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Graco Series B manual

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Table of contents for the manual

  • Page 1

    Instructions – Parts List GRACO INC.ąP .O. BOX 1441ąMINNEAPOLIS, MNą55440-1441 Copyright 1995, Graco Inc. is registered to I.S. EN ISO 9001 3:1 Fire–Ball r 425 Pump For pumping non–corrosive and non–abrasive oils and lubricants. Model 237526, Series B 540 psi (3.7 MPa, 37 bar) Maximum Working Pressure 180 psi (1.2 MPa, 12 bar) Maximum Ai[...]

  • Page 2

    2 308485 Symbols W arning Symbol W ARNING This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions. Caution Symbol CAUTION This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions. EQUIPMENT MISUSE HAZARD Equipment misuse can cause the [...]

  • Page 3

    3 308485 HAZARDOUS FLUIDS Improper handling of hazardous fluids or inhaling toxic fumes can cause extremely serious injury or death from splashing in the eyes, ingestion, or bodily contamination.  Know the specific hazards of the fluid you are using.  Store hazardous fluid in an approved container . Dispose of hazardous fluid according to all[...]

  • Page 4

    4 308485 MOVING P ARTS HAZARD Moving parts, such as the air motor piston, can pinch or amputate your fingers.  Keep clear of all moving parts when starting or operating the pump.  Before servicing the equipment, follow the Pressure Relief Procedure on page 8 to prevent the equipment from starting unexpectedly . FIRE AND EXPLOSION HAZARD Impro[...]

  • Page 5

    5 308485 Installation The typical installation shown in Fig. 1 is only a guide for selecting and installing a pump; it is not an actual system design. Contact your Graco representative for assistance in designing a system to suit your needs. D N A C A KEY A Bleed-type m aster air valve (required) B Air line filter C Air regulator and gauge D Pump r[...]

  • Page 6

    6 308485 Installation System Accessories CAUTION Do not hang the air accessories directly on the air inlet (E). The fittings are not strong enough to support the accessories and may cause one or more to break. Provide a bracket on which to mount the accessories. Three accessories are required in your system: an air bleed device, a fluid drain valve[...]

  • Page 7

    7 308485 Installation Grounding Proper grounding is an essential part of maintaining a safe system. T o reduce the risk of static sparking, ground the pump. Check your local electrical code for detailed grounding instructions for your area and type of equipment. Be sure to ground all of the following equipment:  Pump: Use a ground wire and clamp[...]

  • Page 8

    8 308485 Operation Pressure Relief Procedure SKIN INJECTION HAZARD T o reduce the risk of serious bodily injury , including fluid injection or splash- ing in the eyes or on the skin, always follow this procedure whenever you shut off the pump, when checking or servicing any part of the system, when installing or changing dispensing devices, and whe[...]

  • Page 9

    9 308485 T roubleshooting INJECTION HAZARD T o reduce the risk of serious bodily injury , including fluid injection or splash- ing in the eyes or on the skin, always follow the Pressure Relief Procedure on page 8 whenever you shut off the pump, when checking or servicing any part of the system, when installing or changing dispensing devices, and wh[...]

  • Page 10

    10 308485 Air Motor and Throat Service Before Y ou Start  Be sure you have all necessary parts on hand. Air Motor Repair Kit 207385 includes repair parts for the motor . Use all the parts in the kit for the best results. Parts included in the kit are marked with one asterisk, for example (19*), in the text and drawings. See the Parts List on pag[...]

  • Page 11

    11 308485 Air Motor and Throat Service 10. Pull the piston assembly from the air motor base (28), and set it aside. 1 1. Remove the vee block seal (10  ) with a pick, and clean the groove in the air motor base (28). Remove any dirt in the groove, and wipe the groove clean with a cloth. 12. Inspect the air motor for damaged or worn inlet valve gr[...]

  • Page 12

    12 308485 Air Motor and Throat Service 25 Tu r n lock- wire s up. Fig. 4 Cut off tops of poppets as indicated by dotted lines. 0.125” (3.18 mm) Cutaway View M 13 31 22* 21* 32* 21* 32* 27 28 16 23 32* 21* 17* 31 14 17* 21* 32* 26* 27 L 26* 14 19* 04423 04422 12 13 15 15 Reassembly 1. Place the piston rod (29) flats in the vice with the air motor [...]

  • Page 13

    13 308485 Air Motor and Throat Service 12. Slide the piston rod (29) down through the pack- ing, and lower the piston (27) into the air motor base (28). 13. Clamp the air motor base (28) in a vise horizontally by closing the vice jaws on the flange. 14. Install the u-cup packing (107  ) with the lips up, and place the piston washer (1 13) on the[...]

  • Page 14

    14 308485 Air Motor Parts Drawing 06027 16 24 11 30 22* 21* 25 23 12 21* 17* 26* *19 27b 27a 31 15 13 27c 32* 29 3 20* 10  11 3 107  7 103 108  11 0 11 2 104 111 105  28 18 109 1 2 1 2 T orque to 40 to 60 ft-lb T orque to 95 to 105 ft-lb 3 4 Lips face up Lips face down 3 4 5 27[...]

  • Page 15

    15 308485 Air Motor Parts List Ref. No. Part N o. Description Qty . Ref. No. Part No. Description Qty . 3 101578 SCREW , cap, hex hd 8 5 102656 MUFFLER, air exhaust 1 7 1 16343 SCREW , grounding 1 10  1 12130 SEAL, pump 1 1 1 156698 P ACKING, o-ring 1 12 158359 ACTUA TOR, valve, air 2 13 158360 YOKE, rod, trip 1 15 158362 PIN, toggle 2 16 158364[...]

  • Page 16

    T11069 11 3 107  103 108  11 0 11 2 104 105  109 111 101 1 Lips face up 1 16 308485 Displacement Pump Parts Drawing and List Model 237526, Series B Ref No. Part No. Description Qty . Ref No. Part No. Description Qty . 10  1 12130 SEAL, block, vee shown on page 14 1 101 AIR MOTOR See parts on page 14 1 103 101 178 BALL, piston; metallic [...]

  • Page 17

    17 308485 Dimensions 06024 1 1.0 in. (279 mm) grounding screw 3/4-in. npt(f) muffler port 1/2-in. npt(f) air inlet 29.4 in. (747 mm ) MODEL 237526 Series B 3/4-in. npt(f) fluid outlet 1 1/2-in. npt(f) fluid intake Note: For sealed tank mounting, use gasket 192658.[...]

  • Page 18

    18 308485 Mounting Hole Layout 4.12 in. (104.6 mm) diam- eter clearance hole 45  Four 0.406-in. (10.3 mm) holes on 7-in. (177.8 mm) bolt circle 8.0 in. (203.2 mm) diameter of flange T echnical Data Maximum working pressure 540 psi (3.7 MPa, 37 bar) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 19

    19 308485 0 50 100 150 200 250 300 350 400 450 500 02468 1 0 1 2 Outlet Pressure vs. Outlet Flow A 40 psi (2.8 bar) air pressure B 70 psi (4.8 bar) air pressure C 100 psi (6.9 bar) air pressure D 150 psi (10.4 bar) air pressure Outlet Pressure (PSI) Performance Chart Differential Air Motor A B C D 0 10 20 30 40 50 60 70 02468 1 0 1 2 Inlet Air Cons[...]

  • Page 20

    20 308485 Graco Standard W arranty Graco w arrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco w ill, for a period of twelve months from th[...]