Instruction/ maintenance manual of the product 310643u Graco
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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.
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 .
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 , .
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.
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.
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.
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.
An important point after buying a device Graco 310643u (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Graco 310643u yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Graco 310643u - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco 310643u you will learn all the available features of the product, as well as information on its operation. The information that you get Graco 310643u will certainly help you make a decision on the purchase.
If you already are a holder of Graco 310643u, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Graco 310643u.
However, one of the most important roles played by the user manual is to help in solving problems with Graco 310643u. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco 310643u along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
