I had to eventually replace this capacitor, as the original drifted completely out of range. It is very common. The capacitor is TC4001 ... it is located under a "can" with a hole to adjust.
You can see if it is operating by putting a voltmeter on TP4004 (right near the cap): it should read between 3V to 6V depending on USB/LSB setting, and IF-Shift position.
The adjustment procedure is called "BFO VCV", and you can find it on page 23 of the Technical Supplement in the files section.
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-Mat Breton, N8TW
Mat Breton N8TW