Firepower FP-78 Operating Manual page 24

4. TEMP Indicator
Normally OFF. Yellow LED indicator will come ON
when the internal temperature senors detect tempera-
tures above normal limits. The unit should be al-
lowed to cool before continuing operation.
C. Torch Panel Bulkhead
The torch panel bulkhead area is located behind the Front
Panel and requires removal of the Power Supply Cover
for access.
1. Gas/Power Lead Connection
Connects the torch gas/negative lead to the unit.
2
Figure 4-3 Torch Panel Bulkhead Area
2. Control and Pilot Cable Hole
Hole used to allow the Control and Pilot Cables to
be fed into the power supply for internal connections
to the Pilot/Output PC Board.
D. Rear Panel
1. Gas Input Fitting
Input connection for nitrogen (N2) or air input.
This unit not to be used with oxygen (O
OPERATION
1
A-01689
WARNING
).
2
4
3
Figure 4-4 Rear Panel
2. Primary Input Power Cable and Strain Relief
Input power cable is supplied on units.
Primary input power cable and strain relief for the
six foot (1.8 m) primary power cable capable of han-
dling the input voltage designed for this unit.
3. Gas Pressure Adjustment
Adjustment knob on internal pressure regulator to
adjust the input gas pressure to the Power Supply.
Pull knob out and turn clockwise to increase pres-
sure to desired level.
4. Pressure Gauge
Displays input gas pressure to the torch.
18
1
2
A-01690
NOTE
Manual 0-2700