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Graco 24R021 manual

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Table of contents for the manual

  • Page 1

    332198C EN Instr uctions - P ar ts 2K Man ual Dispense V alve For use with two component pr oportioners to mix and dis pense beads of n on-abrasive material. For prof essional use only . Not appro ved f or use in Eur opean e xplosive atmosphere locations. Model 24R021 2000 psi (14 MP a, 137 bar) Maximum Fluid Working Pressure Impor tant Safety Inst[...]

  • Page 2

    Related Manua ls 2 332198C Contents Related M anuals . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Important Isocy anate (ISO) Information . . . . . . . . 5 Isocyanate Conditions . . . . . . . . . . . . . . . . . . . . . 5 Mater ial Self-ignition . . . . . . . .[...]

  • Page 3

    Warnings 332198C 3 Wa r n i n g s The f ollowing w arnings are for t he setup , use, g rounding, maintenance , and repair of this equipment . The e xclama- tion point symbol ale r ts you to a gener al warning and the hazard symbols ref er to procedure-specific risks. When these symbols appear in the bod y of this manual or on warning labels, ref er[...]

  • Page 4

    Warnings 4 332198C EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injur y . • Do not operate the u nit when fatigued or under the influenc e of dr ugs or alc ohol. • Do not e xceed the maximum working pressure or temperature rating of the lo west rated system component. See T echnical Data in all equipmen t manuals . • Use fluids a[...]

  • Page 5

    Important Isocyanate (ISO) Information 332198C 5 Impor tant Isocy anate (ISO) Inf ormation Isocy anates (ISO) are catalysts used in two component ma terials. Isocy anate Conditions Material Self-ignition K eep Components A (ISO) and B (RES) Separate Moisture Sensitivity of Isocy anates Exposure to moisture (such as humidity) will cause ISO to par t[...]

  • Page 6

    Important Isocyana te (ISO) Informa tion 6 332198C Changing Materials NO TIC E Changing the material types used in your equipment requires special attent ion to av oid equipment damage and do wntime . • When changing materials , flush the equipment multiple times to ensur e it is thoroughly clean. • Alwa ys clean the f luid inlet strainers aft [...]

  • Page 7

    Installation 332198C 7 Installation 1. Relie ve all system pressure before installing the dis- pense v alve . 2. Ground t he gun through connection to a properly grounde d fluid hose and pump . See your system manual f or fur t her information . 3. Thread the ha ndle (K) onto the manif old (L). 4. Connect the gun fluid supply hoses to th e A (ISO) [...]

  • Page 8

    Operation 8 332198C Operation Prime P erform this procedure whene v er air is introduced into the material lin es, such as after connecting the material supply lines to the dispense v alv e. 1. P erf or m Pressure Relief Pr ocedure on page 10. 2. If a static mix er is installed, remov e static mixer . 3. Use le v er (H) to open the dispense v alv e[...]

  • Page 9

    Operation 332198C 9 Ratio Chec king NO TE: Use ratio ch eck nozzle 2552 47 with retaining nut 512292. Purchase separ ately . The output mix ra tio of y our proportioner can be chec ked b y dispensin g the two fluid s separately out of the nosepiece into t ared cups. Th e cups can then be weighed and t he weights divided to get th e mix ratio b y we[...]

  • Page 10

    Operation 10 332198C Pressure Relief Pr ocedure F ollow t he Pressure Relief Pr ocedure whene ver yo u see this symbol. This procedure describes ho w to relie v e pressure from the dispens e valv e. See the supply system manual f or instructions on relie ving pr essure from the entire sys- tem. 1. Shut off ma terial s upply pumps. 2. With the v alv[...]

  • Page 11

    Maintenance 332198C 11 Install Restrictors or Plugs T wo 0.02 4 in. restrictors are installed with the gun. An e xtra 0.032 in. re strictor is included with the gun. If nec- essary , use this restrictor to balance the pr essures. Optional restrictors in various sizes are also av ailab le. Restrictors create back pressure and mak e up for vis- cosit[...]

  • Page 12

    Troubleshooting 12 332198C T r oubleshooting Prob lem Cause Solution Pressure is higher on one side when setting p ressure with fu nction knob . Pump intake v alv e par tially pl ugged. Clean pump intake v alve. Air in hose. Fluid is compressib le. Purge air from hose. Unequal size hoses. Use matching ho ses. Pressures are no t balanced when runnin[...]

  • Page 13

    Parts 332198C 13 Pa r t s --- Not f or sale.  Items are shipped loose. 8 NO TE: Apply thread sealant on all tapered threa d fittings. When installing a new ball v alve (8), remo ve the acorn nuts and handle from the ball valv es (8). Keep the acorn nuts, discard the handle. Install and tighten ball valves (8) so that the studs are pointing awa y[...]

  • Page 14

    Accessories 14 332198C Accessories Restrictors 249765 Restrictor Kit Includes one each of restrictor siz es 0.018, 0.024, 0.032, 0.040, 0.062, and 0.094 in., one plug with no restri ction, package of 10 scree ns, and package of 6 o-ri ngs. 15E370 Plug Fits restrictor por t, but with minima l restriction. Uses 249036 O-ring Kit. 249036 Restrictor O-[...]

  • Page 15

    Technical Data 332198C 15 T ypical Restrictor Pressure Drop Te c h n i c a l D a t a F IG . 2 Restrict or Fitting (AA) 249036 O-ring (CC) 249037 Screen (BB) Restrictors use 40 mesh screens and o-rings. Order 249037 Screens (package of 10) and 249036 O-rings (package of 6). 0.094 0.062 0.040 0.032 0.024 0.018 15E377 15E376 15E375 15E374 1 5E373 15E3[...]

  • Page 16

    All written and visual data con tained in th is document reflects the late st product information available at the time of pu blica tion. Graco reserves the right to make changes at any time without notice. For patent information, see www.graco.com/pate nts. Original instructions. This manual contains English. MM 332198 Graco Headquarters: Minneapo[...]