Is there a factory setting on a latch spring adjustment or a D2 Cat ?

My service manual only states that, "The latches are set at the factory to permit disengagement of the pinion at a clutch shaft speed of 3515 RPM."

Every one I've done so far have had enough variation in the spring strength that the adjustments are all different. After I did about three of 'em I got pretty good at judging how much squeeze I had to put on the latches by hand to get them to release close to the proper RPM range, but the closest I've ever got still had to be tightened up one more time once installed in the machine. It's better to sneak up on it until it's right than to risk over speeding the pony with one that's too tight. The best I can describe it is a decent amount of squeeze on both ends of the latches by hand to make it kick out. If it's difficult to make them release with one hand they're probably too tight. Just remember when you try it for the first time in the machine be prepared to disengage the starting clutch handle quickly in case they don't want to release quite at the right time.

I'll go along with Toby on this. The ones I've done, I started with the screws flush with the housing. .and fine tuned after I got 'em going again. There may be a factory spec for 'em, but if there is, I've never seen it published anywhere.

All I can add is that if adjustment is anything like my D4 then it is a bit of a fiddle. However once you've gotton to grips with it first time around you quickly pick up speed on the job and you'll soon be doing it in far less time!

Julian.

I would make the screws flush with the latches but describing releasing them by hand horrifies me, if you have engaged the pinion, don't put your bare fingers anywhere near them, the results could be very painful.