Goulds Pumps VIC - IOM - Manual (Page 62)

Symptom Cause Remedy
The stuffing box is overheating. The packing is too tight. Release the gland pressure and retighten. Keep
the leakage flowing. If there is no leakage, then
check the packing, sleeve, or shaft.
See Maintenance for details.
The packing is not lubricated. Release the gland pressure and replace any
packing that is burned or damaged. Regrease
the packing as necessary.
The wrong grade of packing was used. Consult an ITT representative.
The stuffing box was improperly packed. Repack the stuffing box.
The packing wears out too fast. The shaft or shaft sleeve is worn or scored. Remachine or replace any parts as necessary.
There is insufficient leakage across the
packing.
Repack the stuffing box and make sure that the
packing is loose enough to allow some leakage.
The stuffing box was improperly packed. Repack the stuffing box properly, making sure
that all old packing is removed and the stuffing
box is clean.
The wrong grade of packing was used. Consult an ITT representative.
The mechanical seal leaks. The seal faces are not flat because the gland
bolts are too tight. This causes the gland
and insert to warp.
Remove the gland bolts and then reinstall them
properly.
The shaft packing has been chipped during
installation.
Replace the packing.
One of these conditions exists:
• The carbon insert is cracked.
• The insert face or seal ring was chipped
during installation.
Remove the mechanical seal, inspect, and
replace as necessary.
The seal faces are scored from foreign
particles between the faces.
Install a strainer, and then filter or cyclone the
separator as required in order to filter out any
foreign particles.
The seal squeals during operation. There is an inadequate amount of liquid at
the seal faces.
A bypass flush line is necessary. If a bypass line
is already in use, then enlarge it in order to
produce more flow.
Carbon dust is accumulating on the
outside of the gland ring.
There is an inadequate amount of liquid at
the seal faces.
Bypass the flush line. If a bypass line is already
in use, then enlarge it to produce more flow.
Liquid film is flashing and evaporating
between the seal faces and leaving residue,
which is grinding away the carbon.
Consult an ITT representative.
The seal leaks but nothing appears
to be wrong.
The seal faces are not flat. Relap or replace the seal faces.
The seal is wearing out too quickly. This product is abrasive. This causes
excessive seal face wear.
Determine the source of the abrasives and
install a bypass flushing in order to prevent
abrasives from accumulating in the seal area.
Install a cyclone separator as necessary.
Abrasives are forming due to the process
liquid cooling and crystallizing or partially
solidifying in the seal area.
Install a bypass flush line in order to hold the
liquid temperature around the seal above the
crystallization point.
The seal is running too hot. Check for possible rubbing of the seal
components. Recirculation or a bypass line
may be necessary.
The wrong kind of seal was used. Consult an ITT representative.
Troubleshooting (Continued)
60 Model VIC Installation, Operation, and Maintenance