4 - 10
Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N
Part No. 139378
June 2011
Section 4 • Repair Procedures
REV A
9 Remove the pin retaining fasteners from the jib
boom lift cylinder rod-end pivot pin. Do not
remove the pin.
10
Models without rotating jib boom:
Remove
both of the jib boom leveling links from the bell
crank.
Models with rotating jib boom:
Remove both
of the jib boom leveling links from the jib boom
rotator.
11 Attach a lifting strap from an overhead crane to
the rod-end of the jib boom lift cylinder.
12
Models without rotating jib boom:
Use a soft
metal drift to remove the jib boom lift cylinder
rod-end pivot pin. Remove the jib boom lift
cylinder from the bell crank.
Models with rotating jib boom:
Use a soft
metal drift to remove the jib boom lift cylinder
rod-end pivot pin. Remove the jib boom lift
cylinder from the jib boom rotator.
Crushing hazard. The jib boom
lift cylinder could fall when the pin
is removed if not properly
supported by the overhead crane.
JIB BOOM COMPONENTS
3-2
Jib Boom Bell Crank
(models without rotating
jib boom)
How to Remove the Jib Boom
Bell Crank
Note: Perform this procedure with the boom in the
stowed position.
Note: When removing a hose assembly or fitting,
the O-ring on the fitting and/or hose end must be
replaced and then torqued to specification during
installation. Refer to Section 2,
Hydraulic Hose and
Fitting Torque Specifications.
1 Remove the Jib Boom, See 3-1,
How to
Remove the Jib Boom.
2 Support and secure the jib boom bell crank to
an appropriate lifting device.
3 Remove the pin retaining fasteners from the
slave cylinder rod-end pivot pin. Do not remove
the pin.
4 Place a block of wood under the platform
leveling slave cylinder for support. Protect the
cylinder rod from damage.
5 Remove the pin retaining fasteners from the jib
boom bell crank at the extension boom. Use a
soft metal drift to remove the pin.
6 Use a soft metal drift to remove the slave
cylinder rod-end pivot pin.
7 Remove the jib boom bell crank from the
extension boom.
Crushing hazard. The jib boom
bell crank could become
unbalanced and fall when the pins
are removed if not properly
supported and secured to the
lifting device.
Summary of Contents for Z-30/20N
Page 1: ......
Page 148: ...6 46 June2011 Section 6 Schematics 6 45 Power Cable Wiring Diagram...
Page 149: ...6 47 Section 6 Schematics June2011 6 48 Drive Contactor Panel Wiring Diagram...
Page 152: ...6 50 June2011 Section 6 Schematics Manifold and Limit Switch Wiring Diagram 6 49...
Page 153: ...6 51 Section 6 Schematics June2011 6 52 LVI BCI Option Wiring Diagram...
Page 156: ...6 54 June2011 Section 6 Schematics 6 53 Charger Interlock Option...
Page 157: ...6 55 Section 6 Schematics June2011 6 56 CTE Option CE Models...
Page 160: ...6 58 June2011 Section 6 Schematics Hydraulic Schematic 6 57...
