JLG T500J, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
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17. Apply grease to a new seal ring (4) and insert it in the
seal ring groove exposed on the manifold.
18. Assemble the commutator ring (6) over alignment studs
onto the manifold.
19. 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.
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20. If shuttle valve components items #21, were removed
from the end cover (2) turn a plug, loosely into one end
of the valve cavity in the end cover. A 3/16 inch Allen
wrench is required.
21. Assemble a new seal ring (4) into end cover (2) and
assemble end cover over the alignment studs and onto
the commutator set. If the end cover has only 5 bolt
holes be sure the cover holes are aligned with the 5
threaded holes in housing (18). The correct 5 bolt end
cover bolt hole relationship to housing port bosses.