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Setup, Caution, Warning – Graco Inc. 237-421 User Manual

Page 5: I. prepare the operator, Ii. prepare the site

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5

308-460

Setup

CAUTION

This equipment is compatible with most water
based materials. See the wetted parts in the Tech-
nical Data
section and your fluid and solvent
manufacturer’s compatibility information.

I.

Prepare the operator.

All persons who operate the system should be trained
in the safe, efficient operation of all system compo-
nents as well as the proper handling of the chemical
coating. At a minimum, all operators should
thoroughly read the safety, installation and operation
sections of this manual and the component manuals.

II.

Prepare the site.

1.

Use a minimum recommended 5 HP (3.7 kW) air
compressor for efficient operation.

2.

Clear obstacles and debris that could hinder the
operator’s movement.

3.

Bring an air line from your compressed air supply
to the pump location. Be sure the air is dry and
filtered. Install a bleed–type master air valve (A)
upstream from the pump. Another master air valve
(14) is supplied with the package. When the
bleed–type master air valve is closed and the
pump air regulator (8a) is opened, the valve
relieves all air pressure to the system.

4.

Have a grounded metal waste pail available to use
when draining the fluid filter.

5.

Ventilate the spray booth.

WARNING

To prevent hazardous concentrations of toxic and/
or flammable vapors, spray only in a properly venti-
lated spray booth. Never operate the spray gun
unless ventilation fans are operating.

Check and follow all of the national, state and local
codes regarding air exhaust velocity requirements.

Fig. 1

04098

KEY

Components you must supply:

A

Bleed-type master air valve
Required for pump; order
part no. 107–142, 1/4” npt(f)

B

Air filter. Order part no.
106–149, 1/2 npt(f)

C

Air supply line

D

Grounded 5 gallon metal pail

E

Air line moisture trap

Components supplied with package:

1

30:1 President pump

3

Air-assisted airless spray gun

4

Spray tip

5

Fluid filter

6

Gun fluid hose

7

Gun air hose

8a

Pump air regulator

8b

Gun air regulator

14

Bleed–type air valve

30

Pump ground wire

7

6

3,4

A

B

E

D

1

30

8b

8a

14

5

C