Safety Devices - Cebora CP41C Manual De Instrucciones

INSTRUCTION MANUAL FOR CEBORA CP-41C 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
declares that this welding torch must be used solely
with CEBORA power sources. Spare parts and con-
sumables are integral part to this
therefore CEBORA considers the use of parts that are
not CEBORA genuine parts as a tampering action
and consequently, in accordance with the spirit of
this same standard CEBORA assumes no responsi-
bility 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
respected.
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
essential 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 consult-
ed 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 = 40A D.C.
Duty cycle X = 35% with I2 = 40A.
Duty cycle X = 60% with I2 = 20A.
Working voltage U2 = 90V (nozzle in contact with work-
piece).
Working pressure with cable: 4m = 3,5 bar (0,35 MPa)
Total air throughput = 60 liters/minute
4 SAFETY
This welding torch is equipped with an electric safety
devise located on the welding torch body to avoid any
dangerous voltage when the nozzle, the electrode, the
swirl ring or the nozzle holder are replaced. It is in accor-
dance with IEC 60974-7 Standard which requires that
when a live nozzle is vertically located on a flat surface
it should not be touched with the conventional test finger
whose characteristics are specified in the standard.
4
requirements CEBORA SPA
welding torch,
4 TORCH MAINTENANCE
Always cut off the power supply to the machine before
any operation, which must always be carried out by qual-
ified personnel.
4.1 REPLACING CONSUMER PARTS (FIG. 1-2)
The parts subject to wear are the electrode G, the diffu-
ser F and the nozzle E; these must be replaced after first
unscrewing the gas nozzle holder D.
The electrode G must be replaced when it has a crater in
the center approximately 1 mm deep.
The nozzle E must be replaced when the central hole is
damaged or wider than that of a new part.
Delays in replacing the electrode or nozzle will cause the
parts to overheat, and jeopardize the life-span of the dif-
fuser F.
The electrode must
unscrewed or screwed onto
the torch body by means of
the specific wrench. The dif-
fuser, the electrode and the
nozzle must be fitted in the
order indicated in figure.
Make sure that the gas
nozzle holder D is firmly
tightened after replacement.
WARNING! Screw the gas
nozzle holder D onto the
torch body only with the
electrode G, diffuser F and
nozzle E mounted. If any of
these parts are missing,
this will interfere with
smooth operation of the
machine and, especially,
jeopardize operator
safety.
4.2 REPLACING THE TORCH
Remove the lateral fixed cover plate from the machine
Unscrew the cable clamp ring nut , remove the two
faston contacts , disconnect the pilot arc red wire and
then unscrew the power adaptor.
Replace the torch and follow the above steps in reverse
order.
4.3 REPLACING THE TORCH BODY E -(FIG. 3)
Unscrew the screw A. 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
be
F
G
E
D
Fig. 1