Cummins/Onan — Gear Cover Installation
Repair & overhaul
From a Cummins/Onan service manual — check it applies to your exact model before use.
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Procedure
- Remove mounting screws and loosen gear cover by tapping with soft-faced hammer.
- Ensure pin in gear cover engages metal-lined hole in governor cup.
- Turn governor cup so metal-lined hole is at three o'clock position.
- Smooth side of governor yoke must ride against governor cup.
- Turn governor arm and shaft clockwise as far as possible; hold until gear cover installed flush.
- Be careful not to damage gear cover oil seal.
- Adjust roll (stop) pin to protrude 3/4 inch from cover mounting surface.
Tools required
- soft-faced hammer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Roll pin protrusion 3/4 inch
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.