Adjusting The Final Gear Backlash

SHAFT DRIVE

            Final gear backlash
             0.22–0.45 mm (0.0087–0.0177 in)

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a. Install the ring gear fix bolt “1”, into the final
   gear oil drain hole.

            Ring gear fix bolt (M14)
             90890-01524
             YM-01524
                                                            d. Gently rotate the coupling gear from engage-
                                                               ment to engagement.
                                                            e. Record the reading on the dial gauge.
                                                            f. Remove the dial gauge, final gear backlash
                                                               band, and bolt.
                                                            g. Rotate the final drive pinion gear 90°.
                                                            h. Reinstall the bolt, final gear backlash band,
                                                               and dial gauge.
                                                            i. Repeat steps (d) to (h) three more times (for
                                                               a total of four measurements).
                                                            j. If any of the readings are over specification,
                                                               adjust the final gear backlash.
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                                                            EAS23590

                                                            ADJUSTING THE FINAL GEAR BACKLASH
                                                            1. Remove:
                                                             • Ring gear bearing housing bolts “1”
                                                             • Ring gear bearing housing nuts “2”
                                                            NOTE:
                                                            Working in a crisscross pattern, loosen each bolt
b. Finger tighten the bolt until it stops the ring          and nut 1/4 of a turn. After all of the bolts and
   gear from moving.                                        nuts are fully loosened, remove them.
NOTE:
Do not overtighten the bolt.
c. Install the final gear backlash band “2” and
   dial gauge “3”.
NOTE:
Make sure that the dial gauge plunger contacts
the groove “a” in the final gear backlash band as
shown in the illustration.

            Final gear backlash band                        2. Remove:
             90890-01511                                     • Ring gear bearing housing “1”
             YM-01230                                        • Dust cover “2”
                                                             • Ring gear “3”
                                                             • Ring gear shim(s) “4”
                                                             • Thrust washer “5”

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