3M Paint Sprayer Series 52 User Manual

3M Automatic HVLP Spray Gun  
Owner’s Manual  
Series 52  
Series 56  
Series 55  
Series 57  
Read Warnings and Instructions  
This Manual Covers Spray Gun Models 52, 55, 55ZZ, 56, 56ZZ, 57, 57ZZ and 57UL  
Manual Available upon request in Spanish  
El manual está disponible en español cuando se lo solicite  
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3M™ Automatic HVLP Spray Gun Safety Statements  
Read, understand and follow all safety information contained in these instructions prior to set up and operation of  
any 3M™ Automatic HVLP Spray Gun. Retain these instructions for future reference. Refer to the applicable Material  
Safety Data Sheet and material container label for each material to be sprayed before using this 3M equipment.  
Intended Use:  
Each 3M™ Automatic HVLP Spray Gun is intended for use by professionals who are familiar with the possible applicable  
safety hazards. They are intended to deliver the desired production speed and finish quality for all commonly used coatings.  
The spray gun must be set up as specified in the 3M™ Automatic HVLP Spray Gun Owner’s Manual. It has not  
been evaluated for other uses.  
Explanation Of Signal Word Consequences  
WARNING:  
CAUTION:  
Indicates a hazardous situation, which, if not avoided, could result in death or serious injury.  
Indicates a hazardous situation, which, if not avoided, could result in minor or moderate injury.  
Explanation of Product Safety Label Symbols  
Attention: Read accompanying documentation  
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WARNING  
To reduce the risks associated with all residual hazards:  
• Read, understand, follow and retain for future reference all safety statements in each applicable equipment owner’s  
manual and refer to the applicable Material Safety Data Sheet & material container label for each material to be  
sprayed before using your 3M equipment.  
• This equipment is to be used only by professionals familiar with the possible applicable safety hazards.  
• Do not use this product around unsupervised children.  
• Never modify any part of this product.  
• Always comply with local, state and national codes governing ventilation, fire protection, operation, maintenance,  
housekeeping and disposal plus all safety statements in applicable owner manuals, MSDS and material container labels.  
To reduce the risks associated with chemical exposure:  
• Never point a spray gun at anyone else or place any part of your body in front of a spray nozzle.  
• Check spray equipment for damage and proper function before use. Repair/replace worn, damaged or malfunctioning  
components.  
• Always wear appropriate, approved personal protective equipment for eye, skin, respiratory and hearing protection  
per the applicable MSDS and material container labels at all times when spraying.  
To reduce the risks associated with fire and explosion:  
• Must maintain adequate ventilation per applicable MSDS and material container labels for each material being  
sprayed in the work area.  
• All ignition sources such as smoking must be kept out of the spray area.  
• Always maintain a readily available, approved fire extinguisher or other approved fire fighting equipment in the spray area.  
• Never use solvents containing Methylene Chloride and Trichloromethane for any reason to avoid a possible violent,  
explosive chemical reaction when exposed to aluminum or zinc (refer to the manufacturer’s MSDS or contact material  
supplier if there is any doubt to confirm compatibility).  
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CAUTION  
To reduce the risks associated with lifting and handling:  
• Always follow proper lifting and handling practices when moving system components.  
To reduce the risks associated with tripping, falling and tipping:  
• Route air hoses away from traffic areas.  
To reduce the risks associated with hazardous air pressure:  
• Maintain spray equipment per 3M care and cleaning instructions in the applicable owner’s manual.  
• Ensure air input pressure and all applicator system regulators are properly adjusted prior to each use.  
• Always follow required air pressure relief procedures for relieving air pressure from the unit.  
To reduce the risks associated with compression spring release:  
• Maintain a firm grip on fluid adjustment knob when removing.  
To reduce the risks associated with environmental contamination:  
• Spray materials, solvents, other cleaning materials and electronic components must be disposed of per federal, state  
and local regulations.  
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Spray Gun Overview  
3M spray guns were designed from the inside out for the effective, efficient, economical application of paints, adhesives,  
coatings and finishes. These spray guns deliver large spray patterns with very low overspray. The soft, tight, adjustable  
pattern with complete atomization results in a high finish quality and absolute control. Each light weight spray gun is  
designed for easy handling, reliability and durability and for minimum maintenance costs.  
3M’s Automatic HVLP spray guns deliver superior atomization for a wide range of coatings. The standard spray gun  
body is made of light weight aluminum. The Zinc HVLP Automatic Spray Gun body is made of composite material.  
Manufactured for durability and dependability, both versions are easy to maintain for long-lasting performance.  
3M equipment is for professional use only. Hazards can occur from equipment misuse. Any misuse of the equipment  
or accessories, such as over pressurizing, modifying parts, using incompatible chemicals and fluids, or using worn or  
damaged parts can cause serious bodily injury, fire, explosion or property damage. Please read and follow all Safety  
Statements and Instructions.  
Contents  
Unpacking  
Remove the components from the box. Inspect for concealed damage and/or missing items. If you discover any damage  
and/or missing pieces, contact your distributor immediately.  
3M™ Series 52 HVLP Automatic Spray Gun  
All Series 52 HVLP Automatic Spray Guns are non-bleed  
spray guns with low pressure air inlets and a manual rear fan  
control. These spray guns are available with an aluminum  
gun body, 10 cfm air consumption, 1:1 reduction ratio, ¾” air  
inlet connection, and a 10 psi maximum inlet air pressure*.  
These spray guns are most commonly used for stationary or  
reciprocator mounting applications.  
* Maximum inlet pressure will yield approximately 10 psi at the air cap.  
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Contents cont.  
3M™ Series 55 HVLP Automatic Spray Gun  
3M™ Series 55ZZ HVLP Automatic Spray Gun (Zinc)  
All Series 55 HVLP Automatic Spray Guns are bleeder spray  
guns with low pressure air inlets and a manual rear fan  
control. These spray guns are available with an aluminum  
gun body or a composite gun body with composite  
wetted components for zinc compatibility. The technical  
specifications include 10 cfm air consumption, 1:1 reduction  
ratio, ¾” air inlet connection, and a 10 psi maximum inlet  
air pressure*. These guns are most commonly used for  
stationary or reciprocator mounting applications.  
3M™ Series 56 HVLP Automatic Spray Gun  
3M™ Series 56ZZ HVLP Automatic Spray Gun (Zinc)  
All Series 56 HVLP Automatic Spray Guns are bleeder spray  
guns with dual air inlets for separate control of atomization  
and fan air pressures. These spray guns are available  
with an aluminum gun body or a composite gun body with  
composite wetted components for zinc compatibility. The  
technical specifications include 10 cfm air consumption,  
1:1 reduction ratio, ¾” air inlet connection, and a 10  
psi maximum inlet air pressure*. These guns are most  
commonly used for robotic and remote control applications.  
* Maximum inlet pressure will yield approximately 10 psi at the air cap.  
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Contents cont.  
3M™ Series 57 HVLP Automatic Spray Gun  
All Series 57 HVLP Automatic Spray Guns are bleeder spray  
guns with dual air inlets for separate control of atomization  
and fan air pressures. These spray guns are available with  
an aluminum gun body. The technical specifications include  
10 cfm air consumption, 1:1 reduction ratio, ¾” air inlet  
connection, and a 10 psi maximum inlet air pressure*.  
These guns are most commonly used for robotic and remote  
control applications.  
3M™ Series 57ZZ HVLP Automatic Spray Gun (Zinc)  
All 57ZZ Series HVLP Automatic Spray Guns are bleeder  
spray guns with dual air inlets for separate control of  
atomization and fan air pressures. These spray guns are  
available with a composite gun body with composite  
wetted components for zinc compatibility. The technical  
specifications include 10 cfm air consumption, 1:1 reduction  
ratio, ¾” air inlet connection, and a 10 psi maximum inlet air  
pressure*. These guns are most commonly used for robotic  
and remote control applications.  
3M™ Series 57UL HVLP Automatic Spray Gun (Ultralight)  
All 57UL Series HVLP Automatic Spray Guns are bleeder  
spray guns with dual air inlets for separate control of  
atomization and fan air pressures. These spray guns  
are available with a composite gun body. The technical  
specifications include 10 cfm air consumption, 1:1 reduction  
ratio, ¾” air inlet connection, and a 10 psi maximum inlet air  
pressure*. These guns are most commonly used for robotic  
and remote control applications.  
* Maximum inlet pressure will yield approximately 10 psi at the air cap.  
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Spray Gun Installation Guidelines  
3M™ Series 52 HVLP Automatic Spray Gun  
3M™ Series 55 HVLP Automatic Spray Gun  
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Spray Gun Installation Guidelines cont.  
3M™ Series 56 HVLP Automatic Spray Gun  
3M™ Series 57 HVLP Automatic Spray Gun  
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General Set Up and Spray Gun Use  
For additional instructions refer to your fluid source manual.  
3M™ Series 52 HVLP Automatic Spray Gun Connection Diagram  
Mounting Hole  
Fan Control  
Fluid Control  
Atomizing Air Inlet  
Trigger Air Inlet  
Fluid Inlet  
Series 52-901  
Single Fluid Inlet  
Adjustable Fluid  
Control  
Plug  
Series 52-902  
Dual Fluid Inlet  
Adjustable Fluid  
Control  
Fluid Inlet  
Series 52-904  
Dual Fluid Inlet  
Non-Adjustable  
Fluid Control  
Fluid Inlet  
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General Set Up and Spray Gun Use cont.  
3M™ Series 55 HVLP Automatic Spray Gun Connection Diagram  
Atomizing Air Inlet  
Mounting Hole  
Fan Control  
Fluid Control  
Fluid Inlet  
Trigger Air Inlet  
Series 55-901 Series  
Single Fluid Inlet  
Adjustable Fluid Control  
Plug  
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General Set Up and Spray Gun Use cont.  
3M™ Series 55ZZ HVLP Automatic Spray Gun Connection Diagram  
Atomizing Air Inlet  
Mounting Hole  
Fan Control  
Fluid Control  
Fluid Inlet  
Trigger Air Inlet  
Series 55ZZ-2  
Dual Fluid Inlet  
Adjustable Fluid  
Control  
Fluid Inlet  
Series 55ZZ-3  
Single Fluid Inlet  
Non-Adjustable  
Fluid Control  
Plug  
Series 55ZZ-4  
Dual Fluid Inlet  
Non-Adjustable  
Fluid Control  
Fluid Inlet  
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General Set Up and Spray Gun Use cont.  
3M™ Series 56 HVLP Automatic Spray Gun Connection Diagram  
Mounting Hole  
Atomizing Air Inlet  
Fluid Control  
Fluid Inlet  
Trigger Air Inlet  
Fan Control Air Port  
Series 56-901  
Single Fluid Inlet  
Adjustable Fluid  
Control  
Plug  
Fan Control Air Port  
Series 56-902  
Dual Fluid Inlet  
Adjustable Fluid  
Control  
Fluid Inlet  
Fan Control Air Port  
Series 56-904  
Dual Fluid Inlet  
Non-Adjustable  
Fluid Control  
Fluid Inlet  
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General Set Up and Spray Gun Use cont.  
3M™ Series 56ZZ HVLP Automatic Spray Gun Connection Diagram  
Mounting Hole  
Fluid Control  
Atomizing Air Inlet  
Fluid Inlet  
Trigger Air Inlet  
Fan Control Air Port  
Series 56ZZ-2  
Dual Fluid Inlet  
Adjustable Fluid  
Control  
Fluid Inlet  
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General Set Up and Spray Gun Use cont.  
3M™ Series 57 HVLP Automatic Spray Gun Connection Diagram  
Mounting Hole  
Fluid Control  
Trigger Air Inlet  
Fluid Inlet  
Fan Air Control  
Series 57-901  
Single Fluid Inlet  
Adjustable Fluid  
Control  
Plug  
Atomizing Air Inlet  
Series 57-902  
Dual Fluid Inlet  
Adjustable Fluid  
Control  
Fluid Inlet  
Atomizing Air Inlet  
Series 57-904  
Dual Fluid Inlet  
Non-Adjustable  
Fluid Control  
Fluid Inlet  
Atomizing Air Inlet  
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General Set Up and Spray Gun Use cont.  
3M™ Series 57ZZ HVLP Automatic Spray Gun Connection Diagram  
Mounting Hole  
Fluid Control  
Trigger Air Inlet  
Fan Air Control  
Fluid Inlet  
Series 57ZZ-1  
Single Fluid Inlet  
Adjustable  
Fluid Control  
Plug  
Atomizing Air Inlet  
Series 57ZZ-2  
Dual Fluid Inlet  
Adjustable  
Fluid Control  
Fluid Inlet  
Atomizing Air Inlet  
Series 57ZZ-3  
Single Fluid Inlet  
Non-Adjustable  
Fluid Control  
Fluid Inlet  
Atomizing Air Inlet  
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General Set Up and Spray Gun Use cont.  
3M™ Series 57UL HVLP Automatic Spray Gun Connection Diagram  
Mounting Hole  
Fluid Control  
Trigger Air Inlet  
Fluid Inlet  
Fan Air Control  
57UL-1 Series  
Single Fluid Inlet  
Adjustable Fluid Control  
Plug  
Atomizing Air Inlet  
57UL-2 Series  
Dual Fluid Inlet  
Adjustable Fluid Control  
Fluid Inlet  
Atomizing Air Inlet  
57UL-3 Series  
Single Fluid Inlet  
Non-Adjustable Fluid Control  
Plug  
Atomizing Air Inlet  
57UL-4 Series  
Dual Fluid Inlet  
Non-Adjustable Fluid Control  
Fluid Inlet  
Atomizing Air Inlet  
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General Set Up and Spray Gun Use cont.  
Adjusting the Fluid Flow  
Note: The small round pattern can be achieved by  
The adjustable fluid control is located at the rear of the  
spray gun (if equipped). As a starting point, gently turn  
the knob clockwise until you have very little needle  
travel. Do not over-tighten. After the needle travel has  
stopped, further tightening will only serve to compress  
the spring and will not aid in adjustment. Next turn the  
knob counterclockwise two full turns. These adjustment  
procedures will serve only as a starting point. Fine  
tuning of these adjustments will be based on your  
material and technique.  
closing down the fan adjustment.  
Spray Technique  
1.To achieve the best results when spraying material,  
keep the spray gun perpendicular to the surface and  
maintain a consistent distance of approximately 6 to 8  
inches (160-200 mm) from the object being sprayed.  
2.Apply coating with 50% overlap to achieve an even  
finish.  
Note: Your spray gun may be made from aluminum  
and may contain aluminum components. Certain  
solvents containing Methylene Chloride and  
Tricloromethane are not chemically compatible with  
aluminum.  
Adjusting the Fan Pattern Size  
The fan adjustment screw is located at the top of the  
Series 52 and Series 55 models, and the fan is adjusted  
by remote on the Series 56 and Series 57. As a starting  
point, gently turn the knob clockwise until you feel no  
further adjustment. Next, turn the knob counter-clockwise  
one full rotation. The fan adjustment will allow you to  
spray from a small round to a full fan pattern. The pattern  
can also be changed from vertical to horizontal by rotating  
the air cap a ¼ turn.  
Read, understand and follow all safety statements  
as well as wear appropriate, approved personal  
protective equipment per the applicable MSDS and  
material container labels for cleaning solutions.  
Vertical Pattern  
Horizontal Pattern  
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Spray Gun Care and Cleaning  
Lubrication:  
3M™ Series 56  
Regular lubrication is important to maintain the high  
performance of your HVLP Automatic Spray Gun. Every  
time your spray gun is cleaned, the oil that lubricates the  
friction points is washed away.  
You must lubricate all working threads after every  
cleaning. We recommend using a lubricant such as  
petroleum jelly. Using lubricants containing silicone  
can contaminate your entire finishing department. The  
following illustrations identify the spray gun lubrication  
points.  
3M™ Series 52  
3M™ Series 57  
3M™ Series 55  
General System Maintenance  
Relieve the pressure from the spray gun before  
servicing.  
1.Turn off the air supply to the  
spray gun.  
2.Disconnect air line from the  
spray gun.  
Clean the fluid and air line filters daily.  
Check for any fluid leakage from the spray gun and  
fluid hoses.  
Flush the spray gun before changing colors and when  
done operating the spray gun.  
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Spray Gun Care and Cleaning cont.  
ATTENTION  
8. Clean the front of the spray gun, using a soft-bristle  
brush and solvent.  
9. Scrub the retaining ring, air cap and fluid nozzle  
with a soft-bristle brush. To clean out air cap holes,  
use a small brush.  
Solvent left in the spray gun air passages could result  
in a poor quality paint finish. Do not use any cleaning  
method which may allow solvent into the spray gun air  
passages. Do not expose air regulators and gauges to  
solvent as damage may occur.  
Cleaning Process  
1. Relieve the pressure from the spray gun before  
servicing.  
2. Refer to your fluid source manual for removal and  
cleaning.  
3. To retain unused material or temporarily store mixed  
material, see your Local, State, Federal and OSHA  
guidelines, along with material manufacturer’s  
recommendations for storage.  
4. Flush the spray gun. To flush spray gun, run water or  
compatible and compliant solvent into the spray gun  
fluid passage while triggering the  
10. Clean the air cap and fluid nozzle after each use. Do not  
use metal tools to clean the air cap holes as this may  
scratch them; scratches can distort the spray pattern.  
Do not soak the retaining ring in solvent for prolonged  
periods of time.  
spray gun.  
5. Remove the retaining ring and air cap.  
6. Unscrew the fluid needle tip with fingers.  
7. Dip the end of a soft-bristle brush into a compatible  
solvent. Do not continuously soak the brush’s bristles  
with solvent, and do not use a wire brush.  
11. Thread fluid needle tip on finger tight. Tighten the  
nozzle securely to obtain a good seal.  
12. Install the retaining ring and air cap.  
13. Dampen a soft cloth with solvent and wring-out the  
excess. Wipe off the outside of the spray gun.  
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3M™ Series 52 HVLP Automatic Spray Gun Parts Identification  
2, 2*  
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3M™ Series 52 HVLP Automatic Spray Gun Parts Identification  
Item  
1
2
2*  
3
Description  
Replacement PN  
91-043  
91-009-XXX  
91-071-XXX  
Retaining Ring  
Air Cap (Composite)  
Air Cap (Aluminum)  
Fluid Nozzle  
4
Fluid Fitting  
95-025  
5
O-Ring  
6
7
Flat Head Screw  
Air Manifold  
95-002  
8
Set Screw  
UH-612/5  
(Pack of 5)  
9
Philips Pan Head Screw  
Valve Seal Ball  
Snap Ring  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
Fan Valve Body  
O-Ring  
Hex Jam Nut  
95-014  
Valve Stem  
95-015  
95-022  
95-018  
Autogun Body Assembly  
Cylinder Seal (U-Cup)  
O-Ring  
Piston 95-005  
Needle Tip (Delrin®)  
O-Ring  
91-107-XXX/4  
UH-768/5  
95-010  
(Pack of 4)  
(Pack of 5)  
Needle Shaft  
Piston Return Spring  
Needle Return Spring  
O-Ring  
Cylinder Cap (Adjustable)  
Stainless Steel Ball  
Compression Spring  
Set Screw  
Jam Nut UH-824  
Needle Adjustment Screw  
Cylinder Cap (Non-Adjustable)  
Plug  
Packing Nut  
Compression Spring  
Needle Guide  
O-Ring  
O-Ring  
Seal Housing  
Teflon® Seal  
Seal Nut  
Spacer  
Quick Disconnect Fitting  
Connection – ¼ NPS x 1/8 NPT  
Needle Cover  
Cylinder Cap (Adjustable) Assembly 95-039  
Fan Control Assembly  
Fluid Packing Kit  
UH-610  
95-013  
UH-691/5  
(Pack of 5)  
95-007  
95-071  
95-077  
UH-1405/10  
UH-647/10  
95-017  
95-020/2  
95-016  
95-073  
80-874  
80-932  
95-102  
(Pack of 10)  
(Pack of 10)  
(Pack of 2)  
94-041  
91-200  
95-043  
Universal Maintenance Kit  
Note: For all part numbers with X, see page 37  
* Denotes difference in material  
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3M™ Series 55 HVLP Automatic Spray Gun Parts Identification  
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3M™ Series 55 HVLP Automatic Spray Gun Parts Identification  
IItem  
1
2
2*  
3
Description  
Replacement PN  
91-043  
91-009-XXX  
91-071-XXX  
Retaining Ring  
Air Cap (Composite)  
Air Cap (Aluminum)  
Fluid Nozzle  
4
Fluid Fitting  
95-025  
5
6
7
Autogun Body Assembly  
Cylinder Seal (U-Cup)  
Piston  
95-028  
95-018  
95-031  
8
9
O-Ring  
Needle Tip (Delrin®)  
Needle Shaft  
UH-768/5  
91-107-XXX/4  
95-033  
(Pack of 5)  
(Pack of 4)  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
Needle Return Spring  
Cylinder Cap (Adjustable)  
Stainless Steel Ball  
Compression Spring  
Set Screw  
Jam Nut  
Needle Adjustment Screw  
O-Ring  
UH-610  
95-013  
UH-691/5  
UH-824  
95-032  
(Pack of 5)  
(Pack of 5)  
Air Manifold  
Set Screw  
95-030  
UH-612/5  
Flat Head Screw  
Air Inlet Fitting  
Philips Pan Head Screw  
Valve Seal Ball  
Snap Ring  
Fan Valve Body  
O-Ring  
Hex Jam Nut  
Valve Stem  
Plug  
O-Ring  
Needle Guide  
Compression Spring  
Packing Nut  
95-014  
95-036  
95-077  
UH-1405/10  
(Pack of 10)  
Seal Nut  
Teflon® Seal  
Seal Housing  
O-Ring  
Needle Cover  
Fluid Inlet Fitting  
Cylinder Cap (Adjustable) Assembly 95-040  
Fan Control Assembly  
Fluid Packing Kit  
95-020/2  
95-017  
UH-647/10  
95-102  
(Pack of 2)  
(Pack of 10)  
80-932  
95-042  
91-200  
95-043  
Universal Maintenance Kit  
Note: For all part numbers with X, see page 37  
* Denotes difference in material  
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3M™ Series 55ZZ HVLP Automatic Spray Gun Parts Identification  
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3M™ Series 55ZZ HVLP Automatic Spray Gun Parts Identification  
Item  
1
2
Description  
Replacement PN  
91-043  
91-009-XXX  
95-025  
Retaining Ring  
Air Cap (Composite)  
Fluid Fitting  
3
4
5
6
7
Delrin® Fluid Nozzle  
Autogun Body Assembly  
Cylinder Seal (U-Cup)  
Piston  
91-148-XXX  
95-028  
95-018  
95-031  
8
9
O-Ring  
UH-768/5  
95-048-XXX  
(Pack of 5)  
(Pack of 5)  
(Pack of 5)  
Full Delrin® Needle Assembly  
Needle Return Spring  
Cylinder Cap (Adjustable)  
Stainless Steel Ball  
Compression Spring  
Set Screw  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
95-091  
UH-610  
95-013  
UH-691/5  
UH-824  
95-032  
95-080  
Jam Nut  
Needle Adjustment Screw  
Cylinder Cap (Non-Adjustable)  
O-Ring  
Air Manifold  
Set Screw  
Flat Head Screw  
Air Inlet Fitting  
Philips Pan Head Screw  
Valve Seal Ball  
Fan Valve Body  
O-Ring  
Hex Jam Nut  
Valve Stem  
Plug  
Fluid Inlet Fitting  
Fluid Needle Packing  
Packing Nut  
Seal Nut  
Teflon® Seal  
95-030  
UH-612/5  
95-014  
95-036  
95-077-D  
80-932  
91-139  
91-023-D  
95-020/2  
95-017  
UH-647/10  
95-102  
(Pack of 2)  
Seal Housing  
O-Ring  
Needle Cover  
Cylinder Cap (Adjustable) Assembly 95-040  
Fan Control Assembly  
Universal Maintenance Kit  
(Pack of 10)  
95-042  
95-043  
Note: For all part numbers with X, see page 37  
3
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3M™ Series 56 HVLP Automatic Spray Gun Parts Identification  
27  
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3M™ Series 56 HVLP Automatic Spray Gun Parts Identification  
Item  
1
2
2*  
3
Description  
Replacement PN  
91-043  
91-009-XXX  
91-071-XXX  
Retaining Ring  
Air Cap (Composite)  
Air Cap (Aluminum)  
Fluid Nozzle  
4
Fluid Fitting  
95-025  
5
6
Autogun Body Assembly  
Fitting  
95-029  
80-932  
7
8
9
Quick Disconnect Fitting  
Cylinder Seal (U-Cup)  
Piston  
95-038  
95-018  
95-031  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
O-Ring  
Needle Tip (Delrin®)  
Needle Shaft  
Mounting Bracket  
Screw  
Set Screw  
Needle Return Spring  
Cylinder Cap (Adjustable)  
Jam Nut  
Needle Adjustment Screw  
Stainless Steel Ball  
Compression Spring  
Set Screw  
Compression Spring  
Cylinder Cap (Non-Adjustable)  
Plug  
O-Ring  
Needle Guide  
Compression Spring  
Packing Nut  
Seal Nut  
Teflon® Seal  
Seal Housing  
O-Ring  
Needle Cover  
UH-768/5  
91-107-XXX/4  
95-033  
(Pack of 5)  
(Pack of 4)  
95-037  
UH-612/5  
(Pack of 5)  
UH-824  
95-032  
UH-610  
95-013  
UH-691/5  
(Pack of 5)  
95-082  
95-077  
UH-1405/10  
(Pack of 10)  
95-016  
95-020/2  
95-017  
UH-647/10  
95-102  
(Pack of 2)  
(Pack of 10)  
Cylinder Cap (Adjustable) Assembly 95-040  
Fluid Packing Kit  
Universal Maintenance Kit  
91-200  
95-043  
Note: For all part numbers with X, see page 37  
* Denotes difference in material  
3
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3M™ Series 56ZZ HVLP Automatic Spray Gun Parts Identification  
29  
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3M™ Series 56ZZ HVLP Automatic Spray Gun Parts Identification  
Item  
1
Description  
Replacement PN  
91-043  
Retaining Ring  
Air Cap (Composite)  
Delrin® Fluid Nozzle  
Fluid Fitting  
2
91-009-XXX  
91-148-XXX  
95-025-D  
95-029-D  
80-932  
3
4
5
Autogun Body Assembly  
Fitting  
6
7
Quick Disconnect Fitting  
Cylinder Seal (U-Cup)  
Piston  
95-038  
8
95-018  
9
95-031  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
O-Ring  
UH-768/5  
95-048-XXXD  
95-037  
(Pack of 5)  
(Pack of 5)  
Full Delrin® Needle Assembly  
Mounting Bracket  
Screw  
Set Screw  
UH-612/5  
Needle Return Spring  
Cylinder Cap (Adjustable)  
Jam Nut  
95-089  
Needle Adjustment Screw  
Stainless Steel Ball  
Compression Spring  
Set Screw  
95-032  
UH-610  
95-013  
UH-691/5  
91-139  
(Pack of 5)  
Needle Fluid Packing  
Packing Nut  
91-023-D  
95-016-D  
95-020/2  
95-017  
Seal Nut  
Teflon® Seal  
(Pack of 2)  
Seal Housing  
O-Ring  
UH-647/10  
95-102  
(Pack of 10)  
Needle Cover  
Cylinder Cap (Adjustable) Assembly 95-040  
Universal Maintenance Kit 95-043  
Note: For all part numbers with X, see page 37  
3
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3M™ Series 57 HVLP Automatic Spray Gun Parts Identification  
31  
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3M™ Series 57 HVLP Automatic Spray Gun Parts Identification  
Item  
1
2
2*  
3
Description  
Replacement PN  
91-043  
91-009-XXX  
91-071-XXX  
Retaining Ring  
Air Cap (Composite)  
Air Cap (Aluminum)  
Fluid Nozzle  
4
5
6
7
Fluid Fitting-Elbow  
Threaded Insert  
Mounting Bracket  
Screw  
95-SP2-10  
95-037  
8
9
Set Screw  
UH-612/5  
95-SP2-8  
95-SP2-1  
95-018  
Pack of 5)  
Trigger Fitting  
Autogun Body Assembly  
Cylinder Seal (U-Cup)  
Piston  
O-Ring  
Needle Tip (Delrin®)  
Needle Shaft  
Needle Return Spring  
Cylinder Cap (Adjustable)  
Jam Nut  
Needle Adjustment Screw  
Stainless Steel Ball  
Compression Spring  
Set Screw  
Cylinder Cap (Non-Adjustable)  
Plug  
O-Ring  
Needle Guide  
Compression Spring  
Packing Nut  
Seal Nut  
Teflon® Seal  
Seal Housing  
O-Ring  
Needle Cover  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
95-031  
UH-768/5  
91-107-XXX/4  
95-033  
(Pack of 5)  
(Pack of 4)  
UH-824  
95-032  
UH-610  
95-013  
UH-691/5  
95-082  
95-077  
(Pack of 5)  
UH-1405/10  
(Pack of 10)  
95-016  
95-020/2  
95-017  
UH-647/10  
95-102  
95-076  
95-078  
95-075  
UH-967  
UH-911  
(Pack of 2)  
(Pack of 10)  
Mounting Stud  
Manifold Gasket  
Manifold Block  
Elbow  
Hex Nut with Lock Washer  
Cylinder Cap (Adjustable) Assembly 95-040  
Universal Maintenance Kit  
Fluid Packing Kit  
95-043  
91-200  
Note: For all part numbers with X, see page 37  
* Denotes difference in material  
3
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3M™ Series 57ZZ HVLP Automatic Spray Gun Parts Identification  
33  
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3M™ Series 57ZZ HVLP Automatic Spray Gun Parts Identification  
Item  
1
Description  
Retaining Ring  
Replacement PN  
91-043  
2
3
4
5
6
7
Air Cap (Composite)  
Delrin® Fluid Nozzle  
Fluid Fitting-Elbow  
Threaded Insert  
Mounting Bracket  
Screw  
91-009-XXX  
91-148-XXX  
95-037  
8
9
Set Screw  
UH-612/5  
95-083  
(Pack of 5)  
(Pack of 5)  
Autogun Body Assembly  
Trigger Fitting-Elbow  
Cylinder Seal (U-Cup)  
Piston  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
95-018  
95-031  
UH-768/5  
95-048-XXXD  
O-Ring  
Full Delrin® Needle Assembly  
Needle Return Spring  
Cylinder Cap (Adjustable)  
Jam Nut  
Needle Adjustment Screw  
Stainless Steel Ball  
Compression Spring  
Set Screw  
Cylinder Cap (Non-Adjustable)  
Plug  
Needle Fluid Packing  
Packing Nut  
95-089  
95-032  
UH-610  
95-013  
UH-691/5  
95-080  
95-077-D  
91-139  
91-023-D  
95-016-D  
95-020/2  
95-017  
UH-647/10  
95-102  
95-076  
(Pack of 5)  
Seal Nut  
Teflon® Seal  
Seal Housing  
O-Ring  
(Pack of 2)  
(Pack of 10)  
Needle Cover  
Mounting Stud  
Manifold Gasket  
Manifold Block  
Elbow  
Hex Nut with Lock Washer  
Cylinder Cap (Adjustable) Assembly 95-040  
Universal Maintenance Kit 95-043  
95-078  
95-075  
UH-967  
UH-911  
Note: For all part numbers with X, see page 37  
3
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3M™ Series 57UL HVLP Automatic Spray Gun Parts Identification  
35  
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3M™ Series 57UL HVLP Automatic Spray Gun Parts Identification  
Item  
1
Description  
Retaining Ring  
Replacement PN  
91-043  
2
3
4
5
6
7
Air Cap (Composite)  
Delrin® Fluid Nozzle  
Fluid Fitting-Elbow  
Threaded Insert  
Mounting Bracket  
Screw  
91-009-XXX  
91-148-XXX  
95-037  
8
Set Screw  
UH-612/5  
(Pack of 5)  
9
Autogun Body Assembly  
Trigger Fitting-Elbow  
Cylinder Seal (U-Cup)  
Piston  
95-083  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
95-018  
95-031  
UH-768/5  
91-107-XXX/4  
95-033  
O-Ring  
(Pack of 5)  
(Pack of 4)  
Delrin® Needle Tip  
Stainless Steel Needle Shaft  
Needle Return Spring  
Cylinder Cap (Adjustable)  
Jam Nut  
Needle Adjustment Screw  
Stainless Steel Ball  
Compression Spring  
Set Screw  
Cylinder Cap (Non-Adjustable)  
Plug  
Needle Fluid Packing  
Packing Nut  
95-089  
95-032  
UH-610  
95-013  
UH-691/5  
95-080  
95-077-D  
91-139  
91-023-D  
95-016-D  
95-020/2  
95-017  
UH-647/10  
95-102  
95-076  
(Pack of 5)  
Seal Nut  
Teflon® Seal  
Seal Housing  
O-Ring  
(Pack of 2)  
(Pack of 10)  
Needle Cover  
Mounting Stud  
Manifold Gasket  
Manifold Block  
Elbow  
Hex Nut with Lock Washer  
Cylinder Cap (Adjustable) Assembly 95-040  
Universal Maintenance Kit 95-043  
95-078  
95-075  
UH-967  
UH-911  
3
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3M™ Tip/Nozzle/Air Cap Selection Guide  
Standard Tip/Nozzle  
Size  
.021 (0.5mm) Replacement Tips  
Standard Tip/Nozzle Set  
.028 (0.7mm) Replacement Tips  
Standard Tip/Nozzle Set  
.036 (0.9mm) Replacement Tips  
Standard Tip/Nozzle Set  
.043 (1.1mm) Replacement Tips  
Standard Tip/Nozzle Set  
.051 (1.3mm) Replacement Tips  
Standard Tip/Nozzle Set  
.061 (1.5mm) Replacement Tips  
Standard Tip/Nozzle Set  
.072 (1.8mm) Replacement Tips  
Standard Tip/Nozzle Set  
.084 (2.0mm) Replacement Tips  
Standard Tip/Nozzle Set  
.110 (3.0mm) Replacement Tips  
Standard Tip/Nozzle Set  
Description  
Replacement PN  
91-107-021/4 (Pack of 4)  
91-143-021DT  
91-107-028/4 (Pack of 4)  
91-143-028DT  
91-107-036/4 (Pack of 4)  
91-143-036DT  
91-107-043/4 (Pack of 4)  
91-143-043DT  
91-107-051/4 (Pack of 4)  
91-143-051DT  
91-107-061/4 (Pack of 4)  
91-143-061DT  
91-107-072/4 (Pack of 4)  
91-143-072DT  
91-107-084/4 (Pack of 4)  
91-143-084DT  
91-107-110/4 (Pack of 4)  
91-143-110DT  
Air Cap  
Air Cap Number  
Description  
Replacement PN  
2
Aluminum Air Cap  
91-071-2  
3
4
5
6
7
8
Aluminum Air Cap  
Aluminum Air Cap  
Aluminum Air Cap  
Aluminum Air Cap  
Aluminum Air Cap  
91-071-3  
91-071-4  
91-071-5  
91-071-6  
91-071-7  
Aluminum Air Cap  
Composite Air Cap  
91-071-8  
91-009-8  
9
Aluminum Air Cap  
Composite Air Cap  
91-071-9  
91-009-9  
10  
11  
Aluminum Air Cap  
Composite Air Cap  
Aluminum Air Cap  
Composite Air Cap  
91-071-10  
91-009-10  
91-071-11  
91-009-11  
12  
13  
Composite Air Cap  
Composite Air Cap  
91-009-12  
91-009-13  
37  
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3M™ Tip/Nozzle/Air Cap Selection Guide  
Size  
Description  
Replacement PN  
95-048-021D  
91-148-021  
.021 (0.5mm) Full Delrin® Needle Assembly  
Delrin® Fluid Nozzle  
.028 (0.7mm) Full Delrin® Needle Assembly  
Delrin® Fluid Nozzle  
95-048-028D  
91-148-028  
.036(0.9mm) Full Delrin® Needle Assembly  
Delrin® Fluid Nozzle  
95-048-036D  
91-148-036  
.043 (1.1mm) Full Delrin® Needle Assembly  
Delrin® Fluid Nozzle  
95-048-043D  
91-148-043  
.051 (1.3mm) Full Delrin® Needle Assembly  
Delrin® Fluid Nozzle  
95-048-051D  
91-148-051  
.061 (1.5mm) Full Delrin® Needle Assembly  
Delrin® Fluid Nozzle  
95-048-061D  
91-148-061  
.072 (1.8mm) Full Delrin® Needle Assembly  
Delrin® Fluid Nozzle  
95-048-072D  
91-148-072  
.084 (2.0mm) Full Delrin® Needle Assembly  
Delrin® Fluid Nozzle  
95-048-084D  
91-148-084  
3
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Troubleshooting  
Problem  
Cause  
Remedy  
Air cap or nozzle clogged  
Bent fluid needle  
Moisture on surface  
Wrong solvent  
Clean with appropriate solvent  
Replace fluid needle  
Clean surface  
Bad Spray Pattern  
Check solvent  
Blistering  
Coats not compatible  
Insufficient dry time  
Surface too cold  
Check material compatibility  
Longer dry time  
Warm surface  
Air contamination  
Add air filtration  
Fish Eyes  
Silicone contamination  
Too much fluid pressure  
Not enough atomizing pressure  
Worn or loose packing  
Low fluid pressure  
Restriction in fluid line Blocked hose  
Fluid nozzle too small  
Low fluid pressure  
Clean surface with solvent  
Reduce fluid pressure  
Increase atomizing pressure  
Tighten or replace  
Add fluid or increase fluid pressure  
Use 3/8” fluid hose Flush or replace hose  
Use larger needle/nozzle  
Increase fluid pressure  
Tack wipe before spray  
Change or strain  
Heavy Middle Pattern  
Intermittent Pulsating Spray  
Insufficient Fluid Flow, Pressure Feed  
Coarse or Lumpy Surface  
Dirt or dust on surface  
Material is contaminated  
Coating too thin  
Use less thinner  
Mottled Looking Surface  
Coats too wet  
Use less thinner  
Improper spray technique  
Clogged fluid nozzle  
Loss of fluid pressure  
Clogged air passage  
Restriction in mat’l hose  
Clogged check valve  
Paint drying too fast  
Gun too far from target  
Viscosity too high  
Gun too far from target  
Too much atomizing air for coating being  
sprayed  
Trapped solvent  
Improper solvent  
Ensure gun is parallel to work  
Clean fluid nozzle  
Out of paint  
Clean with solvent  
Flush with solvent  
Replace check valve  
Use proper solvent  
6-8 inches is ideal  
Reduce with solvent  
6-8 inches is ideal  
No Paint Flow  
Orange Peel  
Overspray is Excessive  
Pin-Holing, Solvent Pops  
Reduce atomizing air  
Apply lighter coats  
Check coating manufacturer  
Clean all parts  
System contaminated  
Wrong needle size  
Replace  
Damaged-worn needle  
Loose fluid nozzle  
Replace  
Tighten or replace  
Paint Leak  
Worn/loose packing nut  
Tighten or replace  
Packing too tight. Broken or missing needle  
spring. Dried paint on needle.  
Tighten or replace  
Needle not closing  
Loose fluid fitting  
39  
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Spray Equipment Warranty and Limited Remedy  
3M™ warrants to the original purchaser that, when used in accordance with 3M’s written instructions, 3M spray  
equipment will be free of defects in materials and manufacture for one year from the date of purchase. This warranty  
does not apply to damage or malfunction caused by normal wear, failure to maintain, or by any abuse, accident,  
tampering, alteration, or misuse of the spray equipment.  
To make a claim under the warranty, you must first contact the 3M service center at 1-877-MMM-CARS to receive a  
return authorization number. Spray equipment must be returned, freight prepaid by the purchaser, to the service location  
address given by the 3M service center. Upon validation of the warranty claim, 3M will replace or repair the spray gun,  
at 3M’s option, and return it to the purchaser at 3M’s expense, including parts, labor and return shipping charges. If it is  
determined that the claim is not covered by the warranty, the purchaser will be given the option to have the spray gun  
repaired outside of the warranty. An estimate of parts and labor will be provided by 3M and must be approved by the  
purchaser in advance.  
Except as written above, 3M MAKES NO OTHER EXPRESS OR IMPLIED WARRANTIES OR CONDITIONS, INCLUDING BUT NOT  
LIMITED TO ANY IMPLIED WARRANTY OR CONDITION OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The  
purchaser is responsible for determining whether the 3M spray equipment is fit for any particular purpose intended.  
Limitation of Liability: The remedies set forth above are exclusive. Except where prohibited by law, 3M and any seller of the  
spray equipment will not be liable for any loss or damage arising from or related to the use or inability to use this product,  
whether direct, indirect, special, incidental or consequential, regardless of the legal theory or basis of liability asserted.  
Contact Information  
TO PLACE AN ORDER, contact your 3M Sales Representative or Distributor, or call this number:  
1-877-MMM-CARS  
(1-877-666-2277)  
All written and visual data contained in this document reflects the latest  
product information available at the time of publication.  
3M reserves the right to make changes at any time without notice.  
3M Automotive Aftermarket Division  
31100 Solon Road, Bldg. B  
Solon, OH 44139-3462  
PRINTED IN U.S.A. ©3M 2008. All Rights Reserved.  
3M is a trademark of 3M Company.  
Teflon® and Delrin® are registered trademarks of E.I. du Pont de Nemours and Company.  
Revision A  
34-8701-7283-9  
3
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DO NOT PRINT THIS PAGE  
Contact: Correen Rosenberger  
Creator: deZinnia  
Spec # 34-8701-7283-9  
Structure: SS-19907  
Inks: Black  
Date: 9/05/08  
All Prints BLACK  
This artwork has been created as requested by 3M. 3M is  
responsible for the artwork AS APPROVED and assumes full  
responsibility for its correctness.  
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