel).
The driver feet are bolt-bound. Loosen the pump's hold-down bolts, and
slide the pump and driver until you
achieve horizontal alignment.
The baseplate is not leveled properly and
is probably twisted.
1. Determine which corners of the
baseplate are high or low.
2. Remove or add shims at the
appropriate corners.
3. Realign the pump and driver.
Vertical (top-to-bottom) alignment cannot
be obtained (angular or parallel).
The baseplate is not leveled properly and
is probably bowed.
1. Determine if the center of the
baseplate should be raised or lowered.
2. Level screws equally at the center of
the baseplate.
3. Realign the pump and driver.
Assembly troubleshooting
Symptom Cause Remedy
There is excessive shaft end play. The internal clearance of the bearings
exceeds the recommended amount.
Replace the bearings with a bearing of
the correct type.
The snap ring is loose in the bearing-
housing groove.
Re-seat the snap ring.
There is excessive shaft and sleeve runout. The sleeve is worn. Replace the sleeve.
The shaft is bent. Replace the shaft.
There is excessive bearing-frame flange
runout.
The shaft is bent. Replace the shaft.
The flange of the bearing frame is distorted. Replace the bearing-frame flange.
There is excessive frame-adapter runout. There is corrosion on the frame adapter. Replace the frame adapter.
The adapter-to-frame gasket is not seated
properly.
Re-seat the frame adapter and make
sure that the adapter-to-frame gasket
is seated properly.
Troubleshooting
80 Model IC, ICI, ICH, ICIH Installation, Operation, and Maintenance Manual