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FOUR STROKE – 4T
Up slope
Current
Pregas
Gas
BILEVEL – SECOND WELDING CURRENT
When the machine is in 4T mode, there is always active the BILEVEL function.
The value of the second current is automatically set to 50% of the pre-set value
of the main welding current. To enter the second welding current press the torch
button for a short time and release it. To get back to the main welding current
press the torch button for a short time and release it.
ROUTINE MAINTENANCE & INSPECTION
1. The only routine maintenance required for the Ryval range of machines is a
thorough cleaning and inspection, with the frequency depending on the usage
and the operating environment.
WARNING
2. Disconnect the Ryval from the mains supply voltage before disassembling.
3. Special maintenance is not necessary for the control unit parts in the Welder.
If these parts are damaged for any reason, replacement is recommended.
CAUTION
4. Do not blow air into the welder during cleaning. Blowing air into the welder
can cause metal particles to interfere with sensitive electronic components
and cause damage to the welder.
5. To clean the welder, disconnect it from the mains supply voltage then open
the enclosure and use a vacuum cleaner to remove any accumulated dirt and
dust. The welder should also be wiped clean. If necessary, solvents that are
recommended for cleaning electrical apparatus may be used.
6. Troubleshooting and repairing of Ryval welding equipment should only be
carried out only by suitably qualified or competent person.
7. A 'competent person' must be a person who has acquired through training,
Linde AG, Linde Gas Deutschland ©
14/16
Welding current
Down slope
Post
gas
1
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