Lincoln Electric PCT125M manual Recommended

Page 19

D-4

 

TROUBLESHOOTING

 

D-4

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

PROBLEMS

POSSIBLE CAUSE

 

RECOMMENDED

 

(SYMPTOMS)

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

FUNCTION PROBLEMS

 

 

 

 

 

Only a brief spurt of a Pilot Arc

a. Make sure the air pressure is

a. Put the Pro-Cut in Purge and

appears

set correctly

 

adjust the air pressure to 55-65

 

 

 

 

psi while the air is flowing.

 

 

b. Consumables may be improper-

b. Make sure an electrode, swirl

 

 

ly assembled.

 

ring, nozzle and shield cup are

 

 

 

 

assembled in the torch.

 

 

c. There may be oil in the air.

c. Check the filters in the regula-

 

 

 

 

tors for oil. Replace if neces-

 

 

 

 

sary and eliminate the source of

 

 

 

 

oil.

 

 

d. The Pro-Cut may be in expand-

d. This is a normal condition which

 

 

ed metal mode.

 

occurs after several long pilot

 

 

 

 

arcs have been pulled in a row.

 

 

 

 

After a while, the Pro-Cut will

 

 

 

 

return to the standard pilot arc if

 

 

 

 

no pilot arcs are pulled for sev-

 

 

 

 

eral seconds.

 

 

e. The swirl ring may have holes

e. Some swirl rings were shipped

 

 

out of spec.

 

with the swirl hole diameter too

 

 

 

 

large. If possible, use plug

 

 

 

 

gages to make sure the swirl

 

 

 

 

hole diameter is not larger than

 

 

 

 

.028”.

 

 

f. The Pro-Cut is not working prop-

f.

Refer to the troubleshooting

 

 

erly.

 

guide for the Pro-Cut 125.

 

 

 

Electrode Stuck in Torch head

a. The duty cycle may have been

a. Operate the Pro-Cut within the

 

 

exceeded

 

duty cycle limits (125 Amps at

 

 

 

 

60%, 100 Amps at 100%.)

 

 

b. Make sure the Pro-Cut has the

b. Install a S21237 solenoid kit.

 

 

larger solenoids (this applies to

 

 

 

 

codes 10097 and lower only)

 

 

 

 

c. Make sure the air pressure is

c. Put the Pro-Cut in Purge and

 

 

set properly.

 

adjust the air pressure to 55-65

 

 

 

 

psi while the air is flowing.

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

PLASMA TORCH

Image 19
Contents MagnumPCT125/PCT125M July Safety Depends on YouPlasma Cutting or Gouging can be hazardous SafetyPlasma ARC can injure Page Sûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Specifications Summary InstallationTorch Electrode Swirl Ring Nozzle Cup General Description InstallationElectric Shock can kill Without an interface kit Operation OperationMaintenance MaintenanceTools Required Maintenance Maintenance HOW to USE Troubleshooting Guide TroubleshootingFunction Problems Troubleshooting Recommended Plasma Torch Plasma Torch Plasma Torch Precaucion Aviso DE