J.E. Adams 8670 Seies, Руководство пользователя

Страница: 14 / 19

14
Caution! -lethal voltage is present in all compressed air vending machines. Repair should only be attempted by trained
technicians. Note -Tests should be performed in order for proper diagnosis.
1.00 Check for loose connections:
Loose or broken wires can cause misleading symptoms. Check all connections before
proceeding.
2.00 Check AC power:
The pressure regulator circuit board and solenoids operate from a 24VAC power transformer.
The LCD display should have white LED back-lighting and the unit should indicate a 32 psi set
point and 0 psi during idle mode. If the display fails this check, the board is most likely not
receiving 24VAC power. If power is present at the 0.250” tab terminals, replace the digital
pressure board and/or display.
3.00 Adjust set point :
Adjust the set point with the up and down buttons. The buzzer should beep with every
adjustment.
3.01 Potential faults if set point does not increment or decrement:
Loose or broken push button wires
Push button
Digital pressure board
3.02 Potential faults if the buzzer does not beep:
Loose or broken buzzer wiring
Buzzer
Digital pressure board
4.00 Read tire pressure :
With the compressor off, attach the air chuck to a tire. The display should indicate the tire
pressure. The buzzer should beep when stable pressure is detected. Note the pressure and
remove the chuck. Measure the tire with an accurate hand-held tire gauge. Compare the
two readings.
Note -stick gauges are notoriously inaccurate, use a quality instrument for this
procedure. Make sure a good seal is achieved for each measurement. Any air escaping
during this procedure will greatly affect accuracy. The test tire should be at 32 to 50 psi for best results
.
REV 3-23-22