Cutting Velocity Diagram - Elettro CF PLASMA 55 Manual De Instrucciones

Nozzle C should be replaced when its central hole is
damaged or enlarged with respect to the new part (see
picture 13). Use of worn electrode quickly wears out the
nozzle. Excessive use of electrode causes overheating and
reduces the life of diffuser B. Make sure that after replacing it,
nozzle D is tight enough.
ATTENTION! Nozzle holder D should be only screwed on
head when electrode A diffuser B and nozzle C are
assembled.
2) Replace torch body E (see picture 11 – 11a).
Remove screw V. Withdraw handle F from body E by swaying
it and making sure that button wires are not torn when
separating both parts. Withdraw the G and H safety contacts
wires. Withdraw the contact L. Unscrew fitting I after cutting
the insulating hose K. Fit the new torch body following all
above operations in reverse order. Fitting I is insulated by
shrink hose K stuck to the fitting when heated by a small
source (ex. a lighter). Before placing handle, make sure that
cables are far away from each other and that fittings are
tightly secured.
3) Substitution of adapter W. Only for item 489 (see
picture 11a)
Remove ring nut Z and cut the clamps locking cable R.
Loosen screw Y and extract cover X. Extract the control cable
pins N and O and the red cable pins for pilot arc P. Cut the
insulating sheath K2 and loosen the adapter body U from
connector Q. Fit the new adapter body carrying out all
previous operations in reverse order. Use sealing adhesive
for threads in order to lock the adapter body thread U on
connector Q.
Pins N and O of the control cable should be connected to
contacts (1) and (9) of adapter body U. Pins P of the red
cable for pilot arc should be connected to contacts (5) and (6)
8
of adapter body U. Sheath K2 acts as insulating material and
adheres to connector Q after warming it up.
4) Replacement of cable R. Only for item 489 (see picture
11a)
To replace cables follow instructions as per pos.2 and 3 and
connect S.
N.B.: Fitting S should be properly insulated.
5) Replacement of handle with button.
To replace handle with button, follow instructions given at
point 2.
3.7 MAINTENANCE AND CONTROL
It is recommended to keep nozzle free from slag. Avoid using
sharpened bodies thus avoiding damaging the nozzle hole.
Even if the unit is provided with an automatic device for water
discharge, working whenever air feed is closed, it is
recommended to check from time to time that no water
remains in trap I of reducer. It is required to clean from time to
time the unit inside and make it free from metal dust by
means of compressed air. Operations to be carried out inside
the unit must be effected after disconnecting feed cable.
3.7.1. PRECAUTIONS TO TAKE AFTER A REPAIR
After making repairs, take care to re-order the cables so that
there is sure to be insulation between the primary and the
secondary sides of the machine. Make sure that the wires
cannot come into contact with moving parts or parts that heat
during operation. Replace all clamps in their original positions
on the machine, to prevent a connection between the primary
and secondary circuits if a conductor accidentally breaks or
disconnects.

CUTTING VELOCITY DIAGRAM