Terex Genie TZ-50 Service Manual

Also see for Genie TZ-50: Operator's manual

Part No. 824982 Genie TZ-50 3 - 15January 2016 Section 3 • Scheduled Maintenance Procedures2 Release the red thumbscrew at the center ofthe valve stem, to reset the valve.Note: The valve spool must be reset for theturntable rotate function to operate from themachine controls.3 Pull out and hold the red thumbscrew at thecenter of the valve stem.Result: The head of the thumbscrew shouldmove 1/4 inch / 6 mm outwards.4 Release the red thumbscrew at the center ofthe valve stem, to reset the valve.Note: The valve spool must be reset for theturntable rotate function to operate from themachine controls.Secondary Boom Down5 Locate the secondary boom down valve coil onthe function manifold. Push in and turn fully in acounter clockwise direction the red thumbscrewat the center of the valve stem.Result: The head of the thumbscrew shouldrotate one-quarter turn in a counter clockwisedirection.6 Push in and turn fully in a clockwise directionthe red thumbscrew at the center of the valvestem, to reset the valve.Note: The valve spool must be reset for thesecondary boom down function to operate fromthe machine controls.CHECKLIST B PROCEDURESPrimary Boom Down7 Locate the primary boom down valve coil onthe function manifold. Push in and turn fully in acounter clockwise direction the red thumbscrewat the center of the valve stem.Result: The head of the thumbscrew shouldrotate one-quarter turn in a counter clockwisedirection.8 Push in and turn fully in a clockwise directionthe red thumbscrew at the center of the valvestem, to reset the valve.Note: The valve spool must be reset for theprimary boom down function to operate from themachine controls.Primary Boom Up9 Locate the primary boom up valve coil on thefunction manifold. Push in and turn fully in acounter clockwise direction the red thumbscrewat the center of the valve stem.Result: The head of the thumbscrew shouldrotate one-quarter turn in a counter clockwisedirection.10 Push in and turn fully in a clockwise directionthe red thumbscrew at the center of the valvestem, to reset the valve.Note: The valve spool must be reset for theprimary boom up function to operate from themachine controls.