Graco 312888D User Manual

312888DOperation - Parts AR Pour GunFor use with non-flammable polyurethane foams. Not for use in explosive atmospheres.Part No. 2558282000 psi (13.8

Initial Set Up 10 312888DInitial Set Up1. Remove coupling block from gun.2. Check valving rod clearance in closed position. Rod should extend approxim

Daily Start-Up312888D 11Daily Start-Up1. Ensure gun is mounted onto gun block.2. Connect air supply to gun; see Air Hose Connec-tion, page 8.3. Connec

Pressure Relief Procedure 12 312888DPressure Relief Procedure1. Close both manual valves.2. Set safety stop to OPEN.3. Trigger gun onto cardboard or i

Maintenance312888D 13MaintenanceGun Service KitsUse either the 1-Quart Gun Service Kit (296980) or 3-Gallon Gun Service Kit (296981) to perform daily

Maintenance 14 312888DDaily Cleaning Procedure,without Gun Service KitIf the Gun Service Kit is not available, the iso side com-ponents must be cleane

Troubleshooting312888D 15TroubleshootingProblem Cause SolutionInterruption of flow of one material Running out of material Supply more material to pro

Repair 16 312888DRepair Tools Required•flush can•impinger cleanout brush•5/16 in. nut driver•utility knife•pin vise without cleanout spade•gun block

Repair312888D 173. Slide screen screw assembly out of gun block. Allow excess Isocyanate material to drain.4. Flush assembly and place it in gun clean

Repair 18 312888DReassembly1. If valving rod resilient sleeve assembly was removed or is being replaced, use the following steps:a. Thread coupler ont

Repair312888D 197. If material buildup prevents easy removal, use three-pronged end of check valve removal tool to grasp check valve and turn free.8.

2 312888DContentsWarnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Isocyanate Hazard . . . . . . . . . . . . . . . .

Repair 20 312888D2. Thread throat assembly by hand into gun block. Use throat wrench to tighten.3. Assemble front impinger and pattern control tip. In

Repair312888D 217. Soak gun block in gun cleaner.8. Reassemble resin (rear) seal screw and resin seal o-rings into gun block.9. Reinstall gun block us

Repair 22 312888D

Parts312888D 23PartsAR Pour Gun 255828Impinger Options Table 1: Impinger Options - C SizeTable 2: Impinger Options - D SizeRef Part Description QtyBA

Parts 24 312888DAuto AR-C Gun 2558271†6123†2†4†1714536◆33◆37719293241311581322234093435182425212739192628111020444338

Parts312888D 25 †Parts included in Kit 296624, available separately.◆Parts included in Kit 298357, available separately.Ref Part Description Qty1† 296

Parts 26 312888DGun Handle Assembly 256213 2062302132322122112102092082052072052022052162102152142342172332312192282352032012012292242202042212032032

Parts312888D 27Air Cylinder Assembly 299960 Ref Part Description Qty201 298116 SCREW, 4-40 x 3/4 shcs 3202 108195 PACKING, o-ring 1203 C19950 SCREW, c

Parts 28 312888DCoupling Block Assembly 285771 AR Gun Tool Kit 253728 501504502503505506Ref Part Description Qty501 295619 SCREW, mounting 1502 29569

Parts312888D 29AR-D Conversion Kit 24A023 See Repair section on page 16 for conversion kit parts installation.Ref Part Description Qty701 299961 CYLI

Warnings312888D 3WarningsThe following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-tion point s

Electrical Diagram 30 312888DElectrical Diagram #/),2%452.#!3%$)30%.3%#/--!.$37)4#(2%452.$)30%.3%!#4)6%$)30%.3%2%15%34!#4)6%!2'5.(!.$,%&a

Technical Data312888D 31Technical Data † Flow rate depends on pump sizes, hose diameter, hose length, and impingersPerformance ChartsCategory DataMax

All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves th

Warnings 4 312888DFIRE AND EXPLOSION HAZARDFlammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire

Isocyanate Hazard312888D 5Isocyanate Hazard Material Self-ignition Moisture Sensitivity of IsocyanatesIsocyanates (ISO) are catalysts used in two co

Components 6 312888DComponents Key:A Manual ValvesB Gun BlockC Coupling BlockD TriggerE Valving RodF Piston RodG Safety StopH Pattern Control TipJ Fr

Operation Basics312888D 7Operation BasicsGroundingCheck your local electrical code and your proportioner manual for detailed grounding instructions.Gr

Operation Basics 8 312888DAir Hose ConnectionConnect Air HosesPull back sleeve of female fitting, insert male fitting and slide sleeve forward to secu

Operation Basics312888D 97. Cover exposed openings with grease.Install Coupling BlockReplace nicked, damaged, or worn coupling block gas-kets.1. With