REPLACEMENT PROCEDURES 20 Manual 0-2683
11. Position wire connector L4 so that it runs along
side the Transformer, NOT across the top of the
Transformer.
12. Install cover/handle by reversing steps in subsec-
tion 4.2, keeping in mind the following:
a. The Air Compressor is secured in position by
one of the handle screws on the top side of the
power supply.
b. Make sure that no wires obstruct the cover
when it is installed.
4.6 Capacitor Replacement
WARNING
Disconnect primary power to the system before dis-
assembling the torch, leads, or power supply.
NOTE
Refer to subsection 4.1, General Information, for
information about wire harnesses.
1. Remove cover/handle from unit per subsection 4.2.
2. Make note of all wire connections and locations to
Capacitor.
3. Remove all wire connections to Capacitor.
4. The Capacitor is held in place by a tab located on
the Transformer frame. Using a screw driver or
similar tool, pry the tab back slightly to allow the
Capacitor to slide out of the bracket.
5. Install replacement Capacitor, by reversing steps
1-4, keeping in mind the following:
a. Make sure the Capacitor is securely positioned
behind tab. Tab may need to be bent.
b. Position wire connector L4 so that it runs along
side the Transformer, avoiding contact with
metal parts.
4.7 Control PC Board
Replacement
The DRAG-GUN Plasma Cutter has been manufactured
using one of two styles of PC Board Assemblies. The
Board will either have round mounting holes in the cor-
ners or key slotted mounting holes in the corners.
Follow procedures as they apply to your unit.
NOTES
It may be easier to remove the PC Board if the Ca-
pacitor is removed first.
All replacement PC Boards have key slotted holes.
WARNING
Disconnect primary power to the system before dis-
assembling the torch, leads, or power supply.
A. To Remove PC Board:
1. Remove cover/handle from unit per subsection 4.2.
2. Remove Capacitor (optional) per subsection 4.6.
3. Note all wiring connections and locations to the
PC Board.
4. Disconnect all wire connections to the PC Board,
removing any tie wraps where necessary.
5. Remove PC Board from unit by completing the fol-
lowing, as it applies to your unit:
PC Board with round mounting holes:
a. Remove the two (2) metal “C” clips located on
the top two standoffs that secure the PC Board
to the unit.
b. Gently pry PC Board off the standoffs then re-
move the second set of metal “C” clips (2).
NOTE
In some cases, the PCB may be mounted on stand-
offs and secured with RTV over the ends. Remove
the RTV and then remove the PCB from the unit.
PC Board with key slotted mounting holes:
a. Remove two (2) fastener plastic push ons from
key slotted holes in corners of PC Board.
b. Slide PC Board up or down to disengage, then
remove from unit.
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