Graco Dispensit 1230 Instructions Manual page 13

Valve Disassembly (Cont'd)
6.5 Wet Head Section
To disassemble the Wet Head Section follow these steps. It is necessary to remove the air line from the
diaphragm barb fitting. Refer to figure 8 for part orientation.
1. Pull the Metering Rod (14) from the top of the Wet Head Section (14).
2. Remove the Internal Snap Ring (15) from the top of the Wet Head.
3. With a small dull dental pick, remove and keep the Washer (16) and remove and discard the High
Pressure Seal (17) from the top of the Wet Head Section.
4. Remove the Internal Snap Ring (15) which holds the Diaphragm in the Wet Head Section. This snap
ring is under pressure. Use Caution when removing.
5. Remove the Diaphragm Insert (20) by pulling it out and then remove and discard the "O" Ring (21) and
the Diaphragm (22).
Figure 8. Wet Head Components. The Wet Head section of the 1230 dispense valve has a small number of
components which makes maintenance easy.
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