MAINTENANCE
3-4
Service Manual
CONTROLS AND INDICATORS
• Green POWER ON LED
When illuminated, indicates that all control circuits are activated, the torch safety interlock is
satisfied and the system is ready for operation.
• Green LINE VOLTAGE LED
When illuminated green, indicates that the AC line voltage is within proper operating limits. If
disabled, (white) or if illuminated or blinking any other color, see
Basic Troubleshooting
in
Section 5 of Powermax900 Operator manual 803080.
• Yellow TEMP LED
When illuminated, indicates that the power supply temperature has exceeded operating limits.
• Green GAS PRESSURE LED
When illuminated, indicates that the gas pressure is within operating limits.
• GAS TEST Switch
When pushed in, allows the operator to view and adjust the pressure setting.
• AMPS Output Adjustment Knob
Adjusts output current between 20 and 55 amps.
• Pressure Regulator
Regulates input gas pressure to power supply.
• Pressure Gauge
Indicates gas pressure at power supply.
• ON (I)/OFF (0) Power Switch
Activates the power supply and its control circuits.
GAS
PRESSURE
Figure 3-3 Powermax900 Controls and Indicators
Pressure Gauge Pressure Regulator
AMPS
ON (I)/OFF (0) Power Switch
POWER
ON
LINE
VOLTAGE
TEMP
GAS
TEST
9-99
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