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Manual Graco 312794E

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  • Graco 312794E - page 1

    Instr uctions - P ar ts Merkur ® Pump Assemb l y 312794E ENG For high-perf ormance finishing and coating applications in hazardous or non-hazar dous locations. For prof essional use only . See page 4 f or model inf ormation, including maximu m work- ing pressure . Important Safety Instru ctions Read all warnings and instr u ctions in this manual. ...

  • Graco 312794E - page 2

    2 312794E Contents Pump P ar t Number Ma trix . . . . . . . . . . . . . . . . . . . 3 Pump Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Related M anuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Component I dentifica tion . . . . . . ...

  • Graco 312794E - page 3

    Pump Part Number Matrix 312794E 3 Pump P ar t Number Matrix Chec k your p ump’ s identif ication plate (ID) f or the 6-digit par t number . Use the f ollowing ma trix to define the construction of y our pump , based on the six digits. For e xample, P ar t No . W 1 5 A A S represents a w et cup pump ( W ), 15 to 1 ratio ( 15 ), 25 c c lower ( A ), ...

  • Graco 312794E - page 4

    Pump Models 4 312794E Pump Models Model, Series Air Motor Displacement Pump Maximum Fluid W or king Pressure psi (MPa, bar) Flow Rate at 60 cpm gpm (lpm) Fluid Inlet Fluid Outlet Air Inlet W10CAS, Series A M04LN0 L W07 5A 1000 (6.9, 6 9) 1.2 (4.5) 3/4 in. npt 3/8 in. npt 1/4 npt(f) W10CBS, Series A M04L T0 W15AAS, Series A M02LN0 L W025A 1500 (10.3 ...

  • Graco 312794E - page 5

    Warnings 312794E 5 Wa r n i n g s The f ollowing w arnings are for t he setup , use, g rounding, maintenance , and repair of this equipme nt. The e xclama- tion point symbol ale r ts you to a gener al warning and the hazard symbol r ef ers to procedure -specific risk. Ref er back to these wa r nings . Additional, product- specific warnings ma y be ...

  • Graco 312794E - page 6

    Related Manua ls 6 312794E Related Manuals PRESSURIZED EQUIPMENT HAZARD Fluid from the gun/dispense v alv e, leaks , or ruptured components can spla sh in the ey es or on skin an d cause serious injury . • F ollow Pressure Relief Procedure in this manual, when you stop spraying and bef ore cleaning , chec king, or ser vicing equipment. • Tighte ...

  • Graco 312794E - page 7

    Component Identi fication 312794E 7 Component Identification Key: A Ground Wire B TSL Reservoir C W et Cup (not visi ble , under TSL reser voir) D Fluid Outlet E Fluid Inlet F Lower Cylinder G Upp er Cylinder H Tie Rod Shield J Displacement Pump Adapter KT i e R o d L Coupling Nut MJ a m N u t N Air Motor F IG . 1. Component Identification A B M D ...

  • Graco 312794E - page 8

    Installation 8 312794E Installation General Inf ormation Prepare the Operator All persons who oper ate the equipment must be tra ined in the opera tion of all system components as w ell as the proper handlin g of all fluids. All operators must thor- oughly read all instruction man uals, tags , and labels bef ore oper ating the equipme nt. Prepare t ...

  • Graco 312794E - page 9

    Installation 312794E 9 Mount the Pump Mount the pump o nly to Graco wall brac ke t 15T795, or to a Graco cart, av ailab le from your distributor . Pump dimensions are sho wn on page 28. F or w all mounted pumps, f ollo w these guidelines: 1. Be sure the wa ll can suppor t the weight of the pump, brac ket, hoses and acces sories, as well as the stre ...

  • Graco 312794E - page 10

    Installation 10 312794E T ypical Installation A Air Shutoff V alv e B Air Filter (optional accessor y) C Gun Air Pressure Gauge D Gun Air Pressure Reg ulator E Bleed T ype Master Air V alv e F DataT rak G Pump Air Pressure Gauge H Pump Air Pressure Regul ator J Soleno id Releas e Button (not visible) KG u n S w i v e l L Air-Assisted Spra y Gun M G ...

  • Graco 312794E - page 11

    Operation 312794E 11 Operation Pressure Relief Pr ocedure 1. Engage t he trigg er lock. 2. Close the bl eed-type master air v alv e. 3. Disengage the trigger loc k. 4. Hold a metal par t of the gun firmly to a grounded metal pail. T rigger the gun to reliev e pressure. 5. Engage t he trigg er lock. 6. Open all fluid dr ain v alves in th e system, h ...

  • Graco 312794E - page 12

    Operation 12 312794E Prime and Adjust the Pump 1. Lock gun trig ger . Remov e tip guard and spray tip from gun. Refer to gun manual. 2. Close gun air regulato r and pump air regulator (H) by tur ning knobs countercloc kwise reducing pre s- sure to zero . Close bleed-type air v alve (E). Also v erify that all drain v alv es are closed. 3. Chec k tha ...

  • Graco 312794E - page 13

    Maintenance 312794E 13 Maintenance Preventive Maintenance Schedule The oper ating conditio ns of yo ur par ticular syste m determine how often maintenance is req uired. Estab lish a prev entive maintenance sched ule by recording when and what kind of maintena nce is needed, and then determine a regular schedule f or checking y our system. Tighten T ...

  • Graco 312794E - page 14

    Troubleshooting 14 312794E T r oub leshooting NO TE: Check all possible prob lems and caus es before disassemb ling the pump . Relieve the pre ssure before checking or serv icing the equipment. Prob lem Cause Solution Pump output low on both strok es. Restricted air supply lines. Clear any obstructions; be sure all shutoff valv es are open; increas ...

  • Graco 312794E - page 15

    Repair 312794E 15 Repair General Inf ormation • Ref erence nu mbers and letters in parent heses in the te xt ref er to the ca llouts in the figures and the par ts d ra wing. • Alwa ys use Gen uine Graco P arts and Accessories, av ailab le from y our Graco distrib utor . If y ou supply yo ur own accessories , be sure the y are adequately sized a ...

  • Graco 312794E - page 16

    Repair 16 312794E Reconnect the Displacement Pump 1. Tilt the air motor onto its bac k, then hand turn the displacement pum p into the adapter pla te. Set the pump upr ight agai n. 2. Hold the air m otor piston r od up with one ha nd. With your other hand, put the cou pling nut (9) on the dis- placement ro d. 3. Put the coupling collars (10) into t ...

  • Graco 312794E - page 17

    Repair 312794E 17 Disconnect the Air Motor 1. Flush the pump , if possible . (See page 13.) Re liev e the pressure. (See pag e 11.) 2. Disconnect the ai r and fluid hoses , the grou nd wire (13), and t he tie rod shie ld (11). 3. Hold the fla ts of the air mo tor piston r od with a wrench. Use another wre nch to loosen the coupling nut (9 ). 4. Use ...

  • Graco 312794E - page 18

    Pump Parts 18 312794E Pump P ar ts 1 1 2 3* 4 5* 6* 7* 9* 10* 11* ti12810a 2 3 4 12* 8* T orque varies by air motor size. M02xxx: 5-10 ft-lb (7-13.5 N•m) All others: 50-55 ft-lb (68-75 N•m) 1 T orque varies by air motor size. M02xxx: 15-20 ft-lb (20-27 N•m) All others: 50-60 ft-lb (68-81 N•m) 2 T orque varies by displacement pump size. 25 c ...

  • Graco 312794E - page 19

    Pump Parts 312794E 19 ----- Not sold separately . * Included in Connecting Kit. See page 20 to order the correct k it f or your pump. NO TE: Replacement Warning labels, signs, tags, and cards are av ailab le at no cost. P arts That V ary by Model Ref. Pa r t No. Description Qty . 1 See T able MO T OR 1 2 See T ab le DISPLACEMENT PUMP 1 3* See T abl ...

  • Graco 312794E - page 20

    Repair Kits 20 312794E Repair Kits NO TE: For displacement pump repair ki ts , see ma nual 312792 . For air motor repair kits , see manual 31279 6. Kit Description L W025A L W050A L W075A L W100A L W125A L W150A 2.5 in. motor 3.5 in. motor 3.5 in. motor 6-7.5 in motor 3.5 in. motor 6-7.5 in motor W et-Cup O-Ring P ackage of 10 24A630 24A631 24A631 ...

  • Graco 312794E - page 21

    Performance Charts 312794E 21 Pe r f o r m a n c e C h a r t s Cycles per Minute 0.2 200 400 600 800 1000 2 4 6 8 0 0 A B C A B C Fluid Flow gpm (lpm) test ed in No. 10 weight oil Fluid Outlet Press ure psi (MPa, bar) (7, 70) (3, 30) (4, 40) (5.5, 55) (1.4, 14) (.06) (0.1) (0.17) (0.23) Air Flow scfm (m 3 /min) (0.75) Model W10xxx 10:1 Ratio, 75 cc ...

  • Graco 312794E - page 22

    Performance Charts 22 312794E Cycles per Minute 200 400 600 800 1000 1200 2 4 6 8 1400 0 0 A B C A B C Fluid Flow gpm (l pm) tested in No. 10 weight oil Fluid Outlet Pressure psi (MPa, bar) (7, 70) (3, 30) (4, 40) (5.5, 55) (1.4, 14) (8, 80) (10, 100) (.06) (0.1) (0.17) (0.23) Air Flow scfm (m 3 /min) 0.1 0.2 0.3 0.4 0. 5 0.6 0.7 0.8 (0.4) (0.8) (1 ...

  • Graco 312794E - page 23

    Performance Charts 312794E 23 KEY A = 100 psi (0.7 MP a, 7 bar) B = 70 psi (0.5 MP a, 5 bar) C = 40 psi (0.3 MP a, 3 bar) = fluid flow = air flo w Cycles per Minute 0 0 A B C A B C Fluid Flow gpm (lpm) test ed in No. 10 weight oil Fluid Outlet Pre ssure psi (MPa, bar) Air Flow scfm (m 3 /min) Model W18xxx 18:1 Ratio, 125 cc/cycle (14, 140) 2000 10 ...

  • Graco 312794E - page 24

    Performance Charts 24 312794E KEY A = 100 psi (0.7 MP a, 7 bar) B = 70 psi (0.5 MP a, 5 bar) C = 40 psi (0.3 MP a, 3 bar) = fluid flow = air flow Cycles per Minute 0 0 A B C A B C Fluid Flow gpm (lpm) test ed in No. 10 weight oil Fluid Outlet Pressure psi (MPa, bar) Air Flow scfm (m 3 /min) Model W24xxx 24:1 Ratio, 150 cc/cycle 10 20 30 40 50 60 (0 ...

  • Graco 312794E - page 25

    Performance Charts 312794E 25 KEY A = 100 psi (0.7 MP a, 7 bar) B = 70 psi (0.5 MP a, 5 bar) C = 40 psi (0.3 MP a, 3 bar) = fluid flow = air flow Cycles per Minute Fluid Flow gpm (lpm) tested in No. 10 weight oil Fluid Outlet Pres sure psi (MPa, bar) Air Flow scfm (m 3 /min) 0.05 0.1 0.15 0.2 0.25 0.3 0.35 1000 2 4 6 8 0 0 A B C A B C (7, 70) (.06) ...

  • Graco 312794E - page 26

    Performance Charts 26 312794E KEY A = 100 psi (0.7 MP a, 7 bar) B = 70 psi (0.5 MP a, 5 bar) C = 40 psi (0.3 MP a, 3 bar) = fluid flow = air flow Cycles per Minute 0 0 A B C A B C Fluid Flow gpm (lpm) test ed in No. 10 weight oil Fluid Outlet Pressure psi (MPa, bar) Air Flow scfm (m 3 /min) Model W36xxx 36:1 Ratio, 100 cc/cycle 10 20 30 40 50 60 (0 ...

  • Graco 312794E - page 27

    Performance Charts 312794E 27 KEY A = 100 psi (0.7 MP a, 7 bar) B = 70 psi (0.5 MP a, 5 bar) C = 40 psi (0.3 MP a, 3 bar) = fluid flo w = air flow Cycles per Minute 0 0 A B C A B C Fluid Flow gpm (lpm) test ed in No. 10 weight oil Fluid Outlet Pres sure psi (MPa, bar) Air Flow scfm (m 3 /min) Model W48xxx 48:1 Ratio, 75 cc/cycle 0.2 (0.75) 0.4 0.6 ...

  • Graco 312794E - page 28

    Pump Dimensions 28 312794E Pump Dimensions Pump Model A in. (mm) B in. (mm ) C in (mm) D in (mm) W eight lbs (kg) W10xxx 24.6 (625) 5.6 (142) 5.8 (147) 7.8 (198) 30 (14) W15Axx 24.1 (612) 4.2 (107) 5.1 (130) 6.2 (1 57) 15 (7) W15Bxx 24.0 (610) 5.6 (142) 5.8 (147) 7.8 (198) 28 (13) W15Fxx 25.2 (640) 8.6 (218) 11.7 (297) 11.4 (290) 6 1 (28) W18xxx 25 ...

  • Graco 312794E - page 29

    Wall Bracket Moun ting Dimensions 312794E 29 W all Brac ket Mounting Dimensions Te c h n i c a l D a t a 4 in. (102 mm) 11 in. (279 mm) Four 0.40 in. (10 mm) mounting holes ti12833a Maximum fluid working pr essure . . . . . . . . . . . . . . . . . . . See M odels, page 4 Maximum air inlet pressure . . . . . . . . . . . . . . . . . . . . . . . See M ...

  • Graco 312794E - page 30

    All written and visual data contained in this document reflects the latest product information available at the time of publica tion. Graco reserves the right to make changes a t any time without notice. Original instructions. T his manual contains English. MM 312794 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Kore ...

Manufacturer Graco Category Heat Pump

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2. Contents - index of all tips concerning the Graco 312794E, that we can find in the current document
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4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Graco 312794E
5. FAQ - Frequently Asked Questions
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