172-65169MA-08 (MC-COS Multi-control Valve) 28 May 2010
26
Disassembling the Separator and Main Valve Sections
Turn the MC-COS upside down for easy dismantling of the separator and main valve.
Loosen the bolts and remove the trap body. Be careful, as the separator may drop off
when the MC-COS is returned to the normal attitude.
Removal of the separator and pressed-in sleeve permits removal of the main valve
spring, the main valve, the main valve holder and the separator screen. Remove the
main valve seat from the main body with a box wrench.
Check for damage on the seating and sliding surfaces of the main valve and main
valve holder, the seating surface of the main valve seat and the gaskets, and for
clogging of the separator screen.
[At startup following shutdown for a long period, always blow down the piston section
of the main body through the plug (if optional plug is supplied).]
Separator Screen
Main Body
Trap Body
Trap Body
Gasket
Bolt
Sleeve
Separator
A: Main Valve Seat (with gasket)
B: Main Valve
C: Main Valve Holder
D: Main Valve Spring
E: Bolt
Corrugated
Spring Washer
Plug (option)
A
B
C
D
Main Valve
Section
(15 – 50 mm
(
1
/
2
– 2 in))
A
B
C
D
E
Main Valve
Section
(65 – 100 mm
(2
1
/
2
– 4 in))
