Grizzly Paint Sprayer H8224 User Manual

MODEL H8224  
HVLP SPRAY GUN  
INSTRUCTION MANUAL  
COPYRIGHT © AUGUST, 2007 BY GRIZZLY INDUSTRIAL, INC.  
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE  
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.  
#TR9837 PRINTED IN CHINA  
 
13. UNTRAINED  
&
UNSUPERVISED  
6. USE CORRECT AIR PRESSURE.  
Exceeding the maximum PSI rating  
of this spray gun may cause unpre-  
dictable operation or bursting.  
7. DISCONNECT AIR PRESSURE  
before servicing, changing accesso-  
ries, or moving to another location.  
Never leave this spray gun unat-  
tended when connected to air.  
8. AVOID IGNITION SOURCES.  
Spraying around ignition sources  
may cause fire or an explosion.  
Do not spray around any ignition  
sources or potential ignition sources.  
Be aware of appliances that have  
pilot lights or machinery that cre-  
ates sparks during operation. Do not  
smoke in the spraying area or when  
spraying.  
USE. Untrained operators may not be  
aware of the safe use of this spray gun  
and may injure themselves or cause  
fire. All untrained operators must be  
directly supervised at all times if using  
this spray gun.  
14. READ MATERIAL LABELS and  
MATERIAL SAFETY DATA SHEETS  
(MSDS). Read and know all the  
instructions on the packaging label  
and the MSDS before opening the  
package. This information could save  
your life.  
15. PROTECTIVE CLOTHING. Protect  
exposed skin from overspray by wear-  
ing a protective suit or other approved  
garment.  
16. INAPPROPRIATE USE. DO NOT  
point or shoot spray gun directly at  
yourself or another person or animals.  
Do not attempt to use the spray gun for  
any other use than it was intended.  
17. STORAGE. Thoroughly clean and dry  
spray gun before storage. Store in an  
approved cabinet.  
18. BE AWARE OF HOSE LOCATION.  
Hoses can easily become a tripping  
hazard when laid across the floor in a  
disorganized fashion.  
9. FIRE EXTINGUISHERS. Always  
have a fully charged multi-class  
or class B fire extinguisher in the  
immediate area.  
10. AVOID  
UNINTENTIONAL  
OPERATION. Always disconnect air  
when not in use, and do not carry  
tool with hand on trigger.  
11. KEEP CHILDREN AWAY. Avoid  
injury to children by keeping them  
away from this spray gun. Disconnect  
and lock the spray gun away when  
not in use.  
12. AVOID USE WHEN TIRED OR ON  
DRUGS OR ALCOHOL. Avoid using  
this spray gun if you are overly tired  
or intoxicated. Using this spray gun  
during these times may increase the  
risk of injury or fire.  
19. SOLVENTS. Always store solvents  
and shop towels soaked in solvent in  
approved containers.  
20. LOCAL LAWS. Consult local authori-  
ties regarding exhaust and waste dis-  
posal requirements.  
-2-  
Model H8224 HVLP Spray Gun  
 
INTRODUCTION  
Foreword  
Specifications  
The specifications, details, and photographs  
in this manual represent the Model H8224  
as supplied when the manual was prepared.  
However, owing to Grizzly’s policy of  
continuous improvement, changes may be  
made at any time with no obligation on the  
part of Grizzly.  
Cup Size............................................120cc  
Feed Type .......................................Gravity  
Fluid Tip Size................................... 0.8mm  
Air Consumption.................... 4.2–7.1 CFM  
Operating Pressure Range........ 44–58 PSI  
Max. Air Pressure.......................... 120 PSI  
Cup Material.....................................Plastic  
Pattern Width......... 718"-934" (180–250mm)  
Body Material ............................. Aluminum  
Air Inlet Size ...................................14" NPT  
If you have any comments regarding this  
manual, please write to us at the following  
address:  
Grizzly Industrial, Inc.  
C/O Technical Documentation  
P.O. Box 2069  
Bellingham, WA 98227-2069  
Most importantly, we stand behind our  
tools. If you have any service questions or  
parts requests, please call or write us at  
the location listed below.  
Read the manual before operation.  
Become familiar with this tool, its  
safety instructions, and its operation  
before beginning any work. Serious  
personal injury may result if safety  
or operational information is not  
understood or followed.  
Grizzly Industrial, Inc.  
1203 Lycoming Mall Circle  
Muncy, PA 17756  
Phone: (570) 546-9663  
Fax: (800) 438-5901  
Model H8224 HVLP Spray Gun  
-3-  
 
SETUP  
Assembly & Setup  
Inventory  
Beforeassemblingandusingthespraygun,  
thoroughly clean and dry all parts. Please  
refer to Cleaning in the MAINTENANCE  
section on Page 10 for more detailed  
instructions. Make sure all connections are  
tight enough to prevent air leaks but not so  
tight as to damage the tool.  
Your spray gun left our warehouse in a  
carefully packed box. If you discover the  
spray gun is damaged after you have  
signed for delivery, please immediately  
call Customer Service at (570) 546-9663  
for advice.  
Save all packing materials for possible  
inspection by the carrier or its agent.  
Otherwise, filing a shipping claim can be  
difficult.  
To setup the spray gun:  
1. Insert the filter into the gun body (see  
Figure 2). Note: One of the plastic  
filters may come pre-installed in the  
spray gun; if so, skip this step.  
After you have unpacked the box, you  
should find the following items with  
your spray gun:  
Model H8224 Inventory (Figure 1) Qty  
A. Cup 120cc.......................................... 1  
B. Multi-Wrench...................................... 1  
C. Cleaning Brush .................................. 1  
D. Barbed Hose Fitting w/Nut................. 1  
E. Plastic Filters...................................... 2  
Note: One of the plastic filters may  
come pre-installed in the spray gun.  
Figure 2. Installing filter.  
2. Attach the cup to the gun body as  
shown in Figure 3.  
B
A
Cup  
Connection  
Point  
D
C
Gun Body  
E
Figure 1. Inventory components shipped  
Air Fitting  
with Model H8224.  
Figure 3. Cup installed.  
-4-  
Model H8224 HVLP Spray Gun  
 
3. Install and tighten the barbed hose  
Controls  
fitting to the air inlet with the provided  
1
nut; or attach a female 4" NPT quick  
connect fitting (not included) to the air  
inlet for connection to an air coupler.  
Atomizing Cap  
Cup  
1
Note: Using a 4" NPT quick discon-  
Fluid Control  
nect set-up, will make operation and  
maintenance tasks easier.  
4. Attach the spray gun to an air hose  
regulated between 44 and 58 PSI.  
Pattern Control  
Note: For the best results, use a hose  
that will be dedicated for spray use  
only. Do not use a hose that has been  
used with an in-line oiler or other pos-  
sible contaminant.  
Trigger  
Air Flow Control  
Figure 4. Controls.  
If you need additional help with this assem-  
bly, call our Technical Support at: (570)  
546-9663.  
Fluid Control: Controls the volume of  
material that travels through the fluid  
tip.  
Pattern Control: Adjusts the spray  
pattern from a round pattern to a wide  
fan.  
Atomizing Cap: Controls the spray  
pattern from vertical to horizontal.  
Trigger: Squeeze the trigger half way  
to blow air, or squeeze all the way to  
spray.  
Air Flow Control: Controls the fluid  
pressure inside the spray gun.  
Cup: Holds up to 120cc of material for  
spraying.  
Model H8224 HVLP Spray Gun  
-5-  
 
OPERATIONS  
Spraying  
The Model H8224 HVLP spray gun set  
is designed to spray a wide variety of  
materials such as lacquers, stains, prim-  
ers, multi-component paints, clear coats,  
acrylics, epoxies etc. It is ideal for auto  
body and woodworking projects.  
EXPLOSION HAZARD!  
DO NOT smoke or allow any source  
of flame or spark near spraying.  
Vapors will explode if ignited.  
To use your spray gun:  
1. Read and follow the material manufac-  
turer's instructions for spraying, mixing,  
safety, disposal, and any other instruc-  
tion on the label or Material Safety Data  
Sheet (MSDS).  
2. Ensure the cup is securely tightened  
and all other fittings are secure to avoid  
air leaks or material spills.  
EYE AND RESPIRATORY HAZARD!  
Always wear ANSI approved goggles  
and a NIOSH approved respirator  
when using spray equipment. Failure  
to protect yourself can lead to severe  
eye/lung injuries.  
3. Set the inlet air pressure (the air com-  
ing to the spray gun) to the lowest pres-  
sure recommended in Specifications  
on Page 3 or to the material manufac-  
turer's recommendations.  
4. Adjust the atomizing cap to vertical or  
horizontal. See Atomizing Cap and  
Fan Adjustments on Page 8 for fur-  
ther explanation.  
5. Fill the cup with material.  
6. Trial-and-error are necessary to  
achieve the results you want along with  
a fair amount of practice. Test your  
material flow and spray pattern on a  
piece of cardboard or some scrap of  
material similar to your project.  
TOXIC FUMES!  
Only spray in well ventilated areas  
or an approved spray booth. NEVER  
spray in a confined space where  
toxic fumes and flammable vapors  
can accumulate to deadly levels.  
-6-  
Model H8224 HVLP Spray Gun  
 
7. Adjust the fluid control knob to start  
with a low volume of material and keep  
the atomization as low as possible.  
You will need to use a combination of  
fluid control, inlet air pressure, air flow  
control and stroke speed to achieve the  
results you want. Spray so the material  
wets out nicely without running or sag-  
ging.  
10. Begin spraying 2-3 inches before the  
work and continue to the end of the  
work. Continue the motion for a few  
inches past the work until you are  
ready for the return stroke.  
11. Maintain an even speed when spray-  
ing.  
12. Overlap each stroke by 50%. This will  
ensure even coverage as shown in  
Figure 6. Overlapping less than 50%,  
as shown in the figure to the right,  
may lead to missed spots or streaky  
results.  
8. Use the pattern control knob to adjust  
the spray fan to your desired pattern.  
9. Keep the gun tip perpendicular, parallel  
and 6"-12" from the work at all times  
when spraying, as shown in Figure  
5. Do not allow your wrist to bend.  
This will cause the gun to arc across  
the surface and distribute the material  
unevenly, possibly creating sags and  
dry spots.  
No  
Yes  
 
�  
Figure 6. Overlap technique.  
13. The spray stroke should have even con-  
sistency and parallel edges. If it doesn't,  
please refer to Troubleshooting on  
Page 12.  
Figure 5. Spray technique.  
NOTICE  
Tipping the spray gun may cause  
material to spill out of the cup. Always  
hold the spray gun perpendicular to  
the ground to avoid potential spills  
and feed problems.  
CONTAMINATION HAZARD!  
Disposeofpaintwasteinaresponsible  
manner! Follow manufacturer's  
recommendations and local laws  
regarding disposal.  
Model H8224 HVLP Spray Gun  
-7-  
 
Atomizing Cap and  
Fan Adjustments  
Pattern  
Stroke  
The atomizing cap can be adjusted for  
horizontal or vertical spraying patterns.  
Spraying in the wrong direction may lead  
to material build up on the atomizing cap  
horn. Many performance problems are  
caused by clogged atomizing holes on the  
atomizing cap horns (see Cleaning on  
Page 10).  
Pattern  
Control  
Figure 8. Set up for horizontal spray stroke  
with vertical fan pattern.  
Rotating the pattern adjustment knob (see  
Figure 4) changes the shape of the spray  
pattern from a wide spray to a narrow  
spray, as shown in Figure 9.  
Stroke  
Pattern  
Pattern  
Control  
Figure 7. Set up for vertical stroke  
direction with horizontal fan pattern.  
Figure 9. Fan adjustment.  
-8-  
Model H8224 HVLP Spray Gun  
 
ACCESSORIES  
H7274—Campbell Hausfeld™ Pressure  
G6261—Campbell Hausfeld™ Water  
Regulator  
Filter  
Since PSI drops as it travels through air  
hose, attaching a regulator directly to the  
spray gun ensures accurate air regulation  
for the best results possible. Provides  
regulated output pressure of 0 to 125 PSI  
for proper tool operation. Locking pressure  
knob prevents accidental adjustments. 15  
SCFM flow capacity @ 90 PSI. 14" NPT.  
Filtering out water and oil before it reaches  
the spray gun is critical for high quality  
spraying results. This filter is rated at 150  
1
PSI maximum air pressure, and has a 4  
NPT air inlet.  
"
Figure 10. G6261 Campbell Hausfeld™  
water filter.  
G8114—38" x 25 Ft. Air Hose  
G8115—38" x 50 Ft. Air Hose  
G8116—38" x 100 Ft. Air Hose  
Figure 12. H7274 Campbell Hausfeld™  
pressure regulator.  
H3275—14" NPT x 25' Recoil Hose  
H3276—14" NPT x 50' Recoil Hose  
These recoil hoses are great dedicated air  
hoses because they are extremely light  
weight and maneuverable, which makes  
hours of spraying less tiring on wrists and  
arms.  
We recommend dedicating an air hose for  
spraying use only, keeping it clean and  
free of water and oil by using a filter on the  
incoming end. Multi-purpose red rubber  
air hose is flexible and abrasion resistant.  
Features 200 PSI rating, 800 PSI bursting  
strength, and 14" NPT ends.  
Figure 11. Red rubber air hose.  
Figure 13. H3275 Coil Hose.  
Model H8224 HVLP Spray Gun  
-9-  
 
MAINTENANCE  
5. Unscrew the atomizing cap and the  
Cleaning  
fluid tip. The fully disassembled gun  
should look like Figure 14.  
Proper cleaning is the best way to ensure  
trouble free performance from your spray  
gun. If your gun is not thoroughly cleaned,  
damage and poor spraying will result.  
Problems caused by improper cleaning will  
not be covered by the warranty. Clean the  
spray gun immediately after each use.  
6. Rinse all parts thoroughly in solvent,  
then dry with compressed air or let  
air dry. Try not to expose O-rings to  
solvent or they may get damaged.  
Note: If the small holes in the atomiz-  
ing cap become blocked, soak in clean  
solvent. If the blockage still exists,  
clear the blockage with a small needle,  
taking great care to not enlarge or  
damage the hole. Damage to the hole  
will create a disrupted spray pattern.  
To clean your spray gun:  
1. Empty the cup and spray a small  
amount of solvent through the gun.  
Note: If you are spraying on a regular  
basis, spraying solvents into the air  
may be illegal. A cabinet style spray  
gun cleaner may be required.  
7. Use the cleaning brush with solvent to  
clean the inner orifice and other hard  
to reach areas on the outside of the  
spray gun body.  
2. DISCONNECT SPRAY GUN FROM  
8. Wipe the gun body with a lint free  
cloth and lubricate parts (see Page 11)  
before re-assembly.  
AIR!  
3. Remove the cup and cup lid.  
4. Disassemble the gun by unscrewing  
the fluid control knob then remove the  
spring and needle.  
EXPLOSION HAZARD!  
Chlorinated Solvents like 1,1,1-  
Atomizing Cap  
Cup  
Tricloroethane  
and  
Methylene  
Chloride (methyl chloride) can chem-  
ically react with aluminum spray gun  
parts and explode. Read solvent  
label carefully to avoid using solvent  
with these chemicals.  
Spring  
Fluid Tip  
NOTICE  
DO NOT soak the spray gun body in  
solvent. Prolonged exposure to sol-  
vent will rapidly deteriorate the spray  
gun washers and seals. Ignoring this  
notice will void your warranty.  
Needle  
Knob  
Figure 14. Disassembly for cleaning.  
-10-  
Model H8224 HVLP Spray Gun  
 
Lubrication  
Lubricate the following areas with a non-  
silicon spray-gun lubricant after cleaning.  
A
B
D
A. Atomizing Cap Threads  
B. Air Valve Packing  
C. Trigger Pin  
D. Pattern Control  
E. Fluid Control Knob  
F. Air Flow Control Knob  
E
C
Allow the lubricant to coat threads, and run  
into gun body to lubricate all moving parts  
and seals.  
F
Figure 15. General lubrication points.  
Model H8224 HVLP Spray Gun  
-11-  
 
Troubleshooting  
Symptom  
Possible Cause  
Solution  
Fluttering or spitting 1. Dry or worn fluid tip seat per-  
1. Tighten fluid tip or replace  
seat with new one.  
spray.  
mits air to seep into fluid pas-  
sage.  
2. Material level too low.  
3. Fluid tip or filter obstructed.  
4. Dry needle packing.  
2. Add material.  
3. Clean.  
4. Lubricate needle.  
Uneven top or bot-  
tom pattern.  
1. Atomizing cap holes are  
obstructed.  
2. Build-up on top or bottom of  
fluid tip.  
1. Clear holes.  
2. Clean.  
3. Build-up on atomizing cap is  
on needle seat.  
3. Clean.  
Right or left arc  
pattern.  
1. Left or right side horn holes  
are plugged.  
1. Clear holes.  
2. Build-up on left or right side of 2. Clean.  
fluid tip.  
3. Build-up of material inside  
atomizing cap.  
3. Clean.  
Heavy deposit of  
material in center.  
1. The material flow exceeds the 1. Lower fluid flow.  
atomizing cap capacity.  
2. Inlet air pressure is too low.  
3. Material is too thick.  
2. Increase inlet air pressure.  
3. Thin material.  
Narrow center pat-  
tern.  
1. Volume control turned in too  
far.  
1. Increase volume.  
2. Inlet air pressure too high.  
3. Fluid pressure is too low.  
4. Material is too thin.  
2. Reduce inlet air pressure.  
3. Increase fluid pressure.  
4. Adjust material.  
No spray output.  
1. No pressure at gun.  
2. Fluid passages dirty.  
1. Check air supply.  
2. Clean gun, remove any  
obstructions.  
3. Fluid control closed.  
4. Out of paint.  
3. Open.  
4. Refill.  
5. Material too thick.  
5. Thin to manufacturer's rec-  
ommendations.  
-12-  
Model H8224 HVLP Spray Gun  
 
Symptom  
Possible Cause  
Solution  
Excessive over-  
spray.  
1. Fluid pressure too high.  
2. Gun is too far from surface.  
1. Reduce fluid pressure.  
2. Keep gun at recommended  
distance.  
3. Spraying too fast.  
3. Slow down and maintain  
consistent, even parallel  
stroke.  
Unable to control  
spray fan.  
1. Pattern adjustment screw is  
not seating properly.  
1. Clean or replace.  
2. Atomizing cap is loose.  
2. Tighten atomizing cap.  
1. Replace damaged seals.  
Runs and sags.  
1. Damaged seal.  
Material leaks from 1. Cap not secure.  
cup. 2. Cup not tight on gun body.  
3. Leaking from cap vent hole.  
1. Tighten.  
2. Tighten.  
3. Hold gun upright; do not tilt.  
Material leaks from 1. Fluid tip loose.  
1. Tighten.  
gun.  
2. Dry or damaged seals.  
3. Excessive pressure.  
2. Replace seals.  
3. Reduce pressure.  
Thick dimpled fin-  
ish: orange peel  
appearance.  
1. Holding gun too close to sur-  
face.  
2. Inlet air pressure too low.  
3. Material not properly mixed.  
1. Spray at recommended dis-  
tance.  
2. Check inlet air pressure.  
3. Follow manufacturer's  
instructions.  
4. Surface is dirty or oily.  
4. More surface prep is  
required.  
Dry Spray.  
1. Inlet air pressure too high.  
2. Gun too far from surface.  
1. Lower inlet air pressure.  
2. Keep gun at recommended  
distance.  
3. Gun stroke too fast.  
3. Slow down and maintain  
consistent even parallel  
stroke.  
Gun leaks from  
fluid tip.  
1. Debris will not let the needle  
seat with the fluid tip.  
1. Clean or replace both.  
Contaminated  
paint: fish eye  
appearance.  
1. Water or oil in the air line.  
1. Install an in-line air filter.  
2. Replace air line.  
Model H8224 HVLP Spray Gun  
 
-13-  
Parts Breakdown H8224  
 
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REF PART #  
DESCRIPTION  
REF PART #  
DESCRIPTION  
1
PH8224001 AIR ADJUST SCREW  
PH8224002 AIR ADJUST KNOB  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
PH8224026 TRIGGER PIN II  
PH8224027 TRIGGER  
2
3
PORS003  
O-RING 2.5 X 1.5 S3  
PEC01M  
E-CLIP 3MM  
4
PH8224004 DOMED SEAL WASHER  
PH8224005 AIR INLET SPRING  
PH8224006 AIR INLET VALVE  
PH8224007 SWITCH SPRING  
PH8224008 AIR VALVE ASSEMBLY  
PH8224009 FOAM WASHER  
PH8224029 CUP LID  
5
PH8224030 CUP 120CC  
PH8224031 PLASTIC FILTER  
6
7
PH8224032 FLUID INLET JOINT  
8
PH8224033 FLUID ADJUST NEEDLE  
PH8224034 FLUID NEEDLE SPRING  
PH8224035 FLUID ADJUST LOCK NUT  
PH8224036 FLUID ADJUST KNOB  
PH8224037 FLAT HD SCR M2.5-.45 X 8  
PH8224038 PATTERN ADJUST KNOB  
PH8224039 PATTERN ADJUST SCREW  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
PORS005  
O-RING 4.5 X 1.5 S5  
PH8224011 SWITCH KNOB  
PH8224012 SWITCH WASHER  
PH8224013 DIRECTION SCREW  
PH8224014 ATOMIZATION CAP NUT  
PH8224015 ATOMIZATION CAP WASHER  
PH8224016 ATOMIZATION CAP  
PH8224017 STEEL BALL  
PORS003  
PEC16M  
O-RING 2.5 X 1.5 S3  
E-CLIP 2.5MM  
PH8224042 PATTERN ADJUST NUT  
PH8224043 GUN BODY  
PORS018  
O-RING 17.5 X 1.5 S18  
PH8224019 FLUID NOZZLE  
PH8224044 AIR INLET JOINT  
PH8224020 FLUID NOZZLE WASHER  
PH8224021 DIRECTION SCREW  
PH8224022 NEEDLE WASHER  
PH8224023 FOAM WASHER  
PH8224045 O-RING REPAIR KIT  
PH8224046 BARBED HOSE FITTING  
PH8224047 FLARE NUT 1/4" NPT  
PH8224048 PIPE CLEANER BRUSH  
PH8224049 M-WRENCH 7/8/10/12/13/16  
PH8224024 COMPRESSION SPRING  
PH8224025 TRIGGER PIN I  
-14-  
Model H8224 HVLP Spray Gun  
 
 

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