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Magnum MTT25 / MTT25CAN — Manual Starting of the Unit

Operation · Engine / generator

For the Magnum MTT25 / MTT25CAN, from the Magnum operator's manual.

Applies to: Magnum MTT25, Magnum MTT25CAN, Isuzu 4LE1NYGV-01 / 4LE1NYGV-03E engine, Isuzu 4LE1NYGV-03G / 4LE1NYGV-03E engine

Before you start

  • CARBON MONOXIDE: USING A GENERATOR INDOORS CAN KILL YOU IN MINUTES.
  • Never start the unit under load. The circuit breakers must be in the OFF (O) position when starting in Manual mode.

Procedure

  1. Move the Control Power switch to the ON (I) position.
  2. LCD window displays system information and all LEDs flash, then the Ready screen indicates Manual mode.
  3. Press ENGINE START; the Prestart screen (if equipped) counts down from 20 seconds to 0.
  4. The Starting screen is displayed; the engine cranks and starts running.
  5. The Running screen displays; the 45 second V Detect time delay begins counting down.
  6. If the engine does not start it pauses 15 seconds and makes up to three crank cycles total.
  7. If it does not start within three cycles, 'SD START FAIL' is shown; wait two minutes and press FAULT RESET, then ENGINE START.
  8. Check for excessive noise or vibration and any coolant, oil or fuel leaks before applying loads.
  9. Check AC output voltage and correct it using the fine voltage adjustment screw (rheostat).
  10. Check the frequency is approximately 60 Hz with no loads.
  11. Switch the main circuit breaker to ON (I), then add loads by switching the respective circuit breakers to ON (I).

Specs & values

  • Engine operating speed 1800 rpm
  • No-load frequency approximately 60 Hz

Source: Magnum operator's 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.

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