I'm sensing you still don't know how the adjustment works. The adjuster has nothing to do with how far the bearing pushes on the axle. The adjuster controls the end play of both axles, which both contact a block in the differential. The adjuster moves the bearing cup on the passenger side (which is a interference slip fit in the axle tube)IN to take up clearance or OUT to increase clearance.
If the adjustment is too tight , you need to back off the adjuster and tug on the axle to move the right bearing cup back against the adjuster.
The proper end play for the axles is listed in the manual you downloaded. The bearing end play for both axles is controlled by the one adjuster and measure on the right side.
If you feel the left bearing is OK, there is no need to move over to the left side unless you wish to physically check it or replace the seals on that side!