GAC — Removing an Existing Mechanical Governor
A GAC service procedure — check it applies to your exact model before use.
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Before you start
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Procedure
- Oil must be removed from the mechanical governor.
- Remove the rear housing of the existing mechanical governor and disconnect the governor assembly from the fuel rack.
- Remove the flyweight assembly.
- Remove the intermediate governor housing, this leaves only the rack and camshaft protruding from the housing.
- Remove the oil hex plug located on the pump between the fuel rack and the camshaft to allow any oil which leaks from the fuel rack to drain back into the pump.
Source: manual:295-Series Pump Mounted Actuator with Position Feedback Sensor.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.