Texture Sprayers Electrical & Mechinical Troubleshooting Manual

Engine PowerNotUsed1030FC Electrical and Air Ladder DiagramSpraying Mode:In order to spray the control board must senses 30psi or higher and the rotary switch must be in oneof the 3 settings Low/Med./High. When the spray gun is triggered the flow switch will close,sending a signal to the control board. The control board will then send voltage out to the clutchfield to start the pump. At the same time voltage will be sent to the Mac air valve coil. The coil willclose the air valve changing the direction of the air flow to the dump valve. Air will now travelthrough the blue hose to the back of the dump valve forcing it closed .When this occurs thematerial will be forced out through the material hose.Clutch CoilThermistorWht. Com.Blk. OffBlu. Prime15B671ROTORYSWITCH234234Control BoardRed HighYel. Med.Grn. LowEngine12-18VACPinionAssembly245399AirRegulator0-125psiAirCompressorMac Air Valve15B683BlueExhaustedAirBlackControl Board mustsee 30psi to operate!Flow Sensor Kit234232AirFlow SwitchGun ValveGun AirNozzleThe Flow Switch will remainopen until air flow is present.The Gun being triggered ora Air Leak will cause thepiston to move towards themagnetic reed switch andclose the circuit. Once theControl Board senses theclosed circuit it will engagethe clutch and close the dumpvalve.When Coil Voltage is present, the coil will close theair valve changing the direction of the air flow to thedump valve. Air will now travel through the bluehose to the back of the dump valve forcing it closedDump Valve287127AirTransducer:Sends a signal to the control board for materialpressure and protects the sprayer from overpressurizing. Shuts pump down at 1000psi!23