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Graco 3A0237L Maintenance, Instructions for Replacing Individual A or B Hose, Clean Orifice

Models: 3A0237L

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Maintenance

Maintenance

Maintenance

1.Before disconnecting or repairing hoses, relieve all fluid pressure and shut off electrical power to pro- portioner. See system operation manual.

2.Be sure fluid is cool before disconnecting hoses.

Instructions for Replacing Individual A or B Hose

1.Before disconnecting hoses, relieve all fluid pres- sure and shut off electrical power to proportioner. See system operation manual.

2.Disconnect electrical wire from connectors (5). Dis- connect fluid hose and remove from bundle.

3.For whip hose bundles, see Bundle Individual Whip Hoses on page 26.

4.For hose bundles, see Bundle Individual Heated Hoses on page 28.

Clean Orifice

Only for MD2 Valve using Orifice Block Kit 24E505 and an orifice.

NOTE: 24E505 does not come with an orifice. See on page 39 for orifice part numbers.

1.Follow Pressure Relief Procedure in MD2 valve manual.

2.Use 5/16 in. nut driver to remove orifices.

NOTICE

To prevent cross-contamination of the orifices do not interchange A component and B component parts. The A component orifice is marked with an A.

3. Remove cap from orifice.

NOTE: The cap is held in place with reverse threads.

4.Remove needle from orifice. Thoroughly inspect all o-rings and replace if necessary.

5.If necessary, use drill bit that is the same size as the orifice to drill out the orifice. Orifice size is marked on the orifice.

6.Liberally lubricate all o-rings.

7.Reassemble in reverse order. Torque orifices into fluid housing to 20-30 in-lb (2.26-3.39 N•m).

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3A0237L

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Graco 3A0237L important safety instructions Maintenance, Instructions for Replacing Individual A or B Hose, Clean Orifice

Contents

Important Safety Instructions For use with Graco HFR Metering SystemsHeated Hoses and Applicator KitsContents Related ManualsManual DescriptionHeated Hose Bundle Part Numbers All heated hose bundles are CE approvedHeated Hose Bundle Part Numbers 3A0237LFluid Temperature Sensor FTS Heated Whip HoseFittings Heated Hose Bundle Part NumbersIndividual Hoses A Side Heated Hoses RedIndividual Hoses 3A0237LA Side Unheated Hoses Red Individual A Side Heated Whip HoseIndividual Hoses B Side Heated Hoses Blue All heated hoses are CE approvedIndividual Hoses 3A0237LB Side Unheated Hoses Blue Individual B Side Heated Whip HoseIndividual Hoses Applicator Kits ApplicatorHandle Options Required Solenoid KitMD2 Valve Applicator Kits MD2 HandleChemical Connection Kit see manualWarnings ELECTRIC SHOCK HAZARDSKIN INJECTION HAZARD THERMAL EXPANSION HAZARDTOXIC FLUID OR FUMES HAZARD FIRE AND EXPLOSION HAZARDEQUIPMENT MISUSE HAZARD PERSONAL PROTECTIVE EQUIPMENT Important Two-Component Material Information Isocyanate ConditionsMaterial Self-ignition Keep Components A and B SeparateA and B Components Changing MaterialsInstallation DescriptionConnect Whip Hose to Gun or Gun Manifold NOTE Use chemical connection kit 153 on all MD2 valves. See FIGConnect Heated Hoses Single Heat Zone with A and B Heated HoseDual Heat Zone with A and B Heated Hose Single Heat Zone with A or B Heated HoseFIG. 9 Insert Wire and Setscrew Incorrect Correct IncorrectFIG. 10 Torque Setscrew 9. See Connect FTS and Heated Whip Hose, page Cap plugs SetscrewsConnect FTS and Heated Whip Hose 1. For Single Zone HeatFor Dual Zone Heat Single Zone HeatConnect Solenoid Kit Connect SplitterNOTE Cut tubing 212 to desired length if neces- sary Check Hoses for Leaks Protective CoveringOperation Single Heat Zone ShownMaintenance Clean Orifice1. Follow Pressure Relief Procedure in MD2 valve manual Instructions for Replacing Individual A or B HoseMaintenance 3A0237LBundle Individual Whip Hoses NOTE Ensure no foam insulation is exposed on either material hoseDual Heat Zone Heated Whip Hose Bundle Single Heat Zone Heated Whip Hose BundleB Side A SideBundle Individual Heated Hoses the material hoseNOTE Do not twist 5 ft and 10 ft hose bundle lengths NOTE Ensure no foam insulation is exposed on either material hoseDual Heat Zone Heated Hose Bundle Shown Machine EndFIG. 22 Heated Hose Bundles MaintenanceParts Whip HosesDual Heat Zone Heated Whip Hose Single Heat Zone Heated Whip HoseAir Hose and Signal Cable Kits Heated Whip HosesCommon Parts Part No. DescriptionHeated Hose Bundles Dual Heat Zone Heated Hose Bundle ShownMachine End A SideDual Zone Heated Hose Bundles Common PartsPart No. Description Varied PartsSingle Zone Heated Hose Bundles Common PartsPart No. Description Varied PartsUsing Fluid Temperature Sensors For Single Heat Zones Using Fluid Temperature Sensors for Dual Heat Zones258758 Carbon Steel Fluid Temperature Sensor 258757 Stainless Steel Fluid Temperature Sensor15F144 Hose Wire Jumper PartConnect 258758 , page DescriptionMD2 Applicator Kits MD2 Applicator Kits153 24D162 Stainless Steel Connection Kit 24E505 Orifice Block KitAccessories Scuff GuardSolenoid Kits 24C757 Machine Mount Kit24D160 Remote Mount MD2 Kit 24D161 Remote Mount Fusion Kit Only 24D161Only 24D160 PartTechnical Data CategoryData Technical Data 3A0237LGraco Standard Warranty Graco InformationGraco Headquarters Minneapolis Graco reserves the right to make changes at any time without notice