Graco 295530 Operation, Parts, Service And Repair page 19

e. If buildup recurs shortly after cleaning
tip, remove air cap and ensure inside is
clean.
Reinstall air cap and ensure airflow is properly
set.
If no buildup occurred on air cap, check the fol-
lowing items in this order and readjust if neces-
sary:
• Check Valving Rod Adjustment
Screw/Sleeve setting.
Chamber
46-800
46-810
55-776
62
70
78-851
Table 1: Valving Rod Adjustment for Standard Mixing Chambers
311320J
Turns Out From Point of
Valving
Minimum Maximum
1/2 turn 2 turns
1/2 turn 2 turns
1 3/4 turns 2 5/8 turns
2 turns 3 turns
2 turns 3 turns
2 turns 3 turns
• Check hose temperature setting.
• Check primary heater temperature setting.
• Ensure spray pressures between chemi-
cals are balanced. If they are not, refer to
Troubleshooting section of Proportioning
Unit Operation Manual for the proportioner
in use.
• Ensure flow of air to air cap is adequate but
not excessive.
Recommended
Distance of Gun
from Surface
12 in. (304-8 mm)
12 in. (304-8 mm)
18 to 20 in. (457.2
to 508 mm)
18 to 20 in. (457.2
to 508 mm)
18 to 20 in. (457.2
to 508 mm)
24 in. (609.6 mm)
Spray Pattern Adjustment
Pattern Size
6 in. (152.4 mm)
6 in. (152.4 mm)
8 in. (203.2 to
228.6 mm)
8 to 9 in. (203.2
to 228.6 mm)
10 to 12 in. (254
to 304.8 mm)
14 in. (355.6 mm)
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