Graco Inc. Glascraft GC-1387J User Manual download pdf (Page 14)

14 GC-1387H

To relieve uid 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.

4. Verify the Trigger lock is engaged.

Daily Maintenance

It is recommended that the following service be per-

formed on a daily basis.

1. Remove gear cover, p/n: 23756-00, 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.

2. Maintain a reasonable stock level of “wear” items

such as Packings, Seals and O-Rings

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

thoroughly.

4. Never leave dispense gun immersed in any liquid.

Pressure Relief Procedure

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Graco Inc. Glascraft GC-1387J User Manual Page 14