You should thoroughly flush and drain the 6017 unit if you need to take it out of service for a long time, or if you expect it to become exposed to freezing temperatures. Sterling, Inc. recommends SterlFlush™ flushing fluid or equivalent for flushing your 6017 unit; follow unit flushing instructions that comes with SterlFlush™ flushing fluid.
Drain plugs are provided at the base of the heater tank, reservoir tank, and on the pump. You should also remove, drain, and reinstall the heat exchanger tube bundle before storage.
6-4 Corrective Maintenance
Pumps and Seals
Each 6017 unit is completely tested and calibrated before leaving the factory. The unit is then cooled, drained, and packed for shipment.
If the unit stands idle for a long time before being installed in your factory, gaskets can dry out and possibly leak when you start the unit. In most cases, these gaskets soon swell and form a tight seal. If not, you may need to tighten the bolts to stop the leak.
Similarly, rough handling in shipping may sometimes cause minor leaks upon startup; you may need to
You should expect to periodically adjust the packing or replace the pump seal. If the pump is properly lubricated and used at moderate temperatures, the seal should last several years. The following section describes the proper procedures for replacing the seal Periodic replacement of the pump drive
Note: If the pump motor wiring is disconnected for removal from the unit, you must check the actual direction of rotation when the motor is rewired to the unit.
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