Graco 3A0732J Operation, Pressure Relief Procedure, Trigger Lock, Prime the Pump

Models: 3A0732J

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Operation

Operation

Pressure Relief Procedure

Trapped air can cause the pump to cycle unexpect- edly, which could result in serious injury from skin injection, splashing or moving parts.

1.Lock the gun trigger.

2.See FIG. 2. Turn off the bleed-type master air valve

(D).

3.Unlock the gun trigger.

4.Hold a metal part of the gun firmly to a grounded metal waste container. Trigger the gun to relieve fluid pressure.

5.Lock the gun trigger.

6.If you suspect that pressure has not been fully relieved after following the steps above, check the following:

a.The spray tip may be completely clogged. Very slowly loosen the air cap retaining ring to relieve pressure in the cavity between the ball/seat shutoff and the plugged tip. Clear the tip orifice.

b.The gun fluid filter or the fluid hose may be com- pletely clogged. Very slowly loosen the hose end coupling at the gun and relieve pressure gradually. Then loosen completely to clear the obstruction.

c.After following the steps above, if the spray tip or hose still seems completely clogged, very slowly loosen the tip guard retaining nut or hose end coupling and relieve pressure gradually, then loosen completely. With tip removed, trig- ger gun into waste container.

Trigger Lock

See FIG. 3. Always engage gun trigger lock when you stop spraying to prevent gun from being triggered acci- dentally by hand or if dropped or bumped.

Gun Trigger

Locked

tiI6581A

Gun Trigger

Unlocked

ti6582A

FIG. 3. Trigger Lock

Prime the Pump

Have safety spring (9) in place during operation to reduce risk of pinching or loss of fingers.

1.See FIG. 3. Lock gun trigger. Remove tip guard and spray tip from gun. Refer to gun manual.

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3A0732J

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Graco 3A0732J important safety instructions Operation, Pressure Relief Procedure, Trigger Lock, Prime the Pump