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Graco 255968 manual

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Table of contents for the manual

  • Page 1

    Repair Disp lacemen t Pu mp 310643T EN 8016A 3300 psi (227 bar , 22.7 MPa) Maximum Working P ressure Model 248204, Series A Ultra r M ax II and Ultimat e Mx I I 695 and 795 ASM Z ip- - S pray t 2700 Plus , 3100 Plus ASM AllPro Mac h 8600 Plus and 1 1000 Plus ASM H2700 Plus Model 255968, Series A ASM 3600G P lus Model 248205, Series A Ultra M ax II [...]

  • Page 2

    2 310643 T able of Contents W arnings 2 ...................................... Service 3 ....................................... T echnical Dat a 15 ................................ Parts, Pump 248204, 255968 16 ............................. 248205, 249057, 249059, 277070, 257146 17 ..... 253056 18 ..................................... W arrant y 2[...]

  • Page 3

    3 310643 Service Pr essure Relief Pr ocedure W ARNING PRESSURIZED EQUIPMENT H A Z A RD The system pressure must be manually relie ved to preve nt the system from star ting or spraying acc identally . T o reduce t he risk of an injury f rom ac cidental s pray fr om the gun, splashing f luid, or m oving part s, follow t he Pressure Rel ief Proced ure[...]

  • Page 4

    4 310643 Service Repair When Pum p Is Off The Sprayer Disassemb li ng the p ump Fig. 1. Rem ove packing nut (202) and throat adjus t- ment s pacer (228). Fig. 1 7568A 228 ti2332a 202 Fig. 2. Unsc rew intak e valve f rom cy linder . Fig. 2 7569A Fig. 3. Disas semble int ake valve. Clean and inspect . O-r ing (227) m ay require a pic k for r emoval. [...]

  • Page 5

    5 310643 Service W ARNING COMP ONENT RUPTURE HAZ ARD Do not cl ean or wipe the pist on valve threads . Cleaning t he piston v alve thr eads could dest roy t he special sealing patch and c ause the pis ton valv e to com e loose during operat ion, caus ing pump burst ing and possible ser ious bodily injury . Fig. 6. Unsc rew pist on valve f rom pist [...]

  • Page 6

    6 310643 Service Fig. 10. I nstall ball (206) in piston rod. If Loct ite r is ap- plied to pist on valve t hreads, ensure t hat none get s on ball. Fig. 10 206 7575A Fig. 1 1. T ighten pist on valve t o pist on rod as spec ified: Fig. 1 1 T orque t o 27 +/- - 3 ft -l b (248204, 253056, 255968, 277069) T orque t o 55 +/- - 3 ft -l b (248205, 249057,[...]

  • Page 7

    7 310643 Service Fig. 14. G rease pist on packings . Fig. 14 ti7578c CAUTION Do not slide pis ton ass embly int o top of sleeve as this m ay damage pis ton packing. Fig. 15. Slide pis ton ass embly into bot tom of sleeve. Fig. 15 7577A Fig. 16. G rease t op inch or t wo of pist on rod that will go thr ough the cylinder throat packings. 7579A Fig. 1[...]

  • Page 8

    8 310643 Service Fig. 18. Mar k IV: Inst all o-ring ( 231) on sleeve s pacer (230) and ins tall sleev e spacer on s leeve. Fig. 18 ti7340a 231 230 Fig. 19. Reass emble intak e valve with new o- ring (227), s eat (212) and ball (214). Seat may be flipped over and us ed on other s ide. Clean seat thoroughly . Fig. 19 227 7570f 212 214 Fig. 20. I nsta[...]

  • Page 9

    9 310643 Service Repair W hen Pump Is On The Spr ayer W ARNING SKIN I NJECT IO N HAZARD T o reduce t he risk of serious injury , whenever y ou are instr ucted t o relieve press ure, f ollow the Pressu re Reli ef Pr oce dure on page 3. Fig. 1. Remove in take valve. Fig. 1 ti4258a Fig. 2. Pus h up retaining s pring (26). Fig. 2 26 ti4258a Fig. 3. P u[...]

  • Page 10

    10 310643 Service Fig. 5. Remov e piston r od and sleeve. 7746A Fig. 5 Fig. 5. I nvert piston rod and s leeve and pound on hard surf ace until pis ton rod c omes out of sleev e. Mar k IV: Remove s leeve spacer from s leeve. Fig. 6 7572A ti7339a Fig. 7. Rem ove packing nut (202) 7726A Fig. 7 202 Fig. 8. I nvert piston rod and ins ert int o cylinder [...]

  • Page 11

    11 310643 Service Fig. 10. Remov e piston v alve from piston r od with a wrench. Fig. 10 ti4258a Fig. 1 1. Remov e pin and piston r od from cylinder . Fig. 1 1 ti4258a Fig. 12. Soak all leather pack ings in SAE 30W oil for 1 hour minimum pr ior to assembly . Stac k male gland (204). Alter nately st ack UHMW PE (203) and leat her (223) pac kings (no[...]

  • Page 12

    12 310643 Service Fig. 14. Soak all leather pack ings in SAE 30W oil for 1 hour minimum pr ior to assembly . Stac k male gland (219) on pis ton rod. Alter nately s tack UHMWPE (208) and leather (218) packings (note or ientation) on piston rod. Inst all female gland ( 217). I nstall pis ton wiper (216) and backup washer ( 229) (note orient ation) on[...]

  • Page 13

    13 310643 Service Fig. 19. G rease o-r ing (221) and place on s leeve. S lide sleeve/ piston r od assembly into bott om of cylinder . Re- place o-r ing (207) if desired. Note: O-r ing (207) is not required f or saf e pump opera- tion. Fig. 19 207 221 ti4258a Fig. 21. T orque s eal and packing nut (202) down onto thr oat adjust ment s pacer (228) to[...]

  • Page 14

    14 310643 Service Fig. 23. Reass emble intak e valve with new o- rings (227) and (230), seat (212) and ball (214). Seat may be flipped over and used on other side. Clean seat thor oughly . Fig. 23 227 7570f 230 212 214 Fig. 24. I nstall int ake valv e on cylinder . T orque: 70 +/ - - 5 ft -lb (model 248204, 253056, 255968, 277069) 80 +/ - - 5 ft -l[...]

  • Page 15

    15 310643 Service Fig 25 223 203 218 V-Ma x t UHWMPE, blue 208 217 213 214 204 221 224 205 219 215 212 227 222 202 221 216 206 210 Leather Leather 201 220 228 207 V-Ma x t UHWMPE, blue Pump 248204 2 7683d 229 230 T echnical D ata Maxim um working pr essure 3300 psi ............... (227 bar , 22. 7 MPa) Fluid inlet size 1-5/ 16- - 12 un(m ) ........[...]

  • Page 16

    16 310643 Parts - - Pump 248204, 277069, 255968 Model 248204, Series A; 277069, S eries A ; 255968, Series A Ref No. Part No. Descrip tio n Qty . 201 179810 SEAL, throat 1 202 193046 NUT , packing 1 203* 192692 V -P ACKING , thr oat, 3 V -Max t UHMW PE, blue 204* 15C987 GLAND, m ale, throat 1 205 CYLINDE R, pump 243346 Model 248204, 255968 1 243346[...]

  • Page 17

    17 310643 Parts - - Pumps 248205, 249057, 249059, 277070, 257146 M o de l 248205, Series A ; 249057, Ser ies A; 249059, Ser ies A; 277070, Series A ; 257146, Series A Ref No. Part No. Descript i on Qty . 201+ 183171 PLUG 1 202 193032 NUT , packing 1 203*+ 193124 V -P ACKING 4 V- M a x t UHMWPE, blue 204*+ 15C989 GLAND, packing, male, t hr oat 1 205[...]

  • Page 18

    18 310643 Parts - - Pump 253056 Ref No. Part No. Descrip tio n Qty . 201* § 179810 SEAL , throat 1 202 193046 NUT , packing 1 203* § 192692 V -P ACKI NG, t hroat , 3 V -Max t UHMW PE, blue 204* § 15C987 G LAND, male, t hroat 1 205 287876 CYLINDE R, pump 1 206* 105444 BALL, sst , 0.3125 in. (optional) 1 206 § 1 19259 BALL, ceram ic, 0.3125 in. ([...]

  • Page 19

    19 310643 Notes[...]

  • Page 20

    20 310643 Graco Standard W arranty Graco w arr ants al l equi pment refer enced in t his docum ent whi ch is manufact ured by Graco and beari ng its name to be free f rom defect s in m ater ial and workmanshi p on the date of sale t o the or i ginal purchaser f or use. W it h the exception of any special, extended, or l im it ed warr ant y publi sh[...]