Parts, Material flow adjustments, Air flow valve adjustment – Graco Inc. 238080 User Manual
Page 2: Technical data

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