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Model H3253, H3254, H3255 Spray Gun

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SECTION 6: MAINTENANCE

Cleaning

Figure 16. 

Disassembly for cleaning.

 

Atomizing Cap

Fluid Tip

Spring

Fluid Control Knob

Needle

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.

To clean your spray gun:

1. 

Spray  a  small  amount  of  solvent 
through the spray gun.

 
 

Note: 

Check with local laws regarding 

this  practice.  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.

 

2.

 

Disconnect  the  gun  from  the  com-
pressed air!

3. 

Remove the cup and cup lid.

4. 

Disassemble  the  gun  by  unscrewing 
the fluid control knob, then remove the 
spring and needle.

5.

  Unscrew  the  atomizing  cap  with  your 

fingers  and  the  fluid  tip  with  the  ser-
vice  wrench.  The  fully  disassembled  
gun should look like 

Figure 16

.

6.

  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.

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.

8.

  Wipe the gun body with a lint free shop 

towel to dry.

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.

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 are made of alu-
minum. Read solvent label carefully 
before using solvent.

Cup Lid

Cup

Summary of Contents for H3253

Page 1: ...USTRIAL INC WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL INC PC8209 PRINTED IN CHINA SPRAY GUN MODELS H3253 H3254 H3255 I...

Page 2: ...ent prevention measures NOTICE Indicates an imminently hazardous situation which if not avoided WILL result in death or serious injury Safety Instructions For Pneumatic Tools 1 KEEP ALL SAFETY DEVICES...

Page 3: ...anging accessories 16 REDUCE THE RISK OF UNINTENTIONAL STARTING Do not carry tool with hand on trig ger and always disconnect from air when not in use 17 DISCONNECT TOOLS before ser vicing and changin...

Page 4: ...Grizzly s policy of continuous improve ment changes may be made at any time with no obligation on the part of Grizzly SECTION 2 INTRODUCTION Foreword Contact Information If you have any comments rega...

Page 5: ...AIR CONSUMPTION 4 7 CFM 3 2 CFM 7 9 CFM INLET AIR PRESSURE 3 5 4 2 BAR 50 60 PSI 1 5 3 5 BAR 21 50 PSI 4 5 6 BAR 65 87 PSI FLUID PRESSURE Greater Than 10 PSI Greater Than 10 PSI Greater Than 10 PSI CU...

Page 6: ...After you have unpacked the carton you should nd the following Model H3253 Inventory Figure 1 A Large Spray Gun 1 B Cup 1 C Service Wrench 1 D Cleaning Brush 1 E Barbed Hose Fitting 1 4 NPT 1 Inventor...

Page 7: ...gun using the barbed hose fitting provided Models H3253 H3254 H3255 or with a 1 4 NPS quick connect fitting not included 4 Attach the spray gun to a filtered regu lated air source See the Tool Data Sh...

Page 8: ...t available on H3254 3 Air Flow Control Controls the fluid pressure inside the spray gun H3255 only 4 Atomizing Cap Controls the spray pattern from vertical to horizontal 5 Trigger Two stage trigger S...

Page 9: ...ure recommended in Tool Data Sheet on Page 5 or to the material manufacturer s recommendations 4 Adjust the atomizing cap to vertical or horizontal See Atomizing Cap and Fan Adjustments on Page 11 for...

Page 10: ...ts 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 spe...

Page 11: ...on Page 13 Figure 9 Set up for horizontal stroke direction with vertical fan pattern Figure 10 Set up for vertical spray stroke with horizontal fan pattern Stroke Holes Figure 11 Fan adjustment Rotat...

Page 12: ...ies 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 1 4 NPT Figure 13 Red rubber air hos...

Page 13: ...cap with your fingers and the fluid tip with the ser vice wrench The fully disassembled gun should look like Figure 16 6 Rinse these parts thoroughly in sol vent then dry with compressed air or let a...

Page 14: ...ay gun lubricant after cleaning A Atomizing Cap Threads B Air Valve Packing C Trigger Pin D Air Flow Control Valve E Pattern Control F Fluid Control Knob Allow the lubricant to coat threads and run in...

Page 15: ...plugged 2 Build up on left or right side of fluid tip 3 Build up of material inside atomizing cap 1 Clear holes 2 Clean 3 Clean Heavy deposit of material in center 1 The material flow exceeds the atom...

Page 16: ...s from gun 1 Fluid tip loose 2 Dry or damaged seals 3 Excessive pressure 1 Tighten 2 Replace seals 3 Reduce pressure Thick dimpled fin ish orange peel appearance 1 Holding gun too close to sur face 2...

Page 17: ...3253038 TRIGGER 10 PH3253010 SNAP RING 39 PH3253039 SCREW 11 PH3253011 HOUSING 40 PH3253040 CONNECTION 12 PH3253012 O RING 41 PH3253041 FEED TUBE ASSEMBLY 13 PH3253013 SCREW 42 PH3253042 YOKE ASSEMBLY...

Page 18: ...016 CUP COVER NUT 5 PH3254005 CUP COVER GASKET 17 PH3254017 FEED TUBE 6 PH3254006 CUP 18 PH3254018 TRIGGER ADJ SCREW 7 PH3254007 AIR BYPASS VALVE 19 PH3254019 GUN FRAME TRIGGER ASSY 8 PH3254008 PLUG 2...

Page 19: ...Model H3253 H3254 H3255 Spray Gun 19 Parts Breakdown H3255...

Page 20: ...SSION SPRING 10 PH3255010 HOUSING WASHER 32 PH3255032 PAINT INLET JOINT 11 PH3255011 O RING 33 PH3255033 PAINT INLET PLUG 12 PH3255012 NEEDLE HOUSING 34 PH3255034 NUT 13 PH3255013 FLUID ADJ NEEDLE 35...

Page 21: ...le 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...

Page 22: ...Model H3253 H3254 H3255 Spray Gun 22...

Page 23: ...__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 7 Do you think your machine represents a good value ____Yes ____No 8 Would you r...

Page 24: ...P O BOX 2069 BELLINGHAM WA 98227 2069 TAPE ALONG EDGES PLEASE DO NOT STAPLE Name________________________________ Street________________________________ City______________State______Zip_______ Send a...

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