Grizzly Paint Sprayer H7668 User Manual

PROFESSIONAL SPRAY SET  
W/ TWO QUART PRESSURE CUP  
MODEL H7668  
INSTRUCTION MANUAL  
COPYRIGHT © JULY, 2005 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.  
#PC7424 PRINTED IN CHINA  
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Table of Contents  
SECTION 1: SAFETY.......................................................................................................4  
Safety Instructions for Pneumatic Tools.....................................................................5  
Additional Safety Instructions for Spray Guns............................................................6  
SECTION 2: INTRODUCTION .........................................................................................7  
Foreword.....................................................................................................................7  
Tool Data....................................................................................................................7  
Contact Info ................................................................................................................7  
SECTION 3: SET UP........................................................................................................8  
Unpacking...................................................................................................................8  
Inventory.....................................................................................................................8  
Assembly ....................................................................................................................9  
Controls ....................................................................................................................10  
SECTION 4: OPERATIONS...........................................................................................11  
Spraying....................................................................................................................11  
Atomizing Cap and Fan Adjustments.......................................................................13  
SECTION 5: ACCESSORIES.........................................................................................14  
SECTION 6: MAINTENANCE ........................................................................................15  
Cleaning....................................................................................................................15  
Lubrication ................................................................................................................17  
Troubleshooting........................................................................................................18  
Parts Breakdown ......................................................................................................20  
Parts Breakdown ......................................................................................................21  
WARRANTY AND RETURNS........................................................................................22  
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-3-  
SECTION 1: SAFETY  
For Your Own Safety Read Instruction Manual  
Before Operating This Equipment  
The purpose of safety symbols is to attract your attention to possible hazard-  
ous conditions. This manual uses a series of symbols and signal words which  
are intended to convey the level of importance of the safety messages. The  
progression of symbols is described below. Remember that safety messages by  
themselves do not eliminate danger and are not a substitute for proper accident  
prevention measures.  
Indicates an imminently hazardous situation which, if  
not avoided, WILL result in death or serious injury.  
Indicates a potentially hazardous situation which, if  
not avoided, COULD result in death or serious injury.  
Indicates a potentially hazardous situation which, if  
not avoided, MAY result in minor or moderate injury.  
It may also be used to alert against unsafe practices.  
This symbol is used to alert the user to useful infor-  
NOTICE  
mation about proper operation of the equipment.  
Safety Instructions For Pneumatic Tools  
5. KEEP CHILDREN AND VISITORS  
AWAY. All children and visitors  
should be kept at a safe distance  
from work area.  
1. KEEP ALL SAFETY DEVICES IN  
PLACE and in working order.  
2. REMOVE ADJUSTING KEYS AND  
WRENCHES. Form habit of check-  
ing to see that keys and adjusting  
wrenches are removed from tool  
before operation.  
6. MAKE  
WORKSHOP  
CHILD  
PROOF by locking your shop and  
shutting off air valves.  
7. DO NOT FORCE TOOL. It will do  
the job better and safer at the rate  
for which it was designed.  
3. KEEP WORK AREA CLEAN.  
Cluttered areas and benches invite  
accidents.  
8. USE THE RIGHT TOOL. Do not  
force tool or attachment to do a job  
for which it was not designed.  
4. DO NOT USE IN DANGEROUS  
ENVIRONMENT. Do not use pneu-  
matic tools in damp or wet loca-  
tions, or where any flammable or  
noxious fumes may exist. Keep  
work area well lighted.  
9. DO NOT USE UNDER THE  
INFLUENCE OF DRUGS OR  
ALCOHOL.  
-4-  
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Safety Instructions for Pneumatic Tools  
17. DISCONNECT TOOLS before ser-  
vicing, changing accessories, or  
moving to another location.  
10. USE PROPER AIR HOSE for the  
tool. Make sure your air hose is in  
good condition and is long enough to  
reach your work without stretching.  
18. DO NOT OVERREACH. Keep  
proper footing/balance at all times.  
11. WEAR PROPER APPAREL. Do not  
wear loose clothing, gloves, neck-  
ties, rings, bracelets, or other jew-  
elry which may get caught in moving  
parts. Non-slip footwear is recom-  
mended. Wear a protective hair cov-  
ering to contain long hair.  
19. USE  
THE  
RECOMMENDED  
ACCESSORIES. Consult owner’s  
manual for recommended acces-  
sories. The use of improper acces-  
sories may cause risk of injury.  
20. CHECK FOR DAMAGED PARTS  
BEFORE USING. Check for bind-  
ing and alignment of parts, broken  
parts, part mounting, loose bolts,  
and any other conditions that may-  
affect machine operation. Repair or  
replace damaged parts.  
12. ALWAYS USE SAFETY GLASSES.  
Also use a face or dust mask if cut-  
ting operation is dusty. Everyday  
eyeglasses only have impact resis-  
tant lenses, they are NOT safety  
glasses.  
13. WEAR APPROVED HEARING  
PROTECTION. Air escaping from  
pneumatic tools can exceed safe  
exposure limits and may cause  
hearing damage with prolonged  
exposure.  
21. NEVER LEAVE UNATTENDED  
TOOL CONNECTED TO AIR.  
Disconnect the air hose and do not  
leave tool until it is relieved of any  
built up pressure.  
22. NEVER ALLOW UNTRAINED  
USERS TO USE THIS TOOL  
WHILE UNSUPERVISED.  
14. SECURE WORK. Use clamps or a  
vise to hold work when practical. It is  
safer than using your hand and frees  
both hands to operate tool.  
23. IF YOU ARE UNSURE OF THE  
INTENDED OPERATION, STOP  
USING TOOL. Seek formal training  
or research books or magazines  
that specialize in pneumatic tools.  
15. MAINTAIN TOOLS WITH CARE.  
Keep tools lubricated and clean  
for best and safest performance.  
Follow instructions for lubricating  
and changing accessories.  
24. BE AWARE OF HOSE LOCATION  
WHEN  
USING  
PNEUMATIC  
16. REDUCE  
THE  
RISK  
OF  
TOOLS. Hoses can easily become  
a tripping hazard when laid across  
the floor or spread out in a disorga-  
nized fashion.  
UNINTENTIONAL STARTING. Do  
not carry tool with hand on trig-  
ger and always disconnect from air  
when not in use.  
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Additional Safety Instructions for Spray Guns  
9. 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.  
1. READ THIS MANUAL. This manual  
contains proper operating instruc-  
tions for this spray gun.  
2. READ  
MATERIAL  
LABELS  
and MATERIAL SAFETY DATA  
SHEETS (MSDS). Read and know  
all the instructions on the packag-  
ing label and the MSDS before  
opening the package. This informa-  
tion could save your life.  
10. STORAGE. Thoroughly clean and  
dry spray gun before storage. Store  
in an approved cabinet.  
11. SOLVENTS. Always store solvents  
and shop towels soaked in solvent  
in approved containers.  
3. ALWAYS WEAR  
A
NIOSH  
APPROVED  
RESPIRATOR  
WHEN SPRAYING OR WORKING  
AROUND FINISHING MATERI-  
ALS.  
12. EYE PROTECTION. Wear eye pro-  
tection whenever spraying or clean-  
ing. Solvents and chemicals can  
cause serious eye injury, which  
could lead to blindness.  
4. FIRE EXTINGUISHERS. Always  
have a fully charged multi class  
or class B fire extinguisher in the  
immediate area.  
13. OPERATING PRESSURE. DO  
NOT exceed the recommended  
inlet air pressure. Excessive pres-  
sure could cause the spray gun to  
burst or cause other internal equip-  
ment damage.  
5. FLAMMABLE MATERIAL. NEVER  
spray near open flame or where  
any spark could occur.  
6. FRESH AIR. Always provide ade-  
quate exhaust to keep area free of  
built up vapors, NEVER spray in an  
enclosed space.  
14. LOCAL LAWS. Consult local  
authorities regarding V.O.C. exhaust  
and waste disposal requirements.  
15. DEPRESSURIZE TANK. Make  
sure tank is fully depressurized  
before removing lid.  
7. DISCONNECT COMPRESSED  
AIR. Always disconnect the spray  
gun from compressed air before  
cleaning, changing attachments or  
when performing maintenance of  
any kind on this tool.  
16. HOSES. Be aware of hoses to  
avoid tripping.  
8. PROTECTIVE CLOTHING. Protect  
exposed skin from overspray by  
wearing a protective suit or other  
approved garment.  
-6-  
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SECTION 2: INTRODUCTION  
Foreword  
Contact Info  
If you have any comments regarding this  
manual, please write to us at the following  
address:  
We are proud to offer the Grizzly Model  
H7668 Spray Gun. This model is part  
of a growing Grizzly family of fine tools.  
When used according to the guidelines set  
forth in this manual, you can expect years  
of trouble-free, enjoyable operation, and  
proof of Grizzly’s commitment to customer  
satisfaction.  
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.  
The Model H7668 is designed to be used  
for bigger jobs where large volumes of  
material are needed and greater painter  
mobility is required. The two quart capacity  
allows the painter to spray with one hand  
and carry the pressure cup with the other.  
Grizzly Industrial, Inc.  
1203 Lycoming Mall Circle  
Muncy, PA 17756  
Phone: (570) 546-9663  
Fax: (800) 438-5901  
It is our pleasure to provide this manual  
with the Model H7668. It was written  
to encourage safety considerations and  
guide you through general operating pro-  
cedures and maintenance.  
The specifications, details, and photo-  
graphs in this manual represent the Model  
H7668 as supplied when the manual was  
prepared. However, owing to Grizzly’s pol-  
icy of continuous improvement, changes  
may be made at any time with no obliga-  
tion on the part of Grizzly.  
Tool Data  
Type..................................Pressurized Cup  
Fluid Tip.......................................... 1.4 mm  
Air Consumption............................8.8 CFM  
Inlet Air Pressure........2-3 Bar /29-43.5 PSI  
Air Hose Inlet..................................14" NPT  
Fluid Hose Inlet...............................38" NPS  
Material Capacity................................. 2 qt.  
Read the manual before operation.  
Become familiar with this spray gun,  
its safety instructions, and its opera-  
tion before beginning any work.  
Serious personal injury may result if  
safety or operational information is  
not understood or followed.  
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SECTION 3: SET UP  
Inventory  
Unpacking  
After you have unpacked the carton you  
should find the following:  
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.  
Model H7668 Inventory (Figure 1)  
A. Pressure Cup .................................... 1  
B. Spray Gun.......................................... 1  
C. Hook/Handle ...................................... 1  
D. Air & Fluid Hose................................. 1  
E. Tool Kit (not shown)........................... 1  
—Service Wrench.............................. 1  
—Cleaning Brush............................... 1  
Save the containers and all packing materi-  
als for possible inspection by the carrier or  
its agent. Otherwise, filing a freight claim  
can be difficult.  
When you are completely satisfied with  
the condition of the shipment, you should  
inventory the equipment.  
A
B
D
C
Figure 1. Model H7668 inventory.  
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3
3. Attach the other end of the  
8" fluid  
3
hose to the 8" fluid inlet on the spray  
Assembly  
gun body (see Figure 4).  
1. Attach the hook/handle on the cap  
with 19mm and 14mm wrenches (see  
Figure 2).  
Figure 4. Attaching fluid hose to spray  
gun.  
1
1
4. Attach the  
4" air hose to the  
4" air  
outlet on the cap (see Figure 5).  
Figure 2. Installing hook/handle.  
3
3
2. Attach the  
8" fluid hose to the  
8
"
Fluid Hose  
outlet on the cap (see Figure 3).  
Note: Make sure all hose connections  
are tight enough to prevent air leaks.  
Air Hose  
Figure 5. Air hose installed.  
1
5. Attach the other end of the  
4" air  
1
hose to the 4" air inlet on the spray  
gun body (see Figure 6).  
Figure 3. Installing fluid hose.  
Figure 6. Attaching hose to spray gun.  
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6. Attach the compressed air line to the  
air inlet as shown in Figure 7. How-  
ever, wait until you have mixed your  
paint material and are ready to spray  
to complete this step (see Spraying  
on Page 11.  
Controls  
Pattern Control  
Atomizing Cap  
1
Note: Using a 4" NPT quick discon-  
nect set-up on the inlet air line (not  
included and not shown), will make  
operation and maintenance tasks  
easier.  
Fluid Control  
Trigger  
Note: For the best results, use a filter  
that will extract water and oil contami-  
nants and a hose that will be dedi-  
cated for spray use only. Do not use  
a hose that has been used with an  
in-line oiler or other possible contami-  
nant.  
Figure 8. Controls.  
1. Fluid Control: Controls the volume of  
material that travels through the fluid  
tip.  
2. Pattern Control: Adjusts the spray  
pattern from a round pattern to a wide  
fan.  
If you need additional help with this assem-  
bly, call our Technical Support at: (570)  
546-9663.  
3. Atomizing Cap: Controls the spray  
pattern from vertical to horizontal.  
4. Trigger: Two stage trigger. Stage  
one only releases compressed air for  
blowing off the work piece. Stage two  
sprays material.  
5. Pressure Control Knob: Controls  
the fluid pressure inside the spray  
gun.  
Air Inlet  
Figure 7. Compressed air inlet location.  
6. Safety Valve: Releases unsafe pres-  
sure build-up from pressure cup.  
Safety Valve  
Pressure Control Knob  
Figure 9. Pressure cup controls.  
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SECTION 4: OPERATIONS  
Spraying  
The Model H7668 spray system is designed  
to spray medium to high solid materials,  
like lacquers, stains, primers, multi-com-  
ponent paints, acrylics, epoxies etc. It is  
ideal for auto body, farm and commercial  
maintenance projects. It is not for use with  
any waterborne material.  
EXPLOSION HAZARD! DO NOT  
smoke or have any source of flame  
or spark near spraying. Vapors will  
To use your spray system:  
explode if ignited.  
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. After mixing, filter the material through  
a strainer while filling the pressure cup.  
(Strainers are available from your paint  
supplier.)  
RESPIRATORY HAZARD! Always use  
a NOISH approved respirator when  
using spray equipment. Failure to  
protect your lungs can lead to respi-  
ratory illness and nervous system  
damage.  
3. Fill the pressure cup 34 full or less. DO  
NOT OVERFILL. Overfilling will cause  
pressurization problems and contribute  
to leaks and spills.  
4. Tighten the cap securely on the pres-  
sure cup and ensure all other fittings  
are secure to avoid air leaks or material  
spills.  
5. Set the inlet air pressure (the air com-  
ing to the pressure cup) between 29  
and 43.5 PSI or to the material manu-  
facturer's recommendations. DO NOT  
exceed 50 PSI for any reason.  
TOXIC FUMES! Always use an  
approved spray booth or well ven-  
tilated area when spraying. NEVER  
spray in a confined space where  
toxic fumes and flammable vapors  
can accumulate to deadly levels.  
Note: Periodically pull the ring on the  
safety valve to ensure it moves freely.  
Do not use the pressure cup if the  
safety valve is not working!  
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6. Set the pressure control knob to regu-  
late the fluid pressure to the gun.  
Please follow material manufacturer's  
recommendations for this setting.  
 
�  
7. Adjust the atomizing cap to vertical or  
horizontal. See Atomizing Cap and  
Fan Adjustments on Page 13 for fur-  
ther explanation.  
8. 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.  
Figure 10. Spray technique.  
12. 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.  
9. 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.  
13. Maintain an even speed when spray-  
ing.  
14. Overlap each stroke by 50%. This will  
ensure even coverage as shown in  
Figure 11. Less than 50% as shown  
in the figure to the right may lead to  
missed spots or streaky results.  
10. Use the pattern control knob to adjust  
the spray fan to your desired pattern.  
11. Keep the gun tip perpendicular, parallel  
and 8-10" from the work at all times  
when spraying as shown in Figure  
10. 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 11. Overlap technique.  
15. Spray stroke should have even consis-  
tency and parallel edges. If it doesn't  
please refer to Troubleshooting on  
Page 18.  
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Atomizing Cap and  
Fan Adjustments  
Stroke  
The atomizing cap needs to 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 15).  
Figure 13. Set up for vertical spray stroke  
with horizontal fan pattern.  
Rotating the pattern adjustment knob in  
Figure 14 will give you a range between  
the two patterns in Figure 15.  
Pattern Adjustment Knob  
Holes  
Stroke  
Figure 12. Set up for horizontal stroke  
direction with vertical fan pattern.  
Figure 14. Pattern adjustment knob.  
Figure 15. Fan patterns.  
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SECTION 5: ACCESSORIES  
G6261—Campbell Hausfeld™ Water  
Filter  
H7274—Campbell Hausfeld™ Pressure  
Regulator  
Remove damaging water vapor before it  
reaches your pneumatic tools. This highly  
effective, five micron filter features a see  
through bowl and easy in-line connections.  
150 PSI maximum air pressure. 14" NPT.  
Mini Series. 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.  
Figure 18. H7274 Campbell Hausfeld™  
Figure 16. G6261 Campbell Hausfeld™  
pressure regulator.  
water filter.  
G8114—38" x 25 Ft. Air Hose  
H3174—Air Blow Gun with 2 Tips  
This air blow gun includes a safety tip and  
G8115—38" x 50 Ft. Air Hose  
G8116—38" x 100 Ft. Air Hose  
Multi-purpose red rubber air hose is flex-  
ible and abrasion resistant. Rated for 200  
rubber tip for all normal air cleaning jobs.  
1
4" NPT .  
PSI, this air hose has a bursting strength  
1
of 800 PSI  
4" NPT ends.  
Figure 19. H3174 Air Blow Gun with 2  
Tips.  
Figure 17. Red rubber air hose.  
-14-  
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SECTION 6: MAINTENANCE  
Cleaning  
HEALTH  
&
CONTAMINATION  
Proper cleaning is the best way to ensure  
trouble free performance from your spray  
system. If your system is not thoroughly  
cleaned, damage and poor spraying will  
result. Problems caused by improper clean-  
ing will not be covered by the warranty.  
Clean the spray gun, hose and pressure  
cup immediately after each use.  
HAZARD! Dispose of paint waste  
in a responsible manner! Follow  
manufacturer's recommendations  
and local laws regarding disposal.  
Failure to comply will result in con-  
tamination and possibly large fines  
and penalties.  
2. Unscrew the cap and empty the pres-  
sure cup contents into an approved  
receptacle.  
To clean your spray system:  
1. Depressurize the cup by disconnecting  
from the compressed air and bleed  
the system by loosening (DO NOT  
REMOVE) the pressure relief valve  
until "zero" pressure is recorded on the  
pressure cup gauge (see Figure 20).  
EXPLOSION HAZARD! Chlorinated  
Solvents like 1,1,1-Tricloroethane  
and Methylene Chloride (methyl  
chloride) can chemically react with  
aluminum and may explode. Many  
parts in spray guns and pressure  
cups are made of aluminum. Read  
your solvent label carefully before  
using solvent.  
EXPLOSION HAZARD! Do not  
unscrew pressure cup lid while  
under pressure! Exploding paint  
material and solvents could cause  
serious injury!  
3. Clean pressure cup with solvent.  
4. Add clean solvent to pressure cup,  
replace the lid and repressurize.  
5. Spray the gun until the fluid sprays  
clear to clean the fluid hose.  
Note: Check local laws regarding this  
practice. If you are spraying on a regu-  
lar basis, spraying solvents into the air  
may be illegal. A closed system cleaner  
may be required.  
Pressure Relief Valve  
Figure 20. Pressure relief valve.  
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6. Depressurize the system as explained  
in Step 1.  
10. 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 and pressure cup  
cap.  
7. Disassemble the gun by disconnecting  
the hoses, unscrewing the fluid control  
knob, and removing the spring and  
needle.  
11. Wipe the rest of the gun body and  
pressure cup cap with a lint free shop  
towel and dry.  
8. Unscrew the atomizing cap with your  
fingers and the fluid tip with the ser-  
vice wrench. The fully disassembled  
gun should look like Figure 21.  
12. Hang the hose to dry and dry the pres-  
sure cup with a lint free shop towel.  
Fluid Tip  
NOTICE  
Needle  
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.  
Atomizing  
Spring  
Cap  
Fluid Control  
Knob  
NOTICE  
Figure 21. Disassembly for cleaning.  
DO NOT soak the pressure cup cap in  
solvent. Soaking in solvent will dam-  
age safety valve and regulator parts.  
Ignoring this notice will void your  
warranty.  
9. Rinse these parts thoroughly in sol-  
vent then dry with compressed air or  
let air dry.  
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.  
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Lubrication  
E
A
D
B
Figure 23. Control knob lubrication.  
C
Figure 22. Lubrication points.  
Lubricate the following areas in Figures  
22-24 with a non-silicon spray gun lubri-  
cant lube after each cleaning.  
F
A. Atomizing Cap Threads  
B. Air Valve Packing  
C. Trigger Pin  
D. Fluid Control Knob  
E. Pattern Control Knob  
F. Pressure Control Knob  
Figure 24. Pressure control threads.  
Allow the lubricant to coat threads, and run  
into gun body to lubricate all moving parts  
and seals.  
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Troubleshooting  
Symptom  
Possible Cause  
Solution  
Fluttering or  
Spitting spray.  
1. Dry or worn fluid tip seat per-  
mits air to seep into fluid pas-  
sage.  
1. Tighten fluid tip or replace  
seat with new one.  
2. Material level too low.  
2. Add material.  
3. Fluid tip or strainer obstructed. 3. Clean  
4. Dry needle packing.  
4. Lubricate needle.  
Uneven top or bot-  
tom pattern.  
1. Atomizing cap holes are  
obstructed.  
1. Clear holes.  
2. Build-up on top or bottom of  
fluid tip.  
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.  
2. Reduce inlet air pressure.  
3. Increase fluid pressure.  
4. Adjust material.  
3. Fluid pressure is too low.  
4. Material is too thin.  
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.  
-18-  
Model H7668 Spray Gun w/Pressure Cup  
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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.  
pressure cup. 2. Hose connections not tight.  
3. Leaking from cap vent hole.  
1. Tighten.  
2. Tighten.  
3. Hold gun upright do not tilt.  
Material leaks from 1. Fluid tip loose.  
gun. 2. Fluid hose connection is not  
1. Tighten.  
2. Tighten.  
tight.  
3. Dry or damaged seals.  
4. Excessive pressure.  
3. Replace seals.  
4. Reduce pressure.  
Thick dimpled finish 1. Holding gun too close to sur-  
1. Spray at recommended dis-  
tance.  
aka "Orange Peel."  
face.  
2. Inlet air pressure too low.  
3. Material not properly mixed.  
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.  
Excess pressure in 1. Safety valve not working.  
pressure cup.  
1. Discontinue use!  
2. Relieve pressure.  
3. Replace safety valve.  
Contaminated  
paint, aka "Fish  
Eyes.  
1. Water or oil in the air line.  
1. Install an in-line air filter.  
2. Replace air line.  
Model H7668 Spray Gun w/Pressure Cup  
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-19-  
Parts Breakdown  
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-20-  
Model H7668 Spray Gun w/Pressure Cup  
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Parts Breakdown  
REF PART #  
DESCRIPTION  
REF PART #  
DESCRIPTION  
1
PH7668001 POT BOTTOM  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
PH7668026 FLUID CONTROL SCREW  
PH7668027 FLUID ADJ. SCREW  
PH7668028 PATTERN ADJ. SCREW  
PH7668029 O-RING  
2
PH7668002 CUP  
3
PH7668003 FLUID TUBE  
4
PH7668004 COVER  
5
PH7668005 RUBBER SPECIAL WASHER  
PH7668006 LATEX JAM  
PH7668030 PATTERN ADJ. KNOB  
PH7668031 SNAP RETAINER  
PH7668032 PATTERN ADJ. NEEDLE  
PH7668033 SNAP RETAINER  
PH7668034 TRIGGER  
6
7
PH7668007 COMPRESSION SPRING  
PH7668008 SPRING RELIEF VALVE  
PH7668009 PAINT INLET PLUG  
PH7668010 CENTERPOST  
PH7668011 FLUID OUTLET  
PH7668012 SPECIAL NUT  
PH7668013 NUT HANDLE  
PH7668014 REGULATOR ASSEMBLY  
PH7668015 SCREW  
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
PH7668035 TRIGGER PIN  
PH7668036 CONNECT SCREW  
PH7668037 SPECIAL WASHER  
PH7668038 HEAD  
PH7668039 FLUID NOZZLE  
PH7668040 AIR CAP  
PH7668016 CHECK VALVE  
PH7668017 COMPRESSION SPRING  
PH7668018 SPECIAL WASHER  
PH7668019 COMBO HOSE  
PH7668020 AIR INLET PLUG  
PH7668021 BLOCK  
PH7668041 DIRECTION SCREW  
PH7668042 SWITCH SPRING  
PH7668043 SWITCH PIPE  
PH7668044 SEALING WASHER  
PH7668045 SWITCH SEAT  
PH7668046 SPECIAL WASHER  
PH7668047 SPECIAL NUT  
PH7668048 BRUSH  
PH7668022 GUN BODY  
PH7668023 DIRECTION PIPE  
PH7668024 FLUID ADJ. NEEDLE  
PH7668025 SPECIAL WASHER  
PH7668049 SERVICE WRENCH  
Model H7668 Spray Gun w/Pressure Cup  
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-21-  
WARRANTY AND RETURNS  
Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original  
purchaser from the date of purchase. This warranty does not apply to defects due directly  
or indirectly to misuse, abuse, negligence, accidents, repairs or alterations or lack of  
maintenance. This is Grizzly’s sole written warranty and any and all warranties that may  
be implied by law, including any merchantability or fitness, for any particular purpose, are  
hereby limited to the duration of this written warranty. We do not warrant or represent that  
the merchandise complies with the provisions of any law or acts unless the manufacturer so  
warrants. In no event shall Grizzly’s liability under this warranty exceed the purchase price  
paid for the product and any legal actions brought against Grizzly shall be tried in the State  
of Washington, County of Whatcom.  
We shall in no event be liable for death, injuries to persons or property or for incidental,  
contingent, special, or consequential damages arising from the use of our products.  
To take advantage of this warranty, contact us by mail or phone and give us all the details.  
We will then issue you a “Return Authorization Number,” which must be clearly posted on  
the outside as well as the inside of the carton. We will not accept any item back without this  
number. Proof of purchase must accompany the merchandise.  
The manufacturers reserve the right to change specifications at any time because they  
constantly strive to achieve better quality equipment. We make every effort to ensure that  
our products meet high quality and durability standards and we hope you never need to  
use this warranty.  
Please feel free to write or call us if you have any questions about the machine or the  
manual.  
Grizzly Industrial, Inc.  
1203 Lycoming Mall Circle  
Muncy, PA 17756  
Phone: (570) 546-9663  
Fax: (800) 438-5901  
E-Mail:  
Thank you again for your business and continued support. We hope to serve you again  
soon!  
-22-  
Model H7668 Spray Gun w/Pressure Cup  
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WARRANTY CARD  
Name_________________________________________________________________  
Street_________________________________________________________________  
City _______________________ State_________________________ Zip _________  
Phone #____________________ Email ________________________ Invoice #_____  
Model # ____________________ Order #_______________________ Serial #______  
The following information is given on a voluntary basis. It will be used for marketing purposes to  
help us develop better products and services. All information is strictly confidential.  
1. How did you learn about us?  
____Advertisement  
____Friend  
____Catalog  
____Card Deck  
____Website  
Other:________________________  
2. Which of the following magazines do you subscribe to?  
____ Cabinet Maker  
____ Family Handyman  
____ Hand Loader  
____ Handy  
____ Home Shop Machinist ____ Precision Shooter  
____ Journal of Light Cont. ____ Projects in Metal  
____ Popular Mechanics  
____ Popular Science  
____ Popular Woodworking ____ Wooden Boat  
____ Practical Homeowner ____ Woodshop News  
____ Today’s Homeowner  
____ Wood  
____ Woodsmith  
____ Woodwork  
____ Live Steam  
____ Model Airplane News ____ Rifle  
____ Modeltec  
____ Old House Journal  
____ RC Modeler  
____ Woodworker West  
____ Woodworker’s Journal  
____ Other:  
____ Shop Notes  
____ Shotgun News  
3. What is your annual household income?  
____$20,000-$29,000  
____$30,000-$39,000  
____$40,000-$49,000  
____$70,000+  
____$50,000-$59,000  
____$60,000-$69,000  
4. What is your age group?  
____20-29  
____30-39  
____60-69  
____40-49  
____70+  
____50-59  
5. How long have you been a woodworker/metalworker?  
____0-2 Years ____2-8 Years ____8-20 Years  
____20+ Years  
6. How many of your machines or tools are Grizzly?  
____0-2 ____3-5 ____6-9  
____10+  
____No  
____No  
7. Do you think your machine represents a good value? ____Yes  
8. Would you recommend Grizzly Industrial to a friend? ____Yes  
9. Would you allow us to use your name as a reference for our customers in your area?  
Note: We never use names more than 3 times. ____Yes ____No  
10. Comments:_________________________________________________________  
______________________________________________________________________  
______________________________________________________________________  
______________________________________________________________________  
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Send a Grizzly Catalog to a friend:  
Name________________________________  
Street________________________________  
City______________State______Zip_______  
FOLD ALONG DOTTED LINE  
Place  
Stamp  
Here  
GRIZZLY INDUSTRIAL, INC.  
P.O. BOX 2069  
BELLINGHAM, WA 98227-2069  
TAPE ALONG EDGES--PLEASE DO NOT STAPLE  
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