Spray Pattern Adjustment

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.

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.

 

Turns Out From Point of

Recommended

 

 

Valving

 

 

Distance of Gun

 

 

 

 

 

Chamber

Minimum

Maximum

from Surface

Pattern Size

 

 

 

 

 

 

 

 

 

 

46-800

1/2 turn

2 turns

12 in. (304-8 mm)

6 in. (152.4 mm)

 

 

 

 

 

46-810

1/2 turn

2 turns

12 in. (304-8 mm)

6 in. (152.4 mm)

 

 

 

 

 

55-776

1 3/4 turns

2 5/8 turns

18 to 20 in. (457.2

8 in. (203.2 to

 

 

 

to 508 mm)

228.6 mm)

 

 

 

 

 

62

2 turns

3 turns

18 to 20 in. (457.2

8 to 9 in. (203.2

 

 

 

to 508 mm)

to 228.6 mm)

 

 

 

 

 

70

2 turns

3 turns

18 to 20 in. (457.2

10 to 12 in. (254

 

 

 

to 508 mm)

to 304.8 mm)

 

 

 

 

 

78-851

2 turns

3 turns

24 in. (609.6 mm)

14 in. (355.6 mm)

 

 

 

 

 

Table 1: Valving Rod Adjustment for Standard Mixing Chambers

16

311320G

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Image 16
Graco Inc 295533, 295530, 295531 Turns Out From Point Recommended, Distance of Gun Chamber Minimum Maximum From Surface