Repair; Remove Hardened Material From Internal Mix Front Head - Graco RS Operation And Repair Manual

Repair

Repair

Remove Hardened Material from Internal Mix Front Head

F . 13
IG
Perform this procedure when the internal mix diffuser
assembly is filled with cured material. When this hap-
pens, the diffuser assembly must be drilled out.
1. Perform Pressure Relief Procedure, page 20.
2. Loosen then remove retaining ring (810) and air cap
assembly (808) from head (801).
3. Remove diffuser assembly (803).
4. Use two wrenches on flats of diffuser and cap (806)
to remove cap.
5. Use punch to break the check valve (812) and valve
seat (816) loose from the hardened material. Dis-
card the valve seat and spring (813).
6. Use punch to break hardened material loose from
the diffuser cap (806).
32
802
801
804
* Parts shown are not
available on internal
mix, high flow front
803
805
816*
806*
812*
813*
810
808
3A0232ZAA