Operation

I.Pressure Relief Procedure

The system remains pressurized until pressure is manually relieved. To reduce the risk of serious injury from pressurized fluid, accidental spray from the gun, or splashing of any fluid, follow this proce- dure whenever you

Are instructed to relieve pressure

Stop spraying

Check or service any system equipment

Install, clean, or change spray nozzles

1 . Be sure the pump air regulator (6a) is still open. Close the master air valve (A) to relieve pump air . pressure.

2 . Close both air regulators (6a,6b).

3 . Turn the 3-way valve (9) to Drain.

4 . Trigger the spray gun into a waste pail to relieve fluid pressure.

5 . Turn off and unplug the heater (3).

II.Flush the Pump Before First Use

Flush with a solvent compatible to your fluid. Consult the fluid manufacturer’s literature for recommenda- tions. See Flushing on page IO.

III.Priming the System

See Fig. 7.

1.Put the suction tube (15) in the prepared fluid.

KEY

ABleed-type master air valve

C

A i r l i n e

3

fluid

heater

6 a

Pump

air regulator

6 b

Gun air regulator

93-way valve

1 3 Drain hose

44’ Fluid regulator

48 Filter drain valve

2 . Hook the drain hose (13) on the waste pail.

3 . Close the filter drain valve (48).

4 . Turn the 3-way valve (9) to Drain.

5 . Open the fluid pressure regulator (44) (fully clockwise).

6 . Turn the needle valve (5) ail the way out (counterclockwise)

7 . Close the gun and pump air regulators (6a,6b) (full counterclockwise).

8 . Connect the air line (C) to the pump.

9 . Open the master air valves (A).

10.Slowly raise the pump air regulator (6a) pressure to 20 to 30 psi (1.4 to 2.1 bar). The pump will cycle quickly until is it primed. When it is primed, the pump will stall against pressure. Now set the pump air pressure to 40 psi (2.8 bar). When fluid flows from the drain hose, turn the 3-way valve to Circu- late.

11.Hold the gun against and aimed into a grounded metal waste pail. Trigger the gun, and slowly open the fluid regulator (44). The gun will emit air until the fluid arrives. When fluid flows freely, release

the gun trigger.

.

04015

Fig. 7

a308-448

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Image 9
Haier 237410 manual Operation, Pressure Relief Procedure, II. Flush the Pump Before First Use, III. Priming the System