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Cummins/Onan M-1902s — Installation of Genset Control Box

Installation

For the Cummins/Onan M-1902s, from the Cummins/Onan service manual.

Applies to: Cummins/Onan HDKA, Kubota V1505-E3BG engine

Before you start

  • Failure to mount control box below 160°F (71.1°C) may cause equipment damage or failure.
  • If using isolators, use toothed washers to prevent rotation.

Procedure

  1. Locate control box in low-vibration area with maximum accessibility.
  2. Unscrew bolts from the four vibration isolators supporting the control box.
  3. Drill holes of appropriate size and place box into position, leaving room for harness connectors.
  4. Mount toothed washers under the vibration isolators to prevent rotation.
  5. Plug the J2 (largest) and J1 harness connectors into the control box.
  6. Route harnesses against the compartment walls, away from sharp edges.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Control box must be mounted where temperature is less than 160°F (71.1°C)
  • Use J2 harness (largest connector) to engine; J1 harness to AC control box; J3 to remote control

Full service-parts list: Cummins/Onan HDKA →, Kubota V1505-E3BG engine →

Source: Cummins/Onan 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.

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