JLG 740AJ, Service And Maintenance Manual, Page: 165 / 582

SECTION 3 - CHASSIS & TURNTABLE
3121160 3-113
14. Apply clean grease to a new seal ring (4) and assemble it
in the seal ring groove in the rotor set contact side of
manifold (7).
NOTE: The manifold (7) is made up of several plates bonded
together permanently to form an integral component. The
manifold surface that must contact the rotor set has it’s
series of irregular shaped cavities on the largest circumfer-
ence or circle around the inside diameter. The polished
impression left on the manifold by the rotor set is another
indication of which surface must contact the rotor set.
15. Assemble the manifold (7) over the alignment studs and
drive link (10) and onto the rotor set. Be sure the correct
manifold surface is against the rotor set.
16. Apply grease to a new seal ring (4) and insert it in the
seal ring groove exposed on the manifold.
17. Assemble the commutator ring (6) over alignment studs
onto the manifold.
18. Assemble a new seal ring (3) flat side up, into commuta-
tor (5) and assemble commutator over the end of drive
link (10) onto manifold (7) with seal ring side up.