Terex Genie Z-34/22DC, Service Manual

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April 2016 Service Manual
Primary Boom Components
Part No. 139378 Z-30/20N • Z-30/20N RJ • Z-34/22
• Z-34/22N
61
5 Tag, disconnect and cap the slave cylinder
hydraulic hoses at the union. Plug the hoses
from the slave cylinder.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
6 Remove the upper cable track mounting
fasteners from the platform end of the boom.
7 Remove the cable track mounting fasteners,
then remove the cable track from the boom
and lay it flat on the ground.
Component damage hazard.
The boom cable track can be
damaged if it is twisted.
Component damage hazard.
Hoses and cables can be
damaged if they are kinked or
pinched.
8 Raise the secondary boom until the primary
boom lift cylinder rod-end pivot pin is
accessible above the mid-pivot weldment.
Turn the machine off.
9 Disconnect the battery packs from the
machine.
10 Remove all the hose and cable clamps from
the underside of the primary boom and at the
pivot end of the primary boom.
11 Attach a lifting strap of ample capacity from an
overhead 5 ton / 5000 kg crane to the primary
boom for support.
12 Locate the cables from the primary boom
cable track to the platform control box.
Number each cable and its entry location at
the platform control box.
13 Open the platform control box.
14 Tag and disconnect each wire from the cables
in the platform control box.
15 Pull all the cables out of the platform control
box.
16 Remove the front counterweight cover.
17 Remove the extension boom drive limit switch
from the side of the primary boom at the pivot
end. Do not disconnect the wiring.
18 Tag, disconnect and plug the hydraulic hoses
from the jib boom/platform rotate manifold.
19 Pull all the electrical cables and hydraulic
hoses out of the plastic cable track. Then pull
all the electrical cables and hydraulic hoses
out through the boom rest pad.
Component damage hazard.
Hoses and cables can be
damaged if they are kinked or
pinched.
20 Remove the pin retaining fastener from the
master cylinder rod-end pivot pin. Use a soft
metal drift to remove the pivot pin. Pull the
cylinder back and secure it from moving.
21 Tag, disconnect and plug the extension
cylinder hydraulic hoses. Cap the fittings on
the cylinder.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.