Manual Do Usuário Graco Sistema De Aquecimento Marinho 309524N [15/30 Páginas]

Graco sistema de aquecimento marinho 309524N

Operation

309524N 15

Setting Heater Control

(Refer to FIG. 11)

1. Set the heater control knob (33) to a trial setpoint of

4 or 5.

2. Start the pump and circulate fluid through the sys-

tem at very low pressure, about 10-12 oz/min

(0.30-0.35 liter/min).

3. After 10 minutes, read the temperature on the ther-

mometer (2). If it does not match the desired tem-

perature, adjust the setpoint.

Adjusting for Spraying

1. Adjust pump pressure and heater setpoint to the

lowest settings needed for good fluid atomization.

2. Set all system back pressure valves (S - F

IG. 1) to

maintain even fluid pressure at all gun stations.

IG. 11: Setting Heater Control

05549-524

CAUTION

Operating the heater at its highest setting, over 180°F

(82°C), for long periods of time decreases the heater

life and can cause fluid to dry out; which can clog the

heater and result in a poor finish.