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Graco 256200 manual

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Table of contents for the manual

  • Page 1

    Instructions - Parts List T1 2:1 Ratio Transfer Pump For use with polyurethane foam, polyurea, and solv ent-borne and water-borne ma terials. For professional use only. Model 256200 55 Gal lon (200 Liter) Dr um Size 180 psi (1.2 MPa, 12 bar) Maximum Air Working Press ure 360 psi ( 2.5 MPa, 25 bar) Maxi mum Fluid Work ing Pr essure Important Safety [...]

  • Page 2

    2 312766N Contents Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Isocyanate H azard . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Moisture S ensit ivity o f Isocya nates . . . . . . . . . . . 5 Foam Self- Ignition . . . . . . . . . . . . . . . . . . . . . . . . 6 Keep C omponen ts A and B Sepa rate . . . . . .[...]

  • Page 3

    Warnings 312766N 3 Warnings The fol lowing war nings ar e for the setup, use, grou nding, mai ntenance , and repa ir of this eq uip- ment. The excla mation point symbol aler ts you to a ge nera l warni ng an d the hazard symbo l refe rs to pro cedure- specifi c risk. R efer ba ck to the se warn ings. Additi onal, p roduct- specifi c warning s may b[...]

  • Page 4

    Warnings 4 312766N EQUIPMENT MISUSE HAZARD Misuse can cause death or se rious injury. • Do not op erat e the u nit wh en fat igue d or un der th e infl uence of dr ugs or a lcoho l. • Do not excee d the m aximu m wo rkin g pressu re or tempe ratur e rati ng of the low - est rated system componen t. See Tec hnical Data in all equip ment manual s[...]

  • Page 5

    Isocyanate Hazard 312766N 5 Isocyanate Hazard Moisture Sensitivity of Isoc yanates Isocyanates (ISO ) are catalyst s used in two compon ent fo am and polyu rea coat ings. ISO will rea ct wi th m ois ture (su ch as hum idi ty) to form small, hard, a brasive crystals, which becom e sus pended in the f luid. Even tually a film will form on the surface[...]

  • Page 6

    Isocyanate Hazar d 6 312766N Foam Se lf-Ign ition Keep Components A and B Separate Changi ng Materia ls • Whe n changi ng mate rials, fl ush th e equi p- ment multiple time s to ensure it is thor- oughly clean . • Check with your mate rial ma nufac tur er for chemical compa tibility. • Som e materia ls use catal yst on the A side , but some a[...]

  • Page 7

    Typ ical I nst allat ion 312766N 7 Typical Installation Typical Install ation withou t Circulatio n Key for F IG . 1. A Reactor ® Proporti oner B Heated Hose C Fluid Te mperature Sensor (FTS) D Heated Whip Hose EF u s i o n ® Spra y G un F Proporti oner and Gun Air Supply Hose G Feed Pump Air Supply Lines 3/8 i n. (76 mm) ID min . H Waste Contain[...]

  • Page 8

    Typica l Install ation 8 312766N Typical Ins tallatio n with Circulation Key for F IG . 2. A Reactor Pr oportioner B Heated Hose C Fluid Te mperature Sensor (FTS) D Heated Whip Hose E Fusion Spray Gun F Proporti oner and Gun Air Supply Hose G Feed Pump Air Supply Lines 3/8 in. (7 6 mm) ID min . J Fluid Supply L ines (217382) K Feed Pumps L Agi tato[...]

  • Page 9

    Typ ical I nst allat ion 312766N 9 Typical Ins tallatio n for Lubrication Applications Key for F IG . 3. AA Pump Air Regulator AB Air Line Lubri cator AC Ai r Line Filter AD Bleed-Type Master Air Valve (r equired, f or pum p) AE Fluid Dr ain Valve (required) AF Bung Ada pter AG Grounded Ai r Hose AH Grounded Fluid Hose AJ Pump Fluid Inlet AK 1/4 np[...]

  • Page 10

    Insta lla tion 10 312766N Installation System Accessories Refer to F IG . 3 an d the Accessories on pa ge 24. Air Line Accessories I nstall th e fol lowing accessories i n the or der shown in th e Typical I nstallation for Lubrica- tion Applications , usin g adap ters as n eces- sary: An air line lubricator (AB) prov ide s aut oma tic air moto r lu[...]

  • Page 11

    Setup 312766N 11 Setup 1. Apply thread sealant to the male threads of the ai r ne edle val ve (5 4) and the qu ick dis- connect f itting (55). I nstall into inlet port (AK). 2. Apply threa d sealant t o the male ou tlet fit- ting (BC ) (not supplie d) an d insert into t he outlet port (A L). 3. Use lab els ( 25) pr ovided to id entify th e appropr [...]

  • Page 12

    Setup 12 312766N 5. Inst all ai r line (3/ 8 in. (7 6 mm) ID min imum) with quick discon nect air coupler (56). 6. Connec t a grou nded fluid hose (AH) to th e 1/2 npt(f ) flu id outl et ( AL). In a cir culat ing system, remove th e pipe plug (2) and con- nect a fluid re turn line to t he 3/8 npt(f ) return po rt (AM). Grou nding 1. Pump : Connec t[...]

  • Page 13

    Operation 312766N 13 Operation Pressure Re lief Procedure 1. Shut off th e air t o the pump. 2. Clo se the bl eed- type ma ster air va lve (AD) . 3. Ho ld a meta l part of t he disp ense va lve firmly to a grou nded me tal p ail. Tri gger th e valv e to reli eve press ure. 4. Open all flu id drain valve s in the syste m, having a waste contai ner r[...]

  • Page 14

    Operation 14 312766N Daily Startup 1. Veri fy that t he air needle valve (54) is closed. 2. Co nnect the air line qu ick disc on nect co u- pler ( 55) t o the t ransfer pump . 3. Turn on the mai n air supply. 4. Slow ly op en the ai r need le val ve unti l the transfer pum p runs slowly. 5. Use the air n eedle va lve t o control the pump spee d. Da[...]

  • Page 15

    Repair 312766N 15 Repair Before y ou start • Hav e all t he ne cessary re pair p arts on hand. • Clean all part s with a comp atible so lvent . Inspect p arts fo r wear o r da mage an d replac e as ne eded. • Flush the pump, if po ssible. Sto p the pump at th e bott om o f its strok e. Follow Pressure Relief Proce dure on pag e 13 be for e re[...]

  • Page 16

    Repair 16 312766N 3. Use a pliers on the top plat e of the air valve piston (38) a nd a wr ench on the piston r od (35) to uns crew the a ir val ve pis ton from the pi ston rod . See F IG . 11. 4. Remove washer (10) , lower spring (9), and gasket (27). Insp ect for wear or d amage and r eplac e as n ece ssar y. S ee F IG . 13. 5. If an y valve plat[...]

  • Page 17

    Repair 312766N 17 3. Rein stall th e sprin g (7 ) and g asket ( 27) on the cyli nder ca p (3 4) and s cre w the cap onto the cylind er (8). Screw the cylinder into t he ai r moto r base (13). See F IG . 10. Pump Lower Disa ssemb ly 1. Uns crew the air mo tor con necting ring (1 5). Lay the pump on its si de and rotat e until the bal l on th e pum p[...]

  • Page 18

    Repair 18 312766N 4. Push down on the p ump conn ectin g rod (37) un til fluid piston a ssembly is clear of displ acement pump frame (36) . Pull the piston assembl y and co nnectin g rod ou t of the fra me. Re move the be aring (31) and seal (51) from th e frame. 5. Unscrew th e piston body (23) fr om the pis- ton valve housing on th e flui d pisto[...]

  • Page 19

    Repair 312766N 19 Pump Lower Re assemb ly 1. Lu brica te pac king (1 7) an d bearin g (18) with no . 2 li thium -bas ed grea se. 2. Insta ll the bearin g (1 8), a nd cup pa cking (17) with th e lips facin g down on the pump connecti ng rod (37). See F IG . 18. 3. Lub ricate the piston seal s (21) and bearin g (22) with n o. 2 l ithium -bas ed grea [...]

  • Page 20

    Repair 20 312766N 8. Install intake valve (29). a. For Ser ies A an d B Pu mps: Apply thread locker to thre ads of intake valve (29). To rque to 10-1 5 ft-lb s (13.5-2 0 N•m). b. For Series C Pumps: Lubric ate o-r ing (59) an d inst all thre ad locki ng com- pound to th reads of inta ke va lve (29 ). Torque to 30 -35 f t-lb s (41- 48 N• m). F I[...]

  • Page 21

    Troubleshooti ng 312766N 21 Troubleshooting Problem Cause Solution The pump f ails to operate . Dirty or worn air moto r. Clean, se rvice. Inadequ ate a ir supp ly or restricted lines. Clean l ines or increase the ai r supply (see Technical Da ta). Closed or clog ged a ir valv es. Open or clear the va lves. Clogged fluid hose or valve . Clear th e [...]

  • Page 22

    Parts 22 312766N Parts T1 2:1 Ratio Transfer Pump, 256200 Torque to 30-35 f t-lb (41-48 N •m) Lips fa ce down Lips fa ce up Groo ves fa ce do wn Use ass embly to ol 24B9 17 6. Th in, me dium , and thic k refers to the rel ative cross se ction thicknes s of t he o-rin gs. 1 2 3 4 5 16 16d 16b 1 31 6 3 18 7 5 24 29 20 28 9 27 2 35 10 27 34 13 15 14[...]

  • Page 23

    Parts 312766N 23 T1 2:1 Ratio Transfer Pump, 256200 Comp lete T1 pum p repair kit 24X055 contai ns repair kits 2 47958 a nd 24K363 . † Parts include d in r epair k it 247 958. ◆ Parts incl uded in r epair kit 24K 363. ✖ Indica tes parts not shown (shipp ed loo se). ★ Parts include d in r epair k it 24R9 89. Se e Pump Lower Disa ssembly , p [...]

  • Page 24

    Accessorie s 24 312766N Accessories Grounding Clamp Bleed-Type Master Air Val ve 300 psi (2.1 MPa, 21 bar) Maximum Worki ng Pressure Air Line Filter 250 psi (1.7 MPa, 17.5 bar) Maximum Working Pressure Air Line Lubricator 250 psi (1.7 MPa, 17.5 bar) Maximum Working Pressure Air Line Filter and Regulator 180 psi (1.3 MPa, 13 bar) Maximum Working Pre[...]

  • Page 25

    Accessories 312766N 25 Air Regulator and Gauge 300 psi (2.1 MPa, 21 bar) Maximum Worki ng Pressure Fluid Drain Valve 500 psi (3.5 MPa, 35 bar) Maximum Worki ng Pressure Insert Tool 24B917 (4 in. long) Fluid Pressure Regulator 250 psi (1.7 MPa, 17.5 bar) Maxi mum Working Pressure Fluid Filter 300 psi (2.1 MPa, 21 bar) Maximum Working Pressure UHMWPE[...]

  • Page 26

    Dimensions 26 312766N Dimensions 51.5 in . 33.7 in. 1/4 npt( f) Air In let 1/2 npt( f) Fluid Out let (85.6 cm ) TI171 70a (130.8 cm) 43.0 in . (109.2 cm)[...]

  • Page 27

    Technical Dat a 312766N 27 Technical Data Pressure ratio . . . . . . . . . . . . . . . . . . . . . . . . . . 2:1 Maximum fluid working pressure . . . . . . . . . . . 360 psi (2.5 MPa, 2 5 bar) Maximum air inlet pressure . . . . . . . . . . . . . . . 180 psi (1.2 MPa, 12 bar) Pump cycles per 1 gallon (3.8 liters) . . . . . . . . 40 Maximum recom men[...]

  • Page 28

    Technica l Data 28 312766N Performan ce Chart Calculate Fluid Outlet Pressure (black curves) To cal culate f luid ou tlet press ure (M Pa/ba r/psi ) at a specifi c fl uid fl ow (l pm/gpm ) and oper atin g air pressu re (MPa/ba r/p si), use the f ollow ing instru ctions and pump da ta chart. 1. Lo cate desire d flu id flo w alon g bott om of chart. [...]

  • Page 29

    Technical Dat a 312766N 29[...]

  • Page 30

    All written and visual data contained in this document reflects the latest product information available at the time of publica tion. Graco rese rves the right to make changes at any time without notice. For patent information, see ww w.graco.com/patents. This m anual contains English. MM 312766 Graco H eadquarte rs: Min neapol is International O f[...]