Sherwin-Williams 820-001 Owner's Manual download pdf (Page 11)

820-007

Setup

10.

Prime the sprayer

Close the drain valve (19). Don’t install the

spray tip yet! See Fig. 1

Put the suction tube into the paint container

c. T

urn the pressure adjusting knob (B) all the

way counterclockwise to lower the pressure

setting.

Unlock the gun trigger safety

Hold a metal part of the gun firmly against and

aimed into a grounded metal waste container

Squeeze the trigger and hold it open, turn the

ON/OFF switch to ON, and slowly increase the

pressure setting until the sprayer starts.

Keep the gun triggered until all air is forced out

of the system and the paint flows freely from

the gun.

Release the trigger and lock the gun trigger

safety.

NOTE:

If the pump is hard to prime, place a container

under the drain valve and open it. Let the sprayer run

until paint is running through the drain valve. Close the

drain valve. This method bleeds the air from the pump.

Then release the gun trigger safety and trigger the gun

to prime the hose as instructed previously

, under

Prime the Sprayer

11.

Check all fluid connections for leaks. If any are

found, follow the

Pressure Relief Procedure

page 4, before tightening connections.

Adjust

the Spray Pattern

Increase

the pressure adjusting knob setting just until

spray from the gun is completely atomized. Use the

lowest pressure necessary to get the desired results,

which helps prolong the life of your sprayer and mini

mizes paint lost by overspray

est the spray pattern on a piece of light colored paper

The tip position determines the direction of the pattern

width. Before adjusting the pattern always follow the

Pressure Relief Procedure W

arning

on page 4.

Cleaning and Clearing the Spray Tip

WARNING

reduce the risk of injection injury

, DO NOT hold

your hand, body

, or a rag in front of the spray tip

when cleaning or checking a clogged tip. Always

point the gun toward the ground or into a waste

container when checking to see if the tip is clear

DO NOT try to “blow back” paint; this is NOT air

spray equipment.

If the spray tip clogs while spraying, lock the gun

trigger safety immediately

. DO NOT wipe build up

f the gun or tip until pressure is fully relieved. See

the

Pressure Relief Procedure W

arning

on page

Clean out the front of the spray tip frequently during

daily operation. First, follow the

Pressure Relief Pro

cedure W

arning

page 4. Then use a solvent soaked

brush to clean the spray tip and to keep build up from

drying and clogging the spray tip.

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Sherwin-Williams 820-001 Owner's Manual Page 11

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