Cat 215 pump drive gearbox

Hello I’m looking for information on setting bearing clearance on the pump drive gearbox bearings on a cat 215 serial 95z00480. My manual has a small section on setting the center bearing but not the two outer ones. I’m thinking that there is an entire section for the pump drive gearbox repair that is not in the manual. I am in process of replacing all the bearings as I could hear the gears rattling a little and it made a good winter project, like I really needed another one.