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JET  

11 

 

Problem 

Possible cause 

Remedy 

Gun leaks from fluid 
nozzle. 

Foreign substances between 
fluid nozzle and needle. 

Disassemble and clean nozzle and 
needle. 

Paint emerges from needle 
packing. 

Needle packing is damaged or 
missing. 

Replace packing. 

Too much overspray. 

Gun too far away. 

Move gun closer to work surface. 

Excessive fluid. 

Reduce fluid flow. 

Excessive air pressure. 

Reduce air flow. 

Nozzle too large for project. 

Try smaller nozzle kit. 

“Orange peel” finish 
(textured instead of 
smooth). 

Insufficient air pressure for 
proper atomization. 

Increase air flow. 

Fluid too thick. 

Thin the fluid and retry. 

Applying fluid at an angle. 

Apply perpendicular to work 
surface. 

 

Spray nozzle applications 

Below are general applications for accessory nozzles available for this spray gun. This is only a general 
guide; consult the fluid material manufacturer for more information on efficient use of their product.  

Nozzle size 

General application 

mm inch 

1.3 

0.05 

clearcoats, water-based and single stage paints 

1.4 

0.055 

basecoats, thicker clearcoats, single stage urethanes 

1.7 

0.066 

primers; upper level for urethanes, lower level for polyurethanes 

2.1 0.083 

heavy-bodied 

primers 

 

 

Replacement parts 

Service parts are listed on the following pages. To order parts or reach our service department, call 1-800-
274-6848 Monday through Friday, 8:00 a.m. to 5:00 p.m. CST. Please have the stock number and serial 
number of your tool available when you call, so that we may serve you quickly and accurately. 

 

 

 

Summary of Contents for JAT-500

Page 1: ...Pneumatic HVLP Spray Gun 505500 JAT 500 Operation Parts Manual M 505500 Edition 2 10 2015 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2015 JET...

Page 2: ...ded JET has Authorized Service Centers located throughout the United States For the name of an Authorized Service Center in your area call 1 800 274 6846 or use the Service Center Locator on the JET w...

Page 3: ...romium from chemically treated lumber Your risk of exposure varies depending on how often you do this type of work To reduce your exposure to these chemicals work in a well ventilated area and work wi...

Page 4: ...particles caught in the air stream Exercise proper caution 30 Use only recommended accessories improper accessories may be hazardous 31 Maintain tools with care Keep air tool clean and oiled for best...

Page 5: ...his document The instructions and warnings in this manual may not encompass all possible workplace environments The operator is expected to take appropriate precautions and exercise common sense As wi...

Page 6: ...y material Die casting Fluid tip and needle material Stainless steel Net weight gun body 1 01 lb 0 46 kg Net weight accessories 0 59 lb 0 27 kg Shipping weight 2 05 lb 0 93 kg 1 The specified values a...

Page 7: ...y Retighten air cap Horizontal horns as shown in Figure 1 will produce vertical pattern for side to side motion Vertical horns produce horizontal pattern used for top to bottom motion 5 Squeezing trig...

Page 8: ...n 4 Use solvent and the provided brush to remove any deposits around fluid nozzle 5 For more detailed cleaning use provided spanner to remove fluid control knob fluid nozzle and needle in that order C...

Page 9: ...r intake with a replaceable air filter that can be easily cleaned Use safety shut off valves so air flow can be stopped quickly in case of a line break When using multiple hoses air hoses should be la...

Page 10: ...acement is necessary Pressure too high for material viscosity being sprayed Reduce air pressure Increase material viscosity Pattern may also be corrected by narrowing fan size with spray width adjuste...

Page 11: ...icular to work surface Spray nozzle applications Below are general applications for accessory nozzles available for this spray gun This is only a general guide consult the fluid material manufacturer...

Page 12: ...12 JAT 500 HVLP Spray Gun 505500 JAT 500 HVLP Spray Gun exploded view...

Page 13: ...ssembly 1 18 JAT500 18 Fan control knob 1 19 JAT500 19 Screw M4x8 1 20 JAT500 20 Air inlet 1 4in PS 1 21 JAT500 21 Air regulator assembly 1 22 JAT500 22 Pivot pin 1 23 JAT500 23 Pin with hole 1 24 JAT...

Page 14: ...14 JAT 500 HVLP Spray Gun This page intentionally left blank...

Page 15: ...JET 15 This page intentionally left blank...

Page 16: ...16 JAT 500 HVLP Spray Gun 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...

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