Ronch Ronch Weld 315MAX, User Manual

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26
S/N Troubles Reasons Solution
display disaccord with
the setting current The maximum current is not
accordant (Please refer to 3.1) Adjust the potentiometer VR5
(RT1) on the current meter
5
No no-load voltage
output
The machine is damaged
Check the main circuit and the
PCBs
6
No current output in the
welding
Welding cable is not connected
with the two output of the welder. Connect the welding cable to the
welder’s output
Welding cable is broken
Wrap, repair or change the
welding cable
Earth cable is not connected or
loosen
Check the earth clamp
7
Not easy to start arc in
the welding, or easy to
cause sticking
The plug loosen or connect not well Check and tighten the plug
Oil or dust covered the workpiece Check and clear out
MMA/TIG welding selection is
wrong
Selecting the MMA welding
8
The arc is not stable in
the welding process
The welding current adjusted too
low
Increase the welding current
The arc is too long in the welding Use the short arc operation
9
The welding current can
not be
adjusted The welding current potentiometer
in the front panel connection not
so good or damaged
Repair or change the
potentiometer
10
The minimum &
maximum on the current
display disaccord with
the actual current
The minimum current is not
accordant
(Please refer to 3.1)
Adjust the potentiometer VR3
(RT1) on the PCB
The maximum current is not
accordant
(Please refer to 3.1)
Adjust the potentiometer VR4
(RT1) on the PCB
11
The penetration of
molten pool is not
enough
The welding current adjusted too
low
Increase the welding current
The arc is too long in the welding Use the short arc operation
The arc force adjusted too small
Increase the arc force
12 Arc blow
Airflow disturbance Use the shelter from airflow
The electrode eccentricity
Adjust the electrode angle
Change the electrode
Magnetic effect
Incline the electrode to the
opposite way of the magnetic
blow