Hitachi 308640 manual Flush the Gun Daily

Page 12

Operation

Flush the Gun Daily

WARNING

INJECTION HAZARD

To reduce the risk of a fluid injection injury, follow the Pressure Relief Proce- dure on page 7 before cleaning,

removing, or installing a spray tip and whenever you are instructed to relieve pressure.

WARNING

To reduce the risk of serious injury, including splashing fluid in the eyes or on the skin, or static electric discharge when flushing:

DBe sure the entire system, including flushing pails, are properly grounded.

DRemove the tip guard and spray tip.

DMaintain metal-to-metal contact between the gun and a grounded metal waste container. See Fig. 7, page 11.

DUse the lowest possible pressure.

NOTE:

DFlush the pump and gun before the fluid can dry in it.

DIf it is available, the flushing procedure provided in the pump or sprayer manual should be used instead of this procedure.

1.Relieve the pressure as instructed on page 7.

2.Disconnect the atomizing air hose and the fluid supply line.

3.Remove the tip guard or AA RAC assembly (11), air cap or RAC housing (13), and spray tip (14). Refer to the parts drawing for your gun model (page 18 or 20).

4.Clean the parts.

5.Connect a compatible solvent supply to the gun.

6.Start the pump and operate it at its lowest pres- sure.

7.Hold a metal part of the gun firmly against a grounded metal waste container, and trigger the gun until all the paint is removed from the gun passages.

8.Relieve the pressure as instructed on page 7.

9.Disconnect the solvent supply.

NOTE: If the gun is being used with plural component materials, remove the needle cartridge and thoroughly clean it with a soft brush to ensure that the material does not cure in the spring area and make the gun inoperable. See page 16 to remove the needle car- tridge.

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Contents 308640 Part No , Series aPart No , Series B This manual contains important warnings and informationTable of Contents Equipment Misuse Hazard Installation Typical InstallationVentilate the Spray Booth T QConnect the Air Line Connect the Fluid LineGround the System Fluid supply container Ground it according to local codeObject being sprayed Ground it according to local code Safety Pressure Relief ProcedureOperation Install a Spray Tip How the Air-Assisted Spray Gun OperatesSelect a Spray Tip and Air Cap Your applicationAdjust the Spray Pattern Recoil HazardApply the Fluid Clean the Spray Gun and System Daily Check the Diffuser-seat Operation WeeklyFlush the Gun Daily 308640 Troubleshooting General TroubleshootingProblem SolutionSpray Pattern Troubleshooting Service Air Valve ServiceFluid Needle Cartridge Service AIR Service Notes 10b 10aParts Part No , 238852, 238883,Repair Kits Description QtyDescription Qty 35Y 172479 TAG, instruction not shown 14a 10b 111517 RING, backup Ptfe r 238701 238755 NEEDLE, fluid, hi-flow Included with192096 239172Spray Tip Selection Charts Standard Spray Tips, for use with Air CapFluid output at 600 psi 4.1 MPa, 41 bar On the next Dimensions Measurements, inches mm Gun238402 238851 238852 238883 239001 241070 Technical Data Sound DataAccessories Graco Standard Warranty Graco Phone NumberManual Change Summary Manual changed per ECO