Caterpillar C-3406B / C-346 — Final Wiring

Installation · Electrical wiring system

For the Caterpillar C-3406B / C-346, from the Caterpillar service manual.

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Procedure

1. Complete the wiring; refer to the wiring diagram.
2. Check all wiring for correct length, proper installation, tie-off and routing out of sight.
3. With the engines shut down, turn on the ignition switch and move the Jacobs dash switch from OFF to LO to HI.
4. In LO only the rear brake housing solenoid valve should activate; in HI both front and rear solenoids should activate.
5. Attach the OPERATING INSTRUCTION decal on the dash and complete and mail the Engine Brake Warranty card.

Source: Caterpillar 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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