jcb JS300 Service Manual page 826

Fig 42.
Assemble the Socket Box Wrench and Nut Adapter
(see Service Tools, Section 1) on the ring nut.
Tighten the ring nut (see Torque Settings at end of
this section)
Fig 43.
E-165
C069590
18 Stake the ring nut near seat no. 6
19 Replace O-ring into it's seat in the ring gear.
C068920
K Fig 46. ( T E-166)
9813/5100-1
Section E - Hydraulics
Swing Gearbox
Dismantling and Assembly
Fig 44.
Fig 45.
C068930
C069630
E-165