Safety Devices - Cebora CP-101 Manual De Instrucciones

INSTRUCTION MANUAL FOR CEBORA CP-101 PLASMA TORCHES
Before using this welding torch, read carefully this man-
ual.
This welding torch is made in accordance with IEC
60974-7 standard safety requirements. According to
the above standard requirements CEBORA SPA de-
clares that this welding torch must be used solely
with CEBORA power sources. Spare parts and con-
sumables are integral part to this welding torch,
therefore CEBORA considers the use of parts that
are not CEBORA genuine parts as a tampering ac-
tion and consequently, in accordance with the spirit
of this same standard CEBORA assumes no respon-
sibility including those provided for in the guarantee
contract.
Any use which is not described has to be considered as
NOT ALLOWED.
Starting up, operation and maintenance must be carried
out by skilled personnel.
Accident prevention regulations in force should be re-
spected.
1 GENERAL
This welding torch, designed for plasma arc cutting of
electro-conducting materials (metals and alloys) uses air
as plasma gas and cooling agent.
The "PLASMA ARC" cutting is the result of the high tem-
perature generated by a concentrated electric arc and
therefore highly hazardous situations may occur. It is es-
sential to pay especially close attention to the chapter
on SAFETY PRECAUTIONS in the manual of the power
source to which the welding torch is connected.
These welding torches should not be used under rain or
snow or equivalent condition.
This manual must be stored carefully in a place familiar
to the operator using the welding torch. It must be con-
sulted whenever doubts arise and be kept for the entire
welding torch life-span; it will also be used for ordering
replacement parts.

2 SAFETY DEVICES

Maximum cutting current I2 = 100A D.C.
Duty cycle X = 60% with I2 = 100A
Duty cycle X = 100% with I2 = 50A
Working voltage U2 = 120V (nozzle-workpiece distance
3 mm)
Running pressure with 6m cable = 5 bar (0.5 MPa)
Running pressure with 12m cable = 5,5 bar (0.55 MPa)
Total air flow rate = 130 liters/minute
3 ACCESSORIES AND CONSUMABLES (FIG. 1)
4 SAFETY
This welding torch is equipped with an electric safety de-
vise located on the welding torch body to avoid any dan-
gerous voltage when the nozzle, the electrode, the swirl
ring or the nozzle holder are replaced. It is in accordance
with IEC 60974-7 Standard which requires that when a
live nozzle is vertically located on a flat surface it should
6
not be touched with the conventional test finger whose
characteristics are specified in the standard.
5 TORCH MAINTENANCE
Always cut off the power supply to the machine before
any operation, which must always be carried out by quali-
fied personnel.
5.1 REPLACING CONSUMER PARTS
The parts subject to wear include the electrode A, the
diffuser B and the nozzle C and must be replaced after
unscrewing the nozzle holder D.
The electrode A must be replaced when a 1.5-mm-deep
crater appears in the center.
CAUTION! Do not use any sudden force in unscrewing
the electrode: apply a progressive force until the thread
is released.
The new electrode must be screwed into the slot and fas-
tened in place without tightening it all the way.
The nozzle C should be replaced when the center hole is
damaged or enlarged compared to a new part.
Delaying replacement of the electrode or nozzle will
cause the parts to overheat and shorten the life-span of
the diffuser B.
Make sure that the nozzle holder D is sufficiently tight-
ened after replacement.
CAUTION! Screw the nozzle holder D onto the torch body
with only the electrode A, the diffuser B and the nozzle
C mounted. If these parts are not present, the machine
will not function properly and operator safety will be en-
dangered.
5.2 REPLACING THE TORCH
5.2.1 Torch with central adapter.
Machines in the S line, designed to operate in high-risk
environments, are equipped with a protective device that
requires a tool to be used to assemble and disassemble
the torch.
Unscrew the screws holding the protection on the ma-
chine, unscrew the ring-nut of the center fitting, and re-
move the protective guard.
Replace the torch and follow the above steps in reverse
order.
Note - Do not dent the current pin and do not bend the
pegs of the torch fitting.
5.3 REPLACING THE TORCH BODY E
Unscrew the screw V. Remove the grip F from the body
E by moving the grip back and forth, being very careful
not to tear the trigger wires when the two parts separate.
Disconnect the wires from the safety contacts G and H.
Disconnect the connection L. Unscrew the fitting I after
cutting the insulating tube K. Assemble the new torch
body by following the above steps in reverse order.
Note - Insulate the fitting I by having the heat-shrink insu-
lating tube K adhere to it; this is done by heating it with a
small heat source (i.e., a cigarette lighter).
Before mounting the grip, make sure that the cables are