Lincoln Electric IM588 PCT80, PCT80M & PCT80R Plasma Torches - Manual (Page 13)

C-2 MAINTENANCE C-2
REPLACEMENT INSTRUCTIONS
FOR PCT80M or PCT80R CABLE
AND TORCH HEAD ASSEMBLY
ELECTRIC SHOCK can kill.
• Turn the input power off to the Pro-
Cut using the disconnect switch at
the fuse box before attempting to
replace either the torch head or the
cable assembly.
• Only qualified personnel should install, service
or use this equipment.
• Read instructions thoroughly before beginning.
Tools Required:
Tools Required:
(1) 1/2" open end wrench
(1) 5/64" allen wrench
(2) 7/16" open end wrenches
NOTE: The pictures illustrate the machine torch. The
procedure for replacing components on the robotic
torch is similar.
1. Be sure power is OFF to the machine by using the
disconnect switch at the fuse box. Do not proceed
until power to the machine is disconnected.
2. Unscrew the strain relief and strain relief nut. Slide
strain relief and nut about one foot along the cable.
3. Remove the flat head socket screw using the 5/64"
allen wrench. Grasp shield cup with one hand and
barrel with other. Pull shield cup gently straight for-
ward, until air line and solenoid connections are
exposed.
4. Using the 7/16" wrench, loosen the nut at the back
of the torch head to remove the electrode lead and
then unplug the electrical connector.
5. Using the 7/16" and 1/2" open end wrenches, dis-
connect the air connection and remove the entire
torch head assembly.
6. Replace Torch Head or Cable Assembly as follows:
a. For replacing the torch head, obtain a new torch
head and discard the old one if damaged.
b. For replacing the cable assembly, slide the bar-
rel, strain relief nut and strain relief off of the old
cable. Obtain a new cable and discard the old
cable. Slide on the following parts in this order:
Strain relief, strain relief nut, and then barrel.
7. Assemble the air connections using the 7/16" and
1/2" open wrenches. Then connect the electrical
connectors together.
8. Connect the electrode lead to the screw on the back
of the torch head using the 7/16" nut. Tighten with
the wrench. Tape the electrical connector to the air
line. Tape electrode lead to the air line at the air line
connection.
PLASMA TORCH
WARNING
Strain Relief
Flat Head
Socket Screw
Strain Relief Nut
Air line and
Solenoid connections
Electrode Lead
PULL
Barrel
Electrode
Lead Connection
Electrical Connector
Air Connection
Strain Relief
Strain Relief Nut Barrel
Slide parts off in this direction
Slide parts on in this direction
Air Connection
Air line and
Solenoid connections
Electrical Connector
Barrel
Electrode Lead
O-Rings
Tape