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In order to spray the control board must senses 30psi or higher and the rotary switch must be in one
of the 3 settings
sending a signal to the control board. The control board will then send voltage out to the clutch
field to start the pump. At the same time voltage will be sent t o the Mac air valve coil. The coil will
close the air valve changing the direction of the air flow to the dump valve. Air will now travel
through the blue hose to the back of the dump valve forcing it c losed .When this occurs the
material will be forced out through the material hose.
Engine Power
Clutch Coil
Not
Used
Thermistor
Air
Compressor
Air
Regulator
0-125psi
Mac Air Valve
15B683
Blue
Dump Valve
Air
287127
1030FC Electrical and Air Ladder Diagram
Spraying Mode:
Low/Med./High.
When the spray gun is triggered the flow switch will close,
Wht. Com.
Blk. Off
Blu. Prime
Control Board must
see
Flow Sensor Kit
Flow Switch
Exhausted
Air
When
air valve changing the direction of the air flow to the
dump valve. Air will now travel through the blue
hose to the back of the dump valve forcing it closed
15B671
ROTORY
Red High
SWITCH
Yel. Med.
Grn. Low
234234
Control Board
30psi
to operate!
234232
Air
Gun Valve
Gun Air
Nozzle
Coil Voltage
is present, the coil will close the
Transducer:
Sends a signal to the control board for material
pressure and protects the sprayer from over
pressurizing. Shuts pump down at 1000psi!
Engine
12-18VAC
The Flow Switch will remain
open until air flow is present.
The Gun being triggered or
a Air Leak will cause the
piston to move towards the
magnetic reed switch and
close the circuit. Once the
Control Board senses the
closed circuit it will engage
the clutch and close the dump
valve.
Pinion
Assembly
245399
23
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