Hitachi 231580 manual Pressure Relief Procedure, Startup Procedure

Page 9

Startup

WARNING

INJECTION HAZARD

The system pressure must be manually relieved to prevent the system from starting or spraying accidentally. Fluid

under high pressure can be injected through the skin and cause serious injury. To reduce the risk of an injury from injection, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you:

Dare instructed to relieve the pressure,

Dstop spraying,

Dcheck or service any of the system equipment,

Dor install or clean the spray tip.

Pressure Relief Procedure

1.Engage the gun safety latch.

2.Turn the ON/OFF switch to OFF.

3.Unplug the power supply cord.

4.Disengage the gun safety latch. Hold a metal part of the gun firmly to a grounded metal pail. Trigger the gun to relieve pressure.

5.Engage the gun safety latch.

6.Open the pressure drain valve. Leave the pressure drain valve open until you are ready to spray again.

If you suspect that the spray tip or hose is completely clogged, or that pressure has not been fully relieved after following the steps above, VERY SLOWLY loos- en the tip guard retaining nut or hose end coupling to relieve pressure gradually, then loosen completely. Now clear the tip or hose obstruction.

Startup Procedure

Use this procedure each time you start the sprayer to help ensure the sprayer is ready to operate and that you start it safely.

NOTE: If this is a first-time startup, flush the sprayer. See page 12.

NOTE: Refer to Fig. 2 and the other figures referenced in the text as you start the sprayer.

1.Open the pressure drain valve (42). See Fig. 8.

2.Don't install the spray tip until the pump is primed!

3.Put the suction tube (32) into the paint. If you are pumping from a pail, push the drain hose (33) down below the top of the pail to avoid splashing paint when the drain is opened.

42 1

1Open or drain, position

Fig. 8

04648

 

4.Turn the pressure knob (64) to the minimum setting.

5.Disengage the gun trigger safety. See Fig. 4, page 7.

CAUTION

Do not run the sprayer dry for more than 30 seconds to avoid damaging the pump packings.

6.To prime the pump, turn the sprayer switch (52) on. Slowly increase the pressure until the sprayer starts. When fluid comes from the pressure drain valve, close the valve.

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Contents Performance 308715Symbols Table of ContentsInjection Hazard Fire Skin Injection Explosion Hazard Equipment Misuse HazardModel 231580 shown Component Function and IdentificationFire and Explosion Hazard SetupHow to use the pressure control How to use the gun trigger safetyHow to use the pressure drain valve OperationHow to use the RAC IV tip guard How to remove a tip clogProcedure on Pressure Relief Procedure Startup ProcedureStartup Engage the gun safety latch Shutdown and Care Shutdown and CareHow to Flush When to FlushFollow the Pressure Relief Procedure on FlushingBasic Problem Solving TroubleshootingIntermediate Problem Solving No output motor runs but pump does not stroke Spray Pattern Variations Setup Motor TestArmature Short Circuit Test Tool List General Repair InformationMoving Parts Hazard HOT Surface HazardMotor Brushes Test the brushes Displacement Pump Repair Repairing the pumpRemoving the pump See Fig Motor Power Supply Cord On/Off SwitchMotor Start Board Drive Housing, Connecting Rod, Crankshaft REF a Pressure Control Suction Hose Pressure TransducerReplacement Drain ValveRepair Dimensions Technical DataGraco Phone Number French Spanish German Greek Korean EnglishModel 231580, Series a Model 232654, Series a Sprayer Parts DrawingSprayer Parts List Model 231580, Series A, Model 232654, Series aDescription Qty 644a 12b Motor Brush and Spring Replacement Kit Graco Warranty Additional Warranty CoverageLimitation of Liability
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