Its now time to service the sub chassis.
Carefully move the pickup positioning lever arrowed away from the cam.
Remove the circlip arrowed,
do not lose the washer underneath it, and lift off the cam.
Remove the nut and circlip (arrowed)
and lift out the gear and its shaft.
This is the underside of the cam
remove traces of old grease,
This is the top side of the cam
Dont forget to remove old grease from the cam's central bearing and the spigot.
Apply new grease carefully and sparingly, do not apply grease to the various levers on the cam itself.