Caterpillar C-3406B / C-346 — Exhaust Rocker Adjusting Screw Exchange
Maintenance · Exhaust rocker adjusting screws
For the Caterpillar C-3406B / C-346, from the Caterpillar service manual.
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Before you start
- If C-346B screws are used on C-346A and C-346 housings, model C-346B master piston return springs must also be used.
Procedure
- Remove the slotted head Caterpillar exhaust rocker adjusting screws.
- Install the Jacobs rocker adjusting screws in the exhaust rocker levers.
- Reuse the Caterpillar lock nuts.
- Discard the Caterpillar adjusting screws after substitution.
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.