④
Insert the mechanical seal stator(large) into the mechanical
seal case and fasten it with the mechanical seal
stationary plate and round screw(3pcs).
⑤
Attach the O ring to the bearing case and assemble the
bearing case and mechanical seal case with bolts(5pcs).
※At this moment, be careful that the sliding
surface of the mechanical seal does not come
in contact with the shaft and other parts.
※Put oil on the sliding surface to avoid seizing.
⑦
Turn the shaft by hand to check whether there is anything wrong with the shaft.
Conduct air tightness tests as necessary.
An air tightness test shows whether the mechanical seal has been assembled properly.
Air tightness test: After attach the one side oil supply plug, leave the mechanical seal for 10 minutes
with a pressure of 0.3 MPa applied to air at room temperature from the threaded hole of the other side plug.
⑧
Pour oil through the oil supply plug and attach the oil supply plug.
※Pour the specified amount of oil. Too much or too little oil may cause early failure.
⑨
COR・・・Attach the O ring to inside of the Boss cover
and fit on the impeller.
Attach the impeller to the shaft.
COM・・・Attach the O ring to inside of Impeller.
Attach the impeller to the shaft.
The impeller is of screw type. Secure the shaft and screw
the impeller squarely into the shaft clockwise.
※ The impeller is a rubber lined product. Be careful not to
damage it. Do no hit it with a hammer.
⑪
Turn the shaft by hand to check whether the impeller comes in contact with the suction cover.
4、Assembling the pump (pump)
①
Attach the O ring to the rotating part(COM type),
assemble to the casing side with bolts(8pcs).
②
Turn the shaft by hand to check whether the impeller
comes in contact with the suction plate.
- 13 -
Boss cover
(COR type)
Impeller
O ring
(COR type)
O ring
(COM type)
Assembly on
the casing side
O
ring
(COM type)
Spring washer
Rotating part
Mechanical seal
Mechanical seal
stetionary plate
Spring washer
Round screw
O ring