Terex Genie Z-40/23N, Service And Repair Manual

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Service and Repair Manual September 2016
Jib Boom Components
30 Z-40/23N, Z-40/23N RJ Part No. 1268528
How to Bleed the Jib Boom Rotator
How to Bleed the Jib Boom
Rotator
Note: This procedure will require two people.
1 Turn the key switch to ground controls and pull
out the red Emergency Stop buttons to the on
position at both the ground and platform
controls.
2 Connect a clear hose to the top bleed valve.
Place the other end of the hose in a container
to collect any drainage. Open the top bleed
valve, but do not remove it.
1 top bleed valve
2 clear hose
3 container
4 bottom bleed valve
3 Move and hold the function enable toggle
switch to either side and move and hold the jib
boom rotate toggle switch to the right for
approximately 5 seconds, then release it.
Repeat three times.
Crushing hazard. Keep hands
and head clear of the jib boom
during rotation.
4 Move and hold the function enable switch to
either side and move and hold the jib boom
rotate toggle switch to the left for
approximately 5 seconds, then release it.
Repeat three times.
5 Fully rotate the jib boom to the left and
continue holding the jib boom rotate toggle
switch until air stops coming out of the bleed
screw.
Crushing hazard. Keep hands
and head clear of the jib boom
during rotation.
6 Rotate the jib boom to the right until the jib
boom is centered.
7 Open the bottom bleed screw.
8 Rotate the jib boom to the right and continue
holding the platform rotate toggle switch until
air stops coming out of the bleed screw.
Crushing hazard. Keep hands
and head clear of the jib boom
during rotation.
9 Close the bleed screw.
10 Rotate the jib boom full left and right and
inspect the bleed screws for leaks.
Crushing hazard. Keep hands
and head clear of the jib boom
during rotation.
11 Turn the key switch to the off position and
clean up any hydraulic oil that may have
spilled.