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Cummins/Onan 1B Series / 1B Series Plant — Grounding the plant

Installation · electrical system

For the Cummins/Onan 1B Series / 1B Series Plant, from the Cummins/Onan operator's manual.

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Before you start

  • Never connect this wire to a water pipe or to a ground used by radio system.

Procedure

  1. If grounding is called for in local codes or radio interference necessitates it, drive a 1/2 inch pipe into ground as close to plant as practicable.
  2. Pipe must penetrate moist earth. Connect approved ground clamp to pipe.
  3. Run a No. 10 or 12 wire from clamp to negative battery terminal on control panel or the M2 generator lead.
  4. Never connect this wire to a water pipe or to a ground used by radio system.

Specs & values

  • No. 10 or 12 wire
  • 1/2 inch pipe

Source: Cummins/Onan 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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