System Maintenance; Maintenance Operations - Cebora PLASMA PROF 166 HQC Manual De Instrucciones

PROBLEM
Bevel cut
Not enough penetration
Presence of
"low-speed dross" *
Presence of
"high-speed dross" **
Rounded cutting edge
* The low speed dross is thick dross, of globular shape, easy to remove. The kerf is fairly large.
** The high speed dross is thin dross, hard to remove. In case of very high speed, the cut wall is rather rough.

4.5 SYSTEM MAINTENANCE

A correct system maintenance ensures top performance
and extends the life of all the components, including con-
sumables parts. We therefore suggest performing the fol-
lowing maintenance jobs.

Maintenance operations

Period
Make sure the gas supply is at the right
Daily
pressure
Make sure the power source, cooling
unit and gas console fans are working
correctly
Weekly Check coolant level
Clean the torch threads and make sure
there are no signs of corrosion or elec-
tric discharges
Check the gas, water and electric con-
nections for any cracks, abrasions or
leaks
Monthly
Run the TEST program through the gas
console.
CAUSE
Electrode or nozzle worn
Stand off too high
Cutting speed too high
Cutting speed too high
Nozzle diameter too large with re-
spect to set current
Work piece thickness excessive with
respect to set current
Earth lead not in good electric con-
tact with cutting surface
Cutting speed too low
Cutting current too high
Stand off too low
Cutting speed too high
Cutting speed too low
Stand off too high
Cutting speed too high
Stand off too high
Tab. 8
Every six
months
If, during an inspection, a highly worn component part
is found or one that is not working properly, contact the
CEBORA assistance service.
To service the inner parts of the different system com-
ponents, request the assistance of qualified personnel.
In particular, the following operations are best performed
periodically.
For all the component parts:
• Clean the inside with compressed air (clean, dry and
• Make sure the power connections are tight and are not
Replace both
Lower stand off
Regulate speed
Regulate speed
Check Cutting Tables
Increase the cutting current
Check the tightness of the earth
terminal to CNC
Regulate speed
Reduce cutting current
Raise stand off
Regulate speed
Increase cutting speed
Lower stand off
Regulate speed
Lower stand off
Change the coolant in the system
Clean the external and tank filters of the
cooling unit
Clean the gas console filter
Replace the torch O-rings, and order the
kit art.1400
oil free) to eliminate any dust build up. If possible use
a vacuum cleaner;
overheating.
SOLUTION
65