Parts, Material flow adjustments, Air flow valve adjustment – Graco Inc. 238080 User Manual

Page 2: Technical data

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When spraying small, confined areas, use the valve
and knob to make fine adjustments without adjusting
the pump.

Material flow adjustments

(Fig. 1)

For a lighter spray pattern, adjust the air needle (18)
closer to the fluid tip and/or reduce the fluid pressure.

For a heavier spray pattern, adjust the air needle (18)
farther back from the fluid tip and/or increase the fluid
pressure.

NOTE: Withdrawing needle valve (18) too far can force

air back into fluid hose, stopping material flow.

Air flow valve adjustment

To decrease air flow turn the valve (5) clockwise.

To increase air flow, turn the valve (5) counter clock-
wise.

Check and thin the material as needed to maintain the
proper consistency. The material may thicken as it sits
and slow down production or affect the spray
pattern.

Flush and dry gun thoroughly at end of each work day.

Fig. 1

2

05614A

17

5

1

3

11

10

6

4

8

1

12

1

1

Apply PST sealant

9

1

1

1

23

22

18

21

20

19 13 – 16

Ref
No

Part No.

Description

Qty

Ref
No

Part No.

Description

Qty

1

HOSE, coupled, air

1

113377

Model 238080

1

113601

Model 238807

1

2

HOSE or TUBE, fluid, with swivel

1

113378

Model 238080 (hose)

1

191633

Model 238807 (tube)

1

3

15B565

VALVE, ball, air

1

4

190807

BRACKET, valve, air

1

5

112779

VALVE, needle, air

1

6

113114

LOCKNUT, 1 in. npt

1

7

110110

SEALANT, PST (not shown)

1

8

190940

HANDLE, valve

1

9

113387

SLEEVE, handle

1

10

15E359

COUPLER, 1 in. male

1

11

119394

FITTING, air

1

12

238955

SPRAY GUN, flexhead

1

(includes items 13 – 16 and 18 – 23)

13

190943

TIP, spray gun, 3/16 in.

1

14

190944

TIP, spray gun, 1/4 in.

1

15

190945

TIP, spray gun, 5/16 in.

1

16

190946

TIP, spray gun, 3/8 in.

1

17

113121

VALVE, ball, 1 in.

1

18

190947

NEEDLE, air

1

19

190948

CAP, tip retaining

1

20

190942

HOUSING, spray gun

1

21

104282

O-RING

1

22

M70895

BUSHING

1

23

100085

SCREW

1

Technical Data

Weight

67 oz (1900 grams)

. . . . . . . . . . . . . . . . . . . . . . . .

This manual contains English. MM 308603

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

GRACO INC.

P.O. BOX 1441

MINNEAPOLIS, MN

55440–1441

308603 April 1996, Revised 8/2007

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