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Graco 310643u manual

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Table of contents for the manual

  • Page 1

    310643U EN Repair Displacement Pump Use only genuine Graco replacem ent parts. Use of non-Graco replacement parts may void warranty. 3300 psi (22.7 MPa, 227 bar) Ma ximum Working Pressure Model 248204, Series A UltraMax II and Ultimate MX II 695/795 ASM Zip-Spray 2700 Plus, 3100 Plus ASM AllPro Mach 8600 Plus and 11000 Plus ASM H2700 Plus Model 255[...]

  • Page 2

    Warnings 2 310643U Table of Contents Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Parts - Pump 248204, 2770 69, 255968 . . . . . . . . . 14 Parts - Pump 248205 , 249057, 24905 9, 277070, 257146 . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 3

    Service 310643U 3 Service Pressure Relief Procedure Follow the Pressure Relief Pr ocedure whenever you see this symbol. 1. Engage trig ger lock. 2. Turn ON/OFF switch to OFF. 3. Unplug power cord. 4. Disengage trigger lock. Ho ld metal part of gun against grounded metal pail an d trigger gun into pail to relieve pressure. 5. Engage the tr igger loc[...]

  • Page 4

    Service 4 310643U Repair When Pump is Separated From Sprayer Disassembling the Pump 1. Remove packin g nut (202) and o-rin g (228). 2. Unscrew intake va lve from cylinder. 3. Disassemble intake valve. Clean and inspect o-ring (227). NOTE: A pick may be require d to remove o-ring. 4. Tap piston rod out of cylin der with a hammer or flip over and tap[...]

  • Page 5

    Service 310643U 5 6. Unscrew piston valve from piston rod. Clean and inspect parts. The piston has a special thread lock- ing/sealing patch. Do not remove the patch. The patch allows four disassembly/assembly procedur es before it is nece ssary to apply thre ad sealant to the threads. 7. Remove packings and gla nds from piston rod. 8. Remove throat[...]

  • Page 6

    Service 6 310643U 2. Install ball (206 ) in pisto n rod. If th read sealan t is applied to piston valve threads, make sure that non e gets on ball. 3. Tighten piston valve to piston ro d as specified: 4. Soak all leather packing s in SAE 30W oil for one hour minimum prior to assembly. Place male gland (204) in cylinder. Alternate ly stack UHMWPE (2[...]

  • Page 7

    Service 310643U 7 7. Slide piston a ssembly into bottom of sleeve. 8. Grease top inch or two of piston rod that will go through the cylinder throat packings. 9. Grease o-rings (221) and pla ce on sleeve. Slide sleeve/piston ro d assembly into bottom of cylinder. Replace o-ring (207) if de sired. NOTE: O-ring (207) is not required fo r safe pump ope[...]

  • Page 8

    Service 8 310643U 12. Install intake valve on cylin der. If a wrench is used torque as follows: 13. Torque packing nu t (202) down onto adjustm ent spacer (22 8) 100 + /- 10 in-lb. (11.3 +/- 1.1 N•m) 14. Remove o-ring (22 8) when pump packings begin to leak after extended use. Then tighten packing nu t down until leakage stops or lessens. This al[...]

  • Page 9

    Service 310643U 9 Repair When Pump is On Sprayer 1. Perform Pressure Relief Pro cedure , page 3. 2. Remove intake valve. 3. Push up ret aining spring ( 26). 4. Push out pin (29). 5. Disassemble intake valve. Clean and inspect. O-ring (227) may re quire a pick for remo val. 6. Remove pisto n rod and sleeve. ti4258c ti4258a 26 29 26 ti4258b ti4258b 2[...]

  • Page 10

    Service 10 310643U 7. Invert piston rod and sleeve and pound on hard sur- face until piston rod comes out of sleeve. Mark IV models: Remove sleeve spacer from sleeve. 8. Remove packin g nut (202 ). 9. Invert piston rod and insert into cylinder to force out throat packings. 10. Insert piston rod into cylinder with pin hole up and piston valve down. [...]

  • Page 11

    Service 310643U 11 14. Remove packings and glands from piston rod. 15. Soak all le ather pack ings in S AE 30W oil fo r one hour minimum prior to assembly. Stack male gland (219) on piston rod. Alternately stack UHMWPE (208 )and leather (218) packings (note orientation) on piston rod. Instal l female gland (217 ). Instal l piston w iper (216) and b[...]

  • Page 12

    Service 12 310643U 18. Slide piston assembly into bottom of sleeve. Make sure V-packing and u- cup are not rolled over or damaged. Mark IV models: Install o-ring (2 31) on sleeve spacer (230). Install sleeve spacer on sleeve. 19. Grease top inch or two of piston rod that will go through the cylinder throat packings. 20. Grease o-ring (221) and plac[...]

  • Page 13

    Service 310643U 13 24. Reassemble intake valve with new o-rings (227) and (230), seat (212) and b all (214). Seat may b e flipped over and used on other side. Cle an seat thoroughly. 25. Install intake valve on cy linder. Torque as follows: Pump Packings Models Torque 248204, 253056, 255968, 277069 70 +/- 5 ft -lb (94.9 + /-6.8 N• m) 248205, 2490[...]

  • Page 14

    Parts - Pump 2482 04, 277069, 2559 68 14 310643U Parts - Pump 2482 04, 277069, 255968 Series A Ref. Part Descriptio n Qty. 201 179810 SEAL , throat 1 202 193046 NUT, packing 1 203* 192692 V-PACKING , throat, V-Max, UHMWPE, blue 3 204* 15C987 GLAND, male, throat, 1 205 CYLINDER, pump 243346 Model 248204, 255968 1 243346 Model 16X428 1 206* 105444 BA[...]

  • Page 15

    Parts - Pump 2482 05, 249057, 249059, 2 77070, 257146 310643U 15 Parts - Pump 248205, 2490 57, 249059, 277070, 257146 Series A Ref. Part Description Qty. 201  183171 PLUG 1 202 193032 NUT, packing 1 203*  193124 V-PACKING, throat, V-Max, UHMWPE, blue 4 204*  15C989 GLAND, packing, male, throat 1 205 CYLINDER, pump 1 243347 Model 248205, 27[...]

  • Page 16

    Parts - Pump 253056 16 310643U Parts - Pump 253056 Ref. Part Description Qty. 201*  179810 SEAL, throat 1 202 193046 NUT, packing 1 203*  192692 V-PACKING, throat, V-Max, UHMWPE, blue 3 204*  15C987 GLAND, male, throat 1 205 287876 CYLINDER, pump 1 206* BALL, check 1 105444* BALL, sst, 0.3125 in. (optional) 119259  BALL, ceramic, 0.3125[...]

  • Page 17

    Technical Data 310643U 17 Technical Data U.S. Metric Maximum Working Pressure 3300 psi 227 bar, 22.7 MPa Fluid Inlet Size 1-5/16-12 un(m) 1-5/16-12 un(m ) Fluid Outlet Size 248204, 255968, 2770 69 1/4 npt(f) 248205, 249057, 249059, 253056, 277070, 257146 3/8 np t(f) Wetted Parts stainless s teel, PTFE, le ather, nylon , zinc-plate d carbon st eel, [...]

  • Page 18

    All written and visual data contained in this document reflects the latest product info r mation available at the time of publica tion. Graco reserves the right to make changes a t any time without notice. Original instructions. This manual contains Eng lish. MM 310643 Graco Headquarters: Minne apolis International Offices: Belgium, China, Japan, K[...]