AIRLESSCO 1110E Service & Operation Manual - Figure 30
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REPLACEMENT OF ELECTRICAL COMPONENTS
WARNING: ALWAYS UNPLUG THE ELECTRICAL CORD BEFORE SERVICING MACHINE!
NOTE: ANYTIME THE PRESSURE CONTROL ASSEMBLY, SENSOR, OR BOTH ARE REPLACED,
PERFORM THE CALIBRATIONS.
PRESSURE CONTROL ASSEMBLY
(ELECTRICAL CONTROL BOARD)
SENSOR
POTENTIOMETER
ON-OFF TOGGLE SWITCH
CIRCUIT BREAKER
1. Unplug machine's power cord.
2. Remove eight screws and lower the pressure control
assembly.
3. Disconnect all leads from pressure control assembly.
4. Reassemble in reverse order.
1. Remove the screws and lower the pressure control
assembly.
2. Disconnect sensor lead from the board.
3. Unscrew sensor from pressure control assembly using a
7/8" wrench.
4. Reassemble in reverse order. Use telfon tape on the
sensor threads prior to reinstalling it into the pressure
control assembly.
1. Lower pressure control assembly as described above.
2. Disconnect potentiometer lead from pressure control
assembly.
3. Use a 1/16" allen wrench, loosen set screw in the
potentiometer knob and remove knob and spacer.
4. Using a 1/2" wrench or deep socket, remove the nut from
the potentiometer shaft assembly.
5. Pull entire potentiometer assembly out of the frame.
6. Replace in reverse order.
1. Lower the pressure control assembly as described
above.
2. Disconnect the two wires on the toggle switch.
3. Use a 9/16" wrench to loosen the nut on the toggle
switch shaft.
4. Reassemble in reverse order.
1. Lower pressure control assembly as described above.
2. Disconnect the two wires on breaker.
3. Unscrew rubber boot from breaker shaft.
4. Use 1/2" wrench to remove the bushing from the
breaker shaft.
5. Remove breaker from frame.
LIQUID CRYSTAL DISPLAY (LCD)
FIGURE 30
1. Ensure that the power switch is OFF and that the
machine is unplugged.
2. Detach the pressure control assembly from the frame by
unscrewing the eight screws.
3. Disconnect the LCD lead from the the pressure control
assembly.
4. Separate the LCD assembly from the frame by undoing
the four screws.
5. Disassemble Items 1-6.
6. Remove and replace LCD Display.
7. Reassemble in reverse order.
NOTE: DO NOT OVER TIGHTEN THE SCREW AND
NUTS (ITEM 1 & 6). THIS CAN WARP THE LCD AND
DAMAGE IT.
8. Perform "LCD Calibration Procedure". See page 26.
PARTS LIST FIGURE 30
Item No.
Part No.
Description
1
117-128
Nut (4)
2
120-048
Plastic Washer (4)
3
331-377
331-397
Display Board Assy (PSI)
Display Board Assy (BAR)
4
117-281
Spacer (4)
5
331-360
Window
6
100-362
Screw (4)
-
331-304-99 LCD Kit (PSI)
-
331-305-99 LCD Kit (BAR)