User's Manual

ManualsBrandsGraco ManualsProportionersGraco 313885C ProMix 3KS for Automatic Systems

System Operation

313885C 69

Start Up

1. Go through the Pre-Operation Checklist in Table 11.

2. Turn the AC Power Switch on the EasyKey and on

the Power Supply Module ON (I = ON, 0 = OFF).

➜ Graco logo, software revision, and “Establishing

Communication” will display, followed by Status

screen. See page 19.

➜ At power up the system defaults to Recipe 61,

which is not a valid recipe number. Initiate a

color change to Recipe 0 or a valid recipe num-

ber (1-60).

➜ In bottom left corner, the system status displays,

which can be Standby, Mix, Purge, or an alarm

notification.

3. Verify that the EasyKey is working. The active recipe

number and Standby mode should be displayed.

4. If this is the first time starting up the system, purge it

as instructed in Purging Fluid Supply System,

page 78. The equipment was tested with lightweight

oil, which should be flushed out to avoid contaminat-

ing your material.

5. Make sure that the EasyKey is in Standby (remove

Mix input).

6. Adjust component A, B, and C fluid sup-

plies as needed for your application. Use

lowest pressure possible.

7. Do not exceed the maximum rated work-

ing pressure shown on the system identification

label or the lowest rated component in the system.

8. Open the fluid supply valves to the

system.

9. Adjust the air pressure. Most appli-

cations require about 80 psi (552

kPa, 5.5 bar) air pressure to operate properly. Do

not use less than 75 psi (517 kPa, 5.2 bar).

Table 11: Pre-Operation Checklist

✓ Checklist

System grounded

Verify all grounding connections were made. See

the ProMix 3KS Installation manual.

All connections tight and correct

Verify all electrical, fluid, air, and system connec-

tions are tight and installed according to the

Installation manual.

Fluid supply containers filled

Check component A, B, and C and solvent supply

containers.

Mix manifold valves set

Check that mix manifold valves are set correctly.

Start with the settings recommended in Mix Mani-

fold Valve Settings, page 68, then adjust as

needed.

Fluid supply valves open and pressure set

Component A, B, and C fluid supply pressures

should be equal unless one component is more

viscous and requires a higher pressure setting.

Solenoid pressure set

75-100 psi inlet air supply (0.5-0.7 MPa, 5.2-7 bar)

IG. 70. Power Switches

I = ON

TI12656a TI14372a

FIG. 71. Status Screen

Mix