Graco Merkur series, Instructions-Parts List Manual

Page: 14 / 30

Operation
14 332245G
Spray
1. Prime. See Prime, page 12.
2. Follow Pressure Relief Procedure, page 10.
3. Install tip and tip guard on gun.
4. Open bleed type master air valve (C).
5. Turn regulator adjustment knob (E) until gauge (D)
reads desired pressure. Turn clockwise to increase
pressure, counterclockwise to decrease pressure.
6. Disengage gun trigger lock.
7. Spray a test pattern. Adjust pressure as necessary.
Read fluid manufacturer’s recommendations.
8. Flush when done spraying. See Flush, page 11.
9. Follow Pressure Relief Procedure, page 10.
Shutdown
Follow Pressure Relief Procedure, page 10.
Always flush the pump before the fluid dries on the dis-
placement rod. See Flush on page 11.
NOTICE
Do not allow pump to run dry. It will quickly accelerate
to a high speed causing damage.
C
ti21110a
E
D
ti21111a
TI5048a