Marathon — Frequency Selection - ME-SE1
Adjustments · Voltage regulator ME-SE1
From a Marathon service manual covering: 250FDR1000, 250FDR1004, 252FDR1008, 252FDR1012, 252FDR1016, 340FDR1020, 340FDR1024, 342FDR1028, 342FDR1032. Check it applies to your exact model before use.
Before you start
- If not carefully followed the system will not be properly protected.
Procedure
- Locate the jumper labeled Hz on the ME-SE1 regulator.
- Unplug the jumper for 60 Hz (1800 rpm) operation.
- Plug the jumper together for 50 Hz (1500 rpm) operation.
Source: Marathon service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.