Genie Z80/60 Service Manual page 129

June 2011
REV B
5 Support the barrel end of the jib boom cylinder
with another suitable lifting device.
6 Remove the pin retaining fastener from the jib
boom lift cylinder barrel-end pivot pin.
7 Use a soft metal drift to remove the pin and let
the cylinder hang down.
Crushing hazard. The jib boom
could become unbalanced and fall
if not properly supported when the
jib boom lift cylinder barrel-end
pivot pin is removed.
8 Secure the jib boom bellcrank to prevent it from
moving.
9 Remove the hose and cable clamp from the jib
boom pivot pin.
10 Remove the pin retaining fastener from the jib
boom pivot pin. Do not remove the pin.
11 Place blocks under the platform leveling
cylinder for support. Protect the cylinder from
damage.
12 Use a soft metal drift to remove the pin.
Carefully remove the jib boom from the primary
boom.
Crushing hazard. The jib boom
could become unbalanced and fall
if not properly supported when
removed from the machine.
Part No. 88619
13 Remove the pin retaining fasteners from the jib
boom lift cylinder rod-end pivot pin. Do not
remove the pin.
14 Slide both of the jib boom leveling arms off of
the jib boom cylinder rod-end pivot pin and lay
them off to the side.
15 Attach a lifting strap from an overhead crane to
the lug on the rod end of the jib boom lift
cylinder.
16 Attach a lifting strap from a second overhead
crane to the jib boom bellcrank.
17 Use a soft metal drift to remove the jib boom lift
cylinder rod-end pivot pin. Remove the jib boom
lift cylinder and jib boom bellcrank from the
machine.
Crushing hazard. The jib boom lift
cylinder and jib boom bellcrank
could become unbalanced and fall
if not properly supported when
they are removed from the
machine.
Crushing hazard. The platform
leveling cylinder may fall if not
supported when the rod-end pivot
pin is removed.
Z-80/60
Section 4 • Repair Procedures
JIB BOOM COMPONENTS
4 - 27