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Manual Graco 3A0427B

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Summary
  • Graco 3A0427B - page 1

    3A0427B EN Instructions-Parts Low Flow Fluid Regulator Pneumatic controlled fluid regulator provides accurate, positive pressure c ontrol of finishing coatings in low flow applications. For profe ssional use only. 100 p si (0.7 MP a, 7 bar ) Maxi mum Ai r Inlet P ressu re 300 p si (2.1 MP a, 21 ba r) Maxi mum Fl uid Inl et Pres sure 90 psi (0.63 MP ...

  • Graco 3A0427B - page 2

    Warnings 2 3A042 7B Contents Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Mount the Fl uid Reg ulator . . . . . . . . . . . . . . . . . . 4 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Air Su pply . . . . . . . . ...

  • Graco 3A0427B - page 3

    Warn ings 3A042 7B 3 W ARNING W ARNING W ARNING W ARNING PRESSURIZED EQUIPMENT HAZARD Fluid from the g un/dis pense valv e, leaks , or rup tured compo nents can s plash in the eyes or on ski n and cause s erious injury . • Follow the Press ure Re lief Proce dure wh en yo u stop sp raying a nd befo re cl eanin g, check ing, o r servicing equ ipmen ...

  • Graco 3A0427B - page 4

    Inst allation 4 3A042 7B Installa tion Mount the Fl uid R egula tor See F IG . 1. M ount the fluid re gulator (C) in a locat ion close to the fl uid disp ense d evice. A mounting brac ket (D) i s sup pli ed . See Dimensions on page 14 for mount - ing infor matio n. Grou ndin g The equi pment mus t be grou nded. Mo unt the regulato r to a co nduct i ...

  • Graco 3A0427B - page 5

    Installa tion 3A042 7B 5 Key: A Air Sup ply Line to High Port B Air Supply Line to L ow Port C Low Fl ow Fluid R egulator D Mountin g Bracket (suppl ied) E Grounde d Mounting Su rface F Regul ated Fluid Outlet L ine G Fluid In let Supply Line H Flu id F ilt er J Fluid Dr ain Valv e (required ) K Flu id S huto ff V alv e L Ground Wire and Cla mp (Pa ...

  • Graco 3A0427B - page 6

    Inst allation 6 3A042 7B ...

  • Graco 3A0427B - page 7

    Operatio n 3A042 7B 7 Operation Pressure Relief Procedure 1. Shut off th e fluid supply . 2. Leave on the air to the fluid re gulato r. 3. Trigger the gun to relieve the flu id pres sure. 4. Shut o ff the air supply to the fl uid regu lator. 5. Open the fluid drain va lve t o reliev e all fl uid pres - sure, ha ving a contain er ready to catc h the ...

  • Graco 3A0427B - page 8

    Troub leshooti ng 8 3A042 7B Troubleshoot ing Relieve the pressur e (page 7) be fore che cking or rep airing t he equi pment. To repair the regu lator , refer t o page 1 0. Problem Cau se So lution No fluid fl ow. Plugged fluid inlet. Flush fluid li ne and regulato r. Exhaus ted flu id supp ly. Chec k fluid sup ply an d supp ly pump. No air i nlet ...

  • Graco 3A0427B - page 9

    Troubles hootin g 3A042 7B 9 Fluid flow will not shu t off. Dirty needl e (6) and s eat (5) . Remove and clean. Replace if worn or dama ged. Se e page 10. Inlet air i s not shu t off. Shut off i nlet air. Seat ret ainer (7) is l oose. Tighte n. Broken spring (13). Repla ce sp ring (1 3). See p age 10 . Regula tor is leak ing fl uid. Screws (17) are ...

  • Graco 3A0427B - page 10

    Repai r 10 3A042 7B Repair Disassembly 1. Flush the r egulator with a c ompatible solv ent. See page 7. 2. Relieve pressu re. See p age 7. 3. Disconn ect the air an d fluid line s from the r egulato r. Remove the reg ulator for repai r. 4. Remove the fluid inlet fittin g (20). S ee F IG . 2. 5. Remove fi ve sc rews (17) , the air cham ber cover (4) ...

  • Graco 3A0427B - page 11

    Repair 3A042 7B 11 F IG . 2. R egu lat or As sembl y 1 Torque oppositely and alternately t o 25 in-lb (2.8 N•m). Apply thread sealant. Apply pipe sealant. White PTFE diaphragm (9a) mu st always face the fluid. 1 2 3 4 2 3 TI 15290 a 20 1 8 10 17 4 13 2 27 26 4 7 ◆ 6 ◆ 5* ◆ 11* 3† 29* 14† 15*† *9a (ptf e) *9b (nyl on/bun a-N) ...

  • Graco 3A0427B - page 12

    Parts 12 3A042 7B Parts 24C375 1:1 Ratio Fluid Regulator, Se ries A 24E471 1:2 Ratio Fluid Regulator, Series A 24E472 1:3 Ratio Fluid Regulator, Series A * Parts in clude d in Re build Kit 24E5 04 (pu rchase sep- arat ely ). † Parts include d in Ra tio Ki ts (pur chase s epar ately): 24E501, 1:1 Rati o (sil ver spa cer) 24E502, 1:2 Rati o (gree n ...

  • Graco 3A0427B - page 13

    Parts 3A042 7B 13 TI15290 a 20 1 7 ◆ 6 ◆ 5* ◆ 8 11* 10 17 4 3† 29* 14† 13 2 15* † 27 26 *9a (ptfe ) *9b (nylo n/buna-N) TI1528 9a 19 19a 19b See pa rts break down abo ve ...

  • Graco 3A0427B - page 14

    Dime nsions 14 3A042 7B Dimensions TI 15291 a TI15288 a Bracket Mounting Hole Diagram 1.08 in . (27.43 mm) 0.194 in. ( 5 mm) diameter hole s 1.81 in. (46 mm) diameter ) 2.70 in . (69 mm) 1.91 in. (49 m m) ...

  • Graco 3A0427B - page 15

    Technica l Data 3A042 7B 15 Technical Data Maximum air inlet p ressure . . . . . . . . . . . . . . . . . . . . . . 100 p si (0.7 MPa, 7 bar ) Maximum fluid in let pr essure . . . . . . . . . . . . . . . . . . . . . 300 psi (2.1 MPa, 21 ba r) Maximum regulate d fluid pres sure (hi gh pres sure por t) All Mo dels . . . . . . . . . . . . . . 90 psi (0 ...

  • Graco 3A0427B - page 16

    Performance Data 16 3A042 7B Perfor mance Data Use the follo wing chart s to choose the best ratio for yo ur applica tion, d ependi ng on th e desi red fluid p ressur e range an d pressur e losse s due to fl ow rate, fl uid visco s- ity, and f luid lin e size. The ratio determ ines the fluid pr essure to air pres sure respons e curv e: • A hig he ...

  • Graco 3A0427B - page 17

    Performance Da ta 3A042 7B 17 0 20 40 60 80 100 (0.7, 7.0) (0.56, 5.6) (0. 42, 4 .2) (0.28, 2 .8) (0. 14, 1 .4) 300 400 500 600 700 800 1000 1100 900 0 Pilot Air Pr essure Fluid Flow Rate, cc/m in psi (MPa, bar) 1:1 R ati o, 25 centipoise 1:1 Ratio , 75 centip oise 1:2 Ratio, 25 centip oise 1:2 R ati o, 75 cen ti poi se 1:3 Ratio, 25 centip oise 1: ...

  • Graco 3A0427B - page 18

    All written and visual data contained in this document reflects the latest product information available at the time of publi ca tion. Graco reserves the right to make changes at any t ime without notice. This manual contains E nglish. MM 3A0427 Graco Hea dquarters: Minne apolis Internati onal Offices : Belgium , China, Ja pan, Korea GRACO INC. AND ...

Manufacturer Graco Category Thermostat

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All of them are important, but the most important information from the point of view of use of the device are in the user manual Graco 3A0427B.

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Graco 3A0427B by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Graco 3A0427B.

A complete Graco manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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