CPXD-350,500 SERVICE MANUAL
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5. Correspondence for user needs expect for a standard (continued)
5.9 Using arc spot timer
Arc spot timer SCT-31
1. Remove the bolts fastening the upper cover of the welding power source to open the cover.
Connectors for arc spot timer is located close to 4P terminal board on fan frame.
2. Lead in cables connected with arc spot timer through grommet with film on the rear side of the
welding machine to insert into the connectors.
3. Close the upper cover of the welding machine.
4. Bolt the arc spot timer together with the upper cover. (See the figure shown below.)
When using arc spot timer, initial current, self-hold and crater are not operating.
Arc spot timer SCT-31
Connector for arc spot timer