Mokon Duratherm, Инструкция по эксплуатации

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Seal Replacement/Maintenance
Warning: Make certain that the system is disconnected from the power
source in compliance with all local and national codes before attempting
to service or remove any components. Never run the pump when dry.
Maintenance:
Inspection: Pump should be periodically checked for proper operation. If the system has changed
or if the pump is operating noisily or erratically, then the pump should be removed and examined.
It should be repaired and parts replaced as necessary.
Cleaning: Remove oil, dust, dirt, water, chemicals from exterior of pump and motor. Blow out
interior of open motors with clean compressed air at low pressure. Regularly drain moisture from
TEFC motors.
Draining: If the pump is located in an area subject to freezing temperatures, the pump must be
drained when not in operation or add sufficient antifreeze.
Seal Replacement:
Disassembly:
Should the mechanical seal, which consists of seal seat (Ref 5a) and seal head (Ref 5b), require
replacement, proceed as follows and refer to Figure 1.
Important: Always replace both the seal seat and seal head to insure proper mating of
component! Also, the impeller seal should be replaced anytime the impeller lock nut (Ref
9) has been removed.
 Remove five bolts (Ref 13) connecting the casing (Ref 11) to the adaptor (Ref 4)
 Remove the casing.
Caution: Care should be taken not to “pinch” or “shave” the O-ring gasket (Ref 10)
between the adaptor and the casing.
 Use a box and/or socket wrench to remove the impeller nut (Ref 9). Remove the impeller
seal (Ref 8) and the impeller (Ref 7).
Important: Care should be taken to insure that the same number of shim washers (Ref
6) are placed behind the impeller as was removed. The shim washers are located directly
behind the impeller and become loose as the impeller is removed.
 The seal head (Ref 5a) can now be pulled from the shaft.
 Pry the seal seat (Ref 5b) from the adaptor (Ref 4).