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Graco 311322H, Operation, Parts, Service And Repair

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Graco 311322H Operation, Parts, Service And Repair Download Page 23

Repair

311322H

23

Air Passage Diagrams

Use thread sealant when reinstalling any 
threaded components. In addition, reinstall 
all set screws flush to outside surface of 
gun handle.

F

IG

. 16: Air Cylinder Air Passages

1.858 dia.

1.750 dia.

.375 dia.

.3125 dia.

.250 dia.

.687 dia.

.3125 dia.

8-32 UNC-GH3 TAP

8-32 UNC-2B TAP

5/32 in. drill

1/8 in. drill

1/8 in. drill

Summary of Contents for 311322H

Page 1: ...ms Not for use in explosive atmospheres See page 3 for model information 3000 psi 20 7 MPa 207 bar Maximum Working Fluid Pressure 125 psi 0 86 MPa 8 6 bar Maximum Working Air Pressure Important Safety...

Page 2: ...ial Set Up 11 Daily Start Up 11 Daily Shutdown 11 Pressure Relief Procedure 12 Grease Gun 12 Repair 13 Side Blocks 13 Mixing Chamber and Gun Block 15 End Cap and Air Piston 17 End Cap O ring and Safet...

Page 3: ...flat 295551 Flat Pattern Gun 01 flat 295552 Flat Pattern Gun 02 flat 295553 Flat Pattern Gun 03 flat 295554 Flat Pattern Gun 04 flat 295556 Flat Pattern Gun 05 flat 295557 Round Pattern Gun 00 round...

Page 4: ...skin inhaled or swallowed Read MSDS s to know the specific hazards of the fluids you are using Store hazardous fluid in approved containers and dispose of it according to appli cable guidelines SKIN...

Page 5: ...the maximum working pressure or temperature rating of the lowest rated system component See Technical Data in all equipment manuals Use fluids and solvents that are compatible with equipment wetted p...

Page 6: ...Overall View 6 311322H Overall View Major Components FIG 1 Major Components shown with round spray tip A Screen Screw A Manual Valve Spray Tip R Screen Screw Trigger Safety Stop R Manual Valve...

Page 7: ...rall View 311322H 7 FIG 2 Front End Components shown with flat spray tip assembly 2 Side Block Screws A Side Block Gun Block Screws Air Seal Air Cap Flat Tip R Side Block Gun Block Mixing Chamber O Ri...

Page 8: ...facturer s warnings and material MSDS to know specific hazards and precautions related to isocyanates Prevent inhalation of isocyanate mists vapors and atomized particulates by provid ing sufficient v...

Page 9: ...anual valves counterclock wise approximately three full turns 2 Close manual valves by turning fully clock wise Always engage safety stop close both man ual valves and disconnect air before clean ing...

Page 10: ...e air hose from nipple at base of gun handle 2 Remove nipple from gun handle 3 Remove pipe plug from back of gun 4 Install pipe plug in base of gun handle 5 Install nipple in back of gun 6 Connect air...

Page 11: ...surface 11 Proceed with Daily Start up procedure or Shutdown procedure as required Daily Start Up 1 Connect air supply to gun page 10 2 Trigger gun multiple times to ensure proper mixing chamber move...

Page 12: ...er gun 2 or 3 times to discharge any excess lubricant 5 Disconnect gun air supply page 10 Relieve pressure before cleaning or repairing gun If fluid in hose and proportioner is still under pressure fo...

Page 13: ...side 3 Alternately loosen side block mounting screws Carefully separate side blocks from gun Wipe mating surfaces with a rag soaked in gun cleaner 4 Remove check valve retainer side seal assembly from...

Page 14: ...check valve assembly for damage by measuring gap between mating surface of side block and bottom edge of side seal assembly insert If gap measures 0 018 in 46 mm or less the check valve assembly has...

Page 15: ...ment of mixing chamber 6 Use a 3 16 in wrench or needle nose pliers to hold end of piston shaft while unscrewing mixing chamber by hand Clean mixing chamber with gun cleaner and drill bits Inspect for...

Page 16: ...Repair 16 311322H FIG 10 Mixing Chamber and Gun Block 2 Side Block Screws O Ring Mixing Chamber Gun Block R Side Block A Side Block Gun Block Screws Air Seal Flat Tip Air Cap...

Page 17: ...FIG 11 Use a 3 16 in wrench or nee dle nose pliers to hold end of piston shaft while unscrewing mixing chamber by hand 5 Disengage safety stop 6 Use a 9 64 in ball point hex key to remove socket head...

Page 18: ...oove in air cylin der which is where retaining ring nests Maintain pressure on end cap ensure groove remains visible and install retaining ring using retaining ring pliers 16 Reinstall socket head scr...

Page 19: ...to remove retaining ring Ring retains end cap position in air cylinder 5 Pull safety stop until it and attached end cap come free from air cylinder Be sure to retain piston spring which is located ins...

Page 20: ...spring Insert end cap into air cylinder Press end cap until it moves past undercut groove in air cylinder which is where retaining ring nests Main tain pressure on end cap ensure groove remains visibl...

Page 21: ...at until valve liner and seat are pushed out of valve cavity 10 Inspect the four o rings on valve liner and replace if necessary Apply Lubriplate grease liberally to o rings before installing 11 Ensur...

Page 22: ...IG 15 Trigger Air Valve Assembly Optional Air Hose and Nipple 1 8 in Pipe Plug 1 16 in Pipe Plug Trigger Mounting Screw Trigger Lever Valve Spring Lock Nut Valve Retainer Nut Spring Seat Valve Liner O...

Page 23: ...ing any threaded components In addition reinstall all set screws flush to outside surface of gun handle FIG 16 Air Cylinder Air Passages 1 858 dia 1 750 dia 375 dia 3125 dia 250 dia 687 dia 3125 dia 8...

Page 24: ...1 8 in drill 10 32 UNC 2B TAP 1 8 in drill 5 32 in drill 5 32 in drill 1 8 in drill 10 32 UNC 2B TAP 1 8 in drill 10 32 UNC 2B TAP 5 32 in drill 5 32 in drill 1 2 in dia 5 8 18 UNC 2B TAP 1 8 in drill...

Page 25: ...Repair 311322H 25 Notes...

Page 26: ...Pro Spray Gun Assembly FIG 18 GAP Pro Final Assembly 2 5 4 3 10 2 2 9 31 12 6 21 20 27 16 19 17 13 15 14 26 23 7 23 26 14 15 13 35 32 34 33 29 28 8 11 1 19 16 22 9 31 1 18 27 29 28 27 29 28 33 34 32 3...

Page 27: ...6952 BLOCK gun 1 12 296960 HANDLE gun 1 13 296953 CHECK VALVE ASSEMBLY 2 14 296957 RETAINER check valve 2 15 296959 SPRING pack of 2 16 296939 SCREEN 80 mesh pack of 10 17 296940 SCREW screen A side 1...

Page 28: ...6844 296844 296845 28 296945 296945 296945 296945 296945 296945 296945 29 296950 296950 296950 296950 296950 296950 296950 31 295662 295662 295662 295662 295662 295662 295662 32 33 296473 296473 29647...

Page 29: ...Parts 311322H 29 Notes...

Page 30: ...Parts 30 311322H GAP Pro Spray Gun Handle Assembly FIG 19 GAP Pro Handle Assembly 70 62 77 75 66 76 51 78 79 82 57 85 81 53 56 83 65 59 84 86 54 74 64 57 72 58 71 73 69 61 60 63 57 52 57 67 55 80 68...

Page 31: ...4 SCREW set socket hd 2 63 102279 SCREW set socket hd 2 64 296971 SPRING 1 65 296535 CLAMP cylinder 1 66 108103 O RING 1 67 168518 O RING 1 68 295695 SCREW cap button hd 1 69 295671 SCREW trigger 1 70...

Page 32: ...anout Drills Part Number Spray Width Kit Ref 296948 10 14 in at 1500 psi 1 296949 12 16 in at 1500 psi 2 Pour fitting 297078 1 Polyflow tubing 3 8 in diameter x 1 ft length 296165 1 FIG 20 Pour Packag...

Page 33: ...mum Air Inlet Pressure 125 psi 0 9 MPa 9 bar Maximum Output flow rate 40 lb min 18 kg min Air Inlet Size 1 8 npt A Component ISO Inlet Size 5 JIC 1 2 20 UNF R Component Resin Inlet Size 6 JIC 9 16 18...

Page 34: ...close any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU...

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