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Graco 24R491 manual

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Table of contents for the manual

  • Page 1

    Instr uctions/P ar ts SaniFor ce ™ Air Motor s 3A1211M EN For use on SaniForce ™ piston pumps, whic h are used to transfer medium to high viscosity fluids in applications requiring high sanitation. For pr ofessional use only . Model 24G785, Series A, 3.5 in. Air Motor Model 24G786, Series A, 6.0 in. Air Motor Model 24G787, Series A, 7.5 in. Air[...]

  • Page 2

    Related Manuals 2 3A1211M Contents R e l a t e dM a n u a l s ........................... 2 W a r n i n g s ................................. 3 Models ................................... 5 Component Identification .................... 6 Grounding .............................. 6 T roub leshooting ............................ 7 Repair ..............[...]

  • Page 3

    Warnings 3A1211M 3 W arnings The f ollowing warnings are for the setup , use, g rounding, maintenance, and repair of this equipment. The e xclama- tion point symbol aler ts you to a general w ar ning and the hazard symbol refers to procedure-specific risk. When these symbols appear in the body of this manual, ref er back to these w ar nings. Additi[...]

  • Page 4

    Warnings 4 3A1211M EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injur y . • Do not operate the unit when fatigued or under the influence of drugs or alcohol. • Do not exceed the maximum w or king pressure or temperature rating of the lo west rated system component. See T echnical Data in all equipment manuals. • Use fluids and so[...]

  • Page 5

    Models 3A1211M 5 Models Check y our motor’ s identification plate (ID) for the 6-digit part number of y our motor . ti16228a Air Motor Pa r t Number Air Motor in Kit with Shrouds Series Displacement (cc per cyc le) Stroke (in.) Piston Diameter , in. (mm) Maximum Air Inlet Pressure psi (MP a, bar) 24G785 24J765 A 800 4.75 3.5 (89) 100 psi (0.7 MP [...]

  • Page 6

    Component Identification 6 3A1211M Component Identification Key: Air Motor Kit Components A Air valv e B Pilot valv e (bottom pilot valv e is out of view) C T op cov er D Bottom cov er E Manif old F Ground screw Lift Ring, Shrouds, and Fittings G Air inlet, 1/2 in. npt(f) H Air outlet, 3/4 in. npt J Lift Ring K Upper Shroud L Lower Shroud (out of v[...]

  • Page 7

    Troubleshooting 3A1211M 7 T roub leshooting NO TE: Check all possib le problems and causes bef ore disassembling the pump . Relieve the pressure bef ore checking or servicing the equipment. Prob lem Cause Solution Air motor will not run. Damaged air v alv e (17). Replace or ser vice air v alv e (17). See page 9. Damaged pilot v alv e (19). Replace [...]

  • Page 8

    Repair 8 3A1211M Repair Pre ventive Maintenance Schedule The operating conditions of y our system deter mine how often maintenance is required. Establish a pre v entive maintenance schedule by recording when and what kind of maintenance is needed, and then determine a regular schedule f or checking your system. Pressure Relief Pr ocedure 1. Shut of[...]

  • Page 9

    Repair 3A1211M 9 Repair Air V alve Replace Complete Air V alve 1. Stop the pump at the middle of its stroke . Follo w Pressure Relief Procedure , page 8. 2. Disconnect air lines. 3. See Remove the Shr oud , page 8. NO TE: Y ou do not need to remo ve the bottom shroud to replace or repair the air v alve. 4. See Pa r t s , page 14. Remov e screws (18[...]

  • Page 10

    Repair 10 3A1211M Reassemble the Air V alve 1. Lubricate detent cam (104 ◆ ) and install into hous- ing. 2. Lubricate the u-cups (108† ◆ ) and install on the pis- ton (102 ◆ ) with lips f acing toward the center of the piston. 3. Lubricate both ends of the piston (102 ◆ ) and install it in the housing. 4. Lubricate and install the detent [...]

  • Page 11

    Repair 3A1211M 11 7. Install the spring (111 ◆ ). Lubr icate and install the air v alv e cup (112 ◆ ). Align the small round magnet with the air inlet. 8. Install the v alv e plate (105 ◆ ). Tighten the screws (109† ◆ )t oh o l di ti np l a c e . Replace Pilot V alves 1. Stop the pump at the middle of its stroke . Follo w Pressure Relief [...]

  • Page 12

    Repair 12 3A1211M Repair Air Motor NO TE: Air Motor Seal Kits are av ailable. See page 17 f or the correct kit for y our motor . Parts included in the kit are marked with an asterisk (*). For best results , use all the par ts in the kit. Preliminary Steps 1. Stop the pump at the middle of its stroke . Follo w Pressure Relief Procedure , page 8. 2. [...]

  • Page 13

    Repair 3A1211M 13 9. Carefully place the bottom cov er (1) on the cylinder (11), sliding the rod through the bearing. The mani- f old surfaces of the top and bottom co vers must align. 10. Install t he tie bolts (10) hand tight. 11. Install two gask ets (14*) on the manifold (15). Install the manif old (15). T orque bolts to 95-105 in-lb (10.7-11.9[...]

  • Page 14

    Parts 14 3A1211M Pa r t s Air Motor Kit, plus Lift Ring, Fittings, Shr ouds, and F asteners 19 13 29 11 17 14* 9* 9* 33* 3* 8* 5 15 18 19 10 16* ◆ 2 2 2 2 2 2 2 Apply NLGI No . 1, bentone-based grease. 1 32 ti116225b 28 1 2 31 1 ti16232a 39 2 40 41 3 U-cup faces up. Flange (bottom seal only) faces down. See F IG . 7, page 12. 3 3 18 42 43 46 48 4[...]

  • Page 15

    Parts 3A1211M 15 Air Motor P ar ts — All Models (See page 16 f or Shroud Kits, Fittings, and F asteners, sold separately .) Ref. Description Qty Model 24G785 Model 24G786 Model 24R491 Model 24G787 Model 24R015 Model 24W754 1 CO VER, lower , assembly; includes Refs. 3, 4, 9, 12, 19, 28, and 33 1 24A545 24A549 24A553 24A549 3* U-CUP 2 Not sold sepa[...]

  • Page 16

    Parts 16 3A1211M * Included in Air Motor Seal Kit. See page 17. ◆ Included in Air V alve Repair Kit. See page 18. ‡ The upper cov er assembly includes two adapter o-rings. See Ref . 32 for the correct o-ring to use f or your motor . ▲ Replacement W ar ning labels, signs, tags , and cards are av ailable at no cost. Shr oud Kits, Fittings, and [...]

  • Page 17

    Parts 3A1211M 17 Air Motor Seal Kits Model 24A352 Air V alve P ar ts Air Motor Model Air Motor Seal Kit 24G785 16G524 24G786, 24R491, or 24W754 24A547 24G787 or 24R015 24A551 110 ◆✠ 107 ✠ 107 ✠ 109† ◆ 105 ◆ 112 ◆ 111 ◆ 103 ◆ 102 ◆ ti11840a 101 104 ◆ 110 ◆✠ 1 1 1 1 1 1 Apply lubricant. 106† ✠◆ 106† ✠◆ 108† ?[...]

  • Page 18

    Parts 18 3A1211M Air V alve Kits NO TE: Air valv e par ts are not sold individually . The table belo w shows possible kit options f or each par t. † Included in Air V alve Seal Kit 24A536. ◆ Included in Air V alve Repair Kit 24A538. ✠ Included in Air V alve End Cap Kit 24A361. Ref. Description Qty . Air V alve Repair Kit 24A538 Air V alve Sea[...]

  • Page 19

    Dimensions 3A1211M 19 Dimensions Air Motor Model A inch (mm) B inch (mm) C inch (mm) D inch (mm) E inch (mm) W eight lb (kg) 24G785 13.7 (348) 16.3 (414) 10.0 (254) 7.7 (196) 9.2 (234) 12.0 (5.4) 24G786 14.5 (368) 18.8 (478) 14.2 (361) 10.9 (277) 11.0 (279) 26.0 (11.8) 24G787 14.5 (368) 18.8 (478) 14.2 (361) 10.9 (277) 11.0 (279) 31.0 (14.1) 24R491[...]

  • Page 20

    Dimensions 20 3A1211M[...]

  • Page 21

    Technical Data 3A1211M 21 T echnical Data * Sound pow er at 70 psi (0.48 MPa, 4.8 bar), 20 cpm. Sound po wer measured per ISO-9614-2. ** Sound pressure was tested 3.28 f eet (1 m) from equipment. Maximum air inlet pressure ....................... 1 0 0p s i( 0 . 7M P a ,7 . 0b a r ) Stroke length .................................. 4 . 7 5i n . A i [...]

  • Page 22

    All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. 2ULJLQDOLQVWUXFWLRQV This manual contains English. MM 3A1211 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Kor[...]