Huawei CG1-2, Operating Instructions Manual, Page: 22 / 24

CG1-2A H Beam cutter
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of wing plate is not accurate. Calibrate as b step.
2) The injection stream of cutting oxygen is abnormal
a. The injection stream has offset angle
b. The injection stream has bifurcation.
c. The injection stream is too short (the length must be above 80mm.)
Clean tip or adjust cutting oxygen valve. If problems can not work out, a new tip is replaced.
Otherwise, web plate cutting and wing plate cutting can not work.
3）The wing plate motor and web plate motor do not run.
Possible Cause Inspection Step Correction
1) Power is not supplied Check the power supply
2) Fuse blown Check the fuse Replace
3 ） Defective Drive-
switch
Check that whether the click can be
heard under the condition that the
switch is on. (The click shows the
switch doesn’ t be damaged.)
Repair
4）Broken power cable Check the cable with a tester.
Repair or
Replace
2）The motor will not run while the power supply is on.
Possible Cause Inspection Step Correction
Disconnection of
10Ω resistance
Remove the electric panel and check whether the
resistance is good. Replace
Carbon brush of
motor is jammed Take out the carbon brush, grind the forepart and fix
it. If the problem can’ t still be solved, then change
a new one. Replace
Motor is burnt out Use the universal meter to check if the motor is
good.
Replace
3）During operation, the machine brings a big noise.
Possible Cause Correction
1）Skidding gear Remove the gear case apart and rivet the gear again.
2）Damaged gear
Check whether the turbine has been worn and worm
has bad burr. Then replace the bad parts.
3）Damaged motor Change the motor.