Graco 311320H important safety instructions Turns Out From Point Recommended

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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

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311320H

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Contents Important Safety Instructions Model D Spray GunContents ModelsPersonal Protective Equipment Fire and Explosion Hazard Overall View Major ComponentsCenterline Components Centerline ComponentsOperation Basics GroundingIsocyanate Hazard Keep a and B Components SeparateManual Valves Remove Coupling BlockValving Rod Adjustment Screw Air Hose ConnectionAir Cap Adjustment Valve Adjust Felt WiperClean Felt Wiper Felt WiperInitial Set Up Valving Rod Closed PositionDaily Start-Up Daily ShutdownPressure Relief Procedure Spray Pattern Adjustment Point of ValvingTern opens as adjustment is made FIG Turns Out From Point Recommended Valving Rod Adjustment for Standard Mixing ChambersDistance of Gun Chamber Minimum Maximum From Surface Maintenance Gun Service KitsClean Spray Gun Procedure Filter Screen Removal and Service RepairClean Injection Slots Check ValvesValving Rod Adjustment Not RemoveCenterline Component Removal Mixing Chamber RemovalSleeve Removal Block Centerline Component Installation Chamber SeatingRepair Model D Spray Gun Assembly PartsModel D Spray Gun Assembly No. Part No. DescriptionAC chamber Standard Mixing Chambers Air Cylinder Assembly Part NumberCoupling Block Assembly Model311320H Technical Data Category DataGraco Standard Warranty Graco Information