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Graco 234401 manual

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Table of contents for the manual

  • Page 1

    309921N EN Instr uctions - P ar ts List Desiccant Air Dr ying System Model 234401, Series D Maximum Oper ating Pressure 160 psi (1.1 MP a, 11 bar) Maximum T emperat ure 150° F (65° C) Model 24M178, Series B Maximum Oper ating Pressure 175 psi (1.2 MP a, 12 bar) Maximum T emperat ure 150° F (65° C) Includes: Impor tant Sa fety Instruc tions Read[...]

  • Page 2

    How Desiccant Air Drying System Works 2 309921N Ho w Desiccant Air Drying System W orks When air is co mpressed, th e temperature of the air increases, as does it s capacity to hold moisture. As the hot, moist air tr av els do wn through the lines , it cools , allowin g the moisture to conde nse. Filters , dra in traps , and driplegs only remov e l[...]

  • Page 3

    Installation 309921N 3 Installation 1. Bef ore installing air line components, b low out the pipe line to remo v e debris. Be sure air to the regula- tor is clean. Erratic o peration or loss of re gulation is usually caused b y dir t in the regulator . 2. Install the Air Dr ying Syst em as close as possible to the equipm ent it ser ves. Use templat[...]

  • Page 4

    Installation 4 309921N Minim um Pipe Size Recommendations Compressor Main Air Line Size Capacity Length Size 1-1/2 - 2 HP 6 - 9 CFM any 3/4 in. (19 mm) 3 - 5 HP 12 - 20 CFM Up to 200 ft (6 1 m) 3/4 in. (19 mm) Ov er 200 ft (61 m) 1 in. (25.4 mm)) 5 - 10 HP 20 - 40 CFM Up to 100 ft (30. 5) 3/4 in. (19 mm) Ov er 100-200 ft (30.5-61 m) 1 in. (25.4 mm)[...]

  • Page 5

    Installation 309921N 5[...]

  • Page 6

    Operation 6 309921N Operation Model 234401, Series D 1. Attach air ho se(s) to air regulator ou tlet valv e 289165. 2. Attach air hose to main shut-off v alv e 288798. 3. Open main shut-off v alv e 288798 . 4. T ur n the T -hand a djusting screw in or out to adjus t regulator t o desired sett ing. 5. Open outlet valv e 28916 5 to supply air to spr [...]

  • Page 7

    Operation 309921N 7 288789 288787 234404 234397 234402 288798 289165 P art No. Description 234402 Air Filter with auto dr ain; see Man ual 309919 f or par ts inf ormation 234397 Coalescer with auto dr ain; see Manual 309919 f or par ts inf ormation 234404 Desiccant Housing 288787 Air Regulator , self relie ving 288789 Nipple with screen 288798 Shut[...]

  • Page 8

    Maintenance and Repair 8 309921N Pressure Relief Pr ocedure The f ollowing is a basic pressure r elief procedure. Be sure to f ollo w the specific pressure relief pr ocedure in yo ur spra y gun and/or fluid supply equip ment manuals . 1. Close the main air shut-off valv e. 2. T rigger the gun or dispense v alv e and open an y drain valv es to relie[...]

  • Page 9

    Maintenance and Rep air 309921N 9 Desiccant Housing 234404, Series B Desiccant Changeout The desiccant g radually change s color from b lue to pink, indicating it has abso rbed moisture to the sat uration point and needs to be regenera ted or replaced. • T o regenerate Silica Gel desiccant, heat desiccant f or 4 hours at 275°F (1 35°C). • T o[...]

  • Page 10

    Maintenance and Repair 10 309921N Self-Relieving Air Regulator 288787 Be sure air to the regulator is clean. Erratic oper ation or loss of regulation is usually caused b y dir t in the regula- tor . Cleaning 1. Follo w the Pressure Re lief Procedure , page 8. 2. Remov e bottom plug, spring, and v alv e. 3. Remove six screws, and separate regulator [...]

  • Page 11

    Maintenance and Rep air 309921N 11[...]

  • Page 12

    All written and visual data contained in this document reflects the latest product information 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 309921 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Kore[...]