Graco Inc. EM390 User Manual download pdf (Page 13)

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WHEN TO FLUSH

NOTE: The Pressure Relief Procedure Warning is on

page

16.

NEVER leave water or water–base paint in the

sprayer if there is the slightest change it could

freeze.

Flush out the water or water–base paint

with

mineral

spirits. If water freezes in the pressure con

trol tube, it prevents the sprayer from being

started,

and causes serious damage to the pressure

control.

CAUTION

1. New Sprayer. The sprayer was factory tested in

lightweight oil, which was left in to protect the pump

parts.

Before

using water-base paint

flush with

mineral

spirits,

followed by a soapy water flush, and

then

clean water flush.

Before using oil-base paint,

flush with mineral

spirits,

only

2. Changing Colors. Flush with a compatible solvent

such

as mineral spirits or water

3. Changing from water-base to oil-base paint.

Flush with warm, soapy water

, then mineral spirits.

4. Changing from oil-base to water-base paint.

Flush with mineral spirits, followed by warm, soapy

water,

and then a clean water flush.

5. Storage.

Water-base paint:

Flush with water, and then

mineral spirits. Leave the pump, hose and gun

filled

with mineral spirits. Shut of

f the sprayer and

open

the pressure drain valve to relieve pressure.

Oil-base

paint:

Flush with mineral spirits. Shut of

and

unplug the sprayer

, open the pressure drain

valve

to relieve pressure.

Startup after storage.

Before

using water-base paint

flush

out the min

eral

spirits with soapy water

, and then with clean

water.

When

using oil-based paint

flush out the mineral

spirits

with the paint to be sprayed.

NOTE:

HOW T

O FLUSH is on page 14.

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Graco Inc. EM390 User Manual Page 13

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