Graco Inc GC-1402E, GC-1402F Pressure Relief Procedure, Daily Maintenance

Pressure Relief Procedure

4. Verify the trigger lock is engaged.

To relieve fluid and air pressures:

1.Push down Yellow slide valve, P/N 21402-00 to bleed off air to system.

2.Open P/N 21228-00 on catalyst pump to recirculation position.

3. Open P/N 21192-00 on bottom of material pump.

Daily Maintenance

It is recommended that the following service be per- formed on a daily basis.

1. Remove gear cover, p/n: 23798-00, and inspect valves to see if there is any leakage, on the top or bottom side of the valves. if there is leakage, with pressure relieved, tighten packing nut, p/n: 23764-00 1/8 to 1/4 turn until leak stops. Verify that there is no leakage.

4. Maintain a reasonable stock level of “wear” items such as Packings, Seals and O-Rings

5. If dispense gun is leak tested, be sure to dry gun thoroughly.

6. Never leave dispense gun immersed in any liquid.

12 GC-1402E