Pressure Relief Procedure; Shutdown - Graco Pneumatic PD44 Instructions Manual

Meter, mix and dispense valve for precise two-component micro-dispensing of sealants and adhesives

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Pressure Relief

Procedure

1. Retract the metering rods.

2. Close both the A side and B side fluid shut-off

valves.

3. Remove static mixer.

4. Dispense 5 shots. Shots should be at least 75% of

the full stroke.

5. Extend the metering rods into the tubes. If Graco

controls are provided with the system, see the PD44

Controls manual. See Related Manuals on page 2.

6. Close the incoming air shut-off/bleed valve that sup-

plies air to the metering valve.

7. Close the incoming air shut-off/bleed valve that sup-

plies the A feed system. Repeat for the B side feed

system. Refer to feed system manual for pressure

relief procedure. See Related Manuals on page 2.

313904D

1. Perform Pressure Relief Procedure.

2. Inspect the metering rods for material buildup.

Clean as necessary.

3. Lubricate the spool valve ports with compatible

lubricant such as mesamoll or silicone oil.

4. Install storage cap on outlet nose.

Pressure Relief Procedure

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