Cebora CP-162C Manuel D'instructions page 8

INSTRUCTION MANUAL FOR CEBORA CP-162C PLASMA TORCHES
Before using this welding torch, read carefully this
manual.
This welding torch is made in accordance with IEC
60974-7 standard safety requirements. According
to the above standard
SPA declares that this welding torch must be used
solely with CEBORA power sources. Spare parts
and consumables are integral part to this welding
torch, 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
responsibility 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
temperature 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
consulted whenever doubts arise and be kept for the
entire welding torch life-span; it will also be used for
ordering replacement parts.
2 TECHNICAL SPECIFICATIONS
Maximum cutting current I2 = 160 A
Duty cycle X = 100% with I2= 125 A
Duty Cicle X = 60% with I2= 160 A
Working pressure with a 6 m = 5.5 bar (0.55 MPa) cable.
Working pressure with a 15 m = 6.0 bar (0.60 MPa) cable.
Total air capacity = 250 litres/minute.
3 ACCESSORIES AND CONSUMABLES
See ig.1
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
8
requirements CEBORA
in accordance with IEC 60974-7 Standard which
requires that when a live nozzle is vertically located
on a lat surface it should not be touched with the
conventional test inger whose characteristics are
speciied in the standard.
5 WELDING TORCH MAINTENANCE
Always shut off the unit before any maintenance
operation
5.1 REPLACING THE CONSUMABLES
C
B
E
D
F
Fig. 2
electrode must be screwed in its seat and locked
without tightening all the way down.
Nozzle E is to be replaced when its central hole is
damaged or enlarged as compared to a new one.
Delayed replacements of electrode and nozzle cause
overheating , which can reduce swirl ring B life. After
these replacements, check that the nozzle holder D
is accurately tightened.
WARNING: screw the nozzle holder
welding torch body only when electrode C, swirl ring
B and nozzle E are assembled. If these elements
are not assembled the equipment operation is
jeopardized as well as the operator's safety.
5.2 REPLACEMENT OF THE WELDING TORCH
The units with S mark, designed to operate in highly
hazardous ambient are equipped with a protection
device which requires the use of a tool to assemble
and disassemble the welding torch.
Unscrew the screws that fasten the protection
device to the unit, unscrew the ring nut of the central
adapter, remove the protection device.
Replace the welding torch and follow the previous
instructions in reverse direction.
Note
• Do not dent the contact tip, do not bend the
welding torch itting pins.
Making reference to Fig.
2 , parts subject to wear
are as follows: electrode
C, swirl ring B, nozzle E
and nozzle protection F.
These should be
replaced after
unscrewing the nozzle
holder D. Electrode C
must be replaced when
it shows an approx 1.5
mm deep crater at the
centre.
WARNING:
When unscrewing the
electrode do not force it
but apply a progressive
strength until the thread
is disengaged. The new
D onto the