REPLACEMENT PROCEDURES
5-2
Manual 0-2972
5.04 Major External Parts
Replacement
Refer to Section 6.03 for Major External Replacement Parts
and overall detailed drawing.
WARNING
Disconnect primary power from the source before
opening or disassembling the power supply.
A. Cover Removal and Replacement
1.
Remove the upper screws securing the cover to the
unit then loosen the lower screws securing the cover
to the base.
Art # A-03939
Lower
screws
Ground wire
Lower
screws
Upper
screws
2.
Carefully lift the cover up and away from the unit
to gain access to the ground wire connection on the
inside of the cover (left side near front).
3.
Remove the nut and washer from the ground stud
on the inside of the cover.
4.
Install the replacement cover by reversing the above
steps.
B. Tube Handle Replacement
1.
Remove the cover per Subsection 5.04-A.
2.
Remove the four bolts and star washers securing
the tube handles to the base of the unit.
3.
Move the input power cable, torch leads and work
cable inside the handle, then lift the base of the
unit away from the Tube Handle.
4.
With a rubber mallet, separate the two handle ends
as shown below.
5.
Install the replacement Tube Handle by reversing
the above steps.
Art # A-02847
5.05 Front Panel Parts Replacement
Refer to Section 6.04 for Front Panel Replacement Parts
and overall detailed drawing.
WARNING
Disconnect primary power from the source before
opening or disassembling the power supply.
A. CURRENT (A) Knob Replacement
1.
Turn the adjustment fully clockwise and note the
location of the pointer on the knob.
2.
Loosen the screw securing the Current Knob to the
potentiometer shaft and remove the Current Knob.
3.
Place the replacement Current Knob on the potenti-
ometer shaft with the pointer in the same position
as noted in step 1.
4.
Tighten the screw to secure the knob to the potenti-
ometer shaft.
