OWNER’S MANUAL
-11-
PNR-YF-05Y-A1
2
）
Do not over load
！
The operator should remember to watch the max duty current (Response to the selected duty cycle).
Keep welding current is not exceed max duty cycle current. Over-load current will damage and burn
up machine.
3
）
No over voltage
！
Power voltage can be found in diagram of main technical data. Automatic compensation circuit of
voltage will assure that welding current keeping in allowable range. If power voltage exceeds
allowable range limit, it will damage the components of machine. The operator should understand
this situation and take preventive measures.
4
）
There is a grounding screw at the back of the welding machine, with a grounding marker on it.
Before operation, welding crust must be grounded reliable with cable which section is over 6 square
millimeter, in order to prevent from static electricity and accidents because of electricity leaking.
5
）
If welding time is exceeded duty cycle limited, welding machine will stop working for protection.
Because machine is overheated, temperature control switch is on “ON’’ position and the indicator
light is yellow. In this situation, you don’t have to pull the plug to let the fan cool the machine. When
the indicator light is off, and the temperature goes down to the standard range, it can weld again.
MAINTENANCE
WARNING
：
All the maintenance and repairing work must be done at the condition that the power is
off. Please confirm the power plug is pull out of the socket before opening the machine
shell.
1. Remove dust by dry and clean compressed air regularly. If the welding machine is operated in heavy
smoke or badly polluted air, the machine needs to be cleaned every month.
2. Pressure of compressed air must be at a reasonable level in order to prevent damage to small
components of the machine.
3. Check internal circuit of welding machine regularly and make sure the cable circuit is connected correctly
and connectors are connected tightly (especially insert connector and components). If there is any rusty
or loosing parts, please do the polishing work immediately, and connect them tightly.
4. Avoiding water and steam enter into the machine. If this happened, please dry the machine then check
the insulation of the machine.
5. If the welding machine is not operated for a long time, please keep it into packing box and stored in dry
environment.
NOTES BEFORE CHECKING
