Other mechanical seal types
For other types of mechanical seals, refer to the instructions provided by the seal manufacturer for instal-
lation and setting.
Reference drawing
The manufacturer supplies a reference drawing with the data package. Keep this drawing for future use
when you perform maintenance and seal adjustments. The seal drawing specifies the required flush fluid
and attachment points.
Before you start the pump
Check the seal and all flush piping.
Mechanical seal life
The life of a mechanical seal depends on the cleanliness of the pumped fluid. Due to the diversity of op-
erating conditions, it is not possible to give definite indications as to the life of a mechanical seal.
6.5.2 Packed stuffing-box maintenance
WARNING:
•
Packed stuffing boxes are not allowed in an ATEX-classified environment.
•
Failure to disconnect and lock out driver power may result in serious physical injury. Nev-
er attempt to replace the packing until the driver is properly locked out.
Accepted leakage rate
It is not necessary to shut down or disassemble the pump to inspect the packing operation. During nor-
mal operation the packing should leak approximately 30-100 drops per minute.
Adjustment of gland
Adjust the gland if the leakage rate is greater than or less than the specified rate.
Evenly adjust each of the two gland bolts with a one-quarter (1/4) turn until the desired leakage rate is
obtained. Tighten the bolts to decrease the rate. Loosen the bolts to increase the rate.
Tightening of packing
NOTICE:
Never over-tighten packing to the point where less than one drop per second is observed.
Over-tightening can cause excessive wear and power consumption during operation.
If you cannot tighten the packing to obtain less than the specified leakage rate, then replace the packing.
6.5 Shaft seal maintenance
Model ICO i-FRAME, ICOH i-FRAME Installation, Operation, and Maintenance Manual
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