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Graco 287834 manual

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Table of contents for the manual

  • Page 1

    311485J EN Operation Displacement Pump - Use with Arc hitectural Coati ngs, P aints, R oof Coatings and Below Grade Coatings - Model 287834 4000 psi (27 .6 MP a, 275.8 bar) Maximum W orking Pressu re Impor tant Safety Instructions Read all warnings and instructions in this manual. Sa v e these instructions. ti7629a[...]

  • Page 2

    Warnings 2 311485J Wa r n i n g s The f ollowing w arnings are for the set up, use, groun ding, maintenance, and repair of this equipment. The e xclama- tion point symbol ale r ts you to a general w arning and the hazard symbols ref er to procedur e-specific risks. When these symbols appear in the body of this man ual, ref er ba c k to these W arni[...]

  • Page 3

    Operation 311485J 3 Operation Pressure Relief Pr ocedure 1. Set pump v alve OFF . T ur n engine OFF . 2. T ur n pressure to low est setting. T rigger gun into pail to reliev e pressure. 3. Open prime v alv e (v er tical). If you suspect that the spray tip or hose is complet ely clogged, or t hat pressur e has no t been fully reliev ed after f ollow[...]

  • Page 4

    Service 4 311485J Service Remo va l 1. Flush pump (36). Stop pump on down stroke if pos- sible . 2. P erform Pressure Relief Pr ocedure , page 3. 3. Remove suction set ( 147) from pump (36). 4. Remove paint and drain lines from filter housing. 5. Using a wrench, loosen filter hou sing fitting (110) and remove housing fr om pump. 6. Using a pliers, [...]

  • Page 5

    Service 311485J 5 8. Separate coupling (125) and re mov e. 9. Using a hammer , loosen jam nut ( 122). Unscre w pump (36 ) from po wer head. 10. Remove pump (36). Ball Adjustment 1. Using a hammer , loosen and remo v e intake v alve (213). 2. Disassemb le and clean all parts and o-rings (207). 3. Select proper ba ll travel for material spra yed. Rea[...]

  • Page 6

    Service 6 311485J Piston Rod Assembl y 1. T ap piston rod out of cylinder with a hammer or flip ov er and tap piston rod out against ben ch. NO TE: Slee v e ma y come out of cylinder with piston rod. 2. If piston rod and sleeve did not separate, invert pis- ton rod ( 222) and sleeve (220) and po und on hard surface until piston rod comes out of sle[...]

  • Page 7

    Service 311485J 7 3. Grease piston rod (2 22) packings and top edge of sleeve (220). 4. Carefully slide piston rod assembly (222) into top edge of slee ve (220). 5. Grease top inch or two of piston rod (222) that will go throug h the cylinde r throat packings. 6. Grease o-ri ng (207) and place on sleeve . Slide one o-ring (207) inside cylinder (205[...]

  • Page 8

    Service 8 311485J 10. Reassemb le intake valve (2 13) as shown. 11. P lace inta ke valve (213) assembly in vice. Install cylinder (205) assembly to intake va lve. Torque to 350 ft-lb (475 N•m). 12. Torq ue packing nut (202) do wn to 50 ft-lb (6 8 N•m). 13. Screw jam nut (12 2) to bottom of pu mp threads (36). Screw pump com pletely up into powe[...]

  • Page 9

    Service 311485J 9 17. Replace clip pin ( 121) to secure. 18. Reinstall filte r housing (110 ). 19. Connect suction hose (147) to pump outlet (3 6). 121 125 ti7809a ti7772a 110 ti7764a 36 147[...]

  • Page 10

    Parts 10 311485J Pa r t s Ref. P a rt Description Qty . 201* 116385 PLUG 1 202 15G198 NUT , p acking 1 203* 15G285 V -P ACKING, UHMWPE, b lue 3 204* 15H250 GLAND , male, th roat 1 205 2878 36 CYLINDER, pump 1 206* 102972 BAL L, sst, 0.875 in. 1 207*† 116377 P A CKING, o-ring 3 208 15G196 GUIDE, ball 1 209 1973 06 SHIM, inlet 3 210 287837 V AL VE,[...]

  • Page 11

    Notes 311485J 11 Notes[...]

  • Page 12

    All written and visual data con tained in th is document reflects the late st product information availabl e at the time of publica tion. Graco reserves the right to make changes at any time without notice. For patent information, see www.graco.com/patents. Original instructions. This manual conta ins English. MM 311485 Graco Headquarters: Minneapo[...]