Genie TMZ-50/30 Service Manual page 68

Section 4 • Repair Procedures
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PRIMARY BOOM COMPONENTS
10 Remove the retaining fasteners securing both
cable track top covers to the primary boom.
Remove both top covers from the boom.
11 Pull the hoses and cables through the cable
bridge and cable track. Lay them off to the side.
Component damage hazard.
Cables and hoses can be
damaged if they are kinked or
pinched.
12 Remove the cable track hose router clamp from
the platform end of the cable bridge.
13 Remove the cable bridge front end cover from
the platform end of the primary boom.
14 Place blocks between the cable bridge and the
cable track and secure them together.
Crushing hazard. If the cable
bridge and the cable track are not
properly secured together, the
combination could become
unbalanced and fall when
removed from the machine.
Component damage hazard. The
cable track can be damaged if it is
twisted.
15 Attach a lifting strap from an overhead crane to
the cable track.
16 Remove the mounting fasteners that secure the
cable track to the boom.
17 Remove the cable track from the machine and
place it on a structure capable of supporting it.
Crushing hazard. The cable track
could become unbalanced and fall
if not properly attached to the
overhead crane when removed
from the machine.
4 - 14
How to
Repair the Cable Track
Component damage hazard. The
cable track can be damaged if it is
twisted.
1 Remove the fasteners securing both cable track
top covers to the primary boom. Remove both
covers from the boom.
2 Visually inspect the cable track and determine
which 7-link section needs to be replaced.
3 Using a flat blade screwdriver, pry open the
hinge bar on each link of the 7-link section, plus
one more on each end making a total of 9 links.
4 Using a flat blade screwdriver at one side of the
link to be replaced, separate the connection
and open the joint slightly by sliding the link
over the link pivot. Repeat for the other side of
the link to separate the link sections.
5 Repeat step 4 for the other end of the section to
be replaced.
6 Lift up the hoses and cables and carefully
remove the damaged section of cable track.
Component damage hazard.
Hoses and cables can be
damaged if they are kinked or
pinched.
7 Lift up the hoses and cables and carefully insert
the new section of cable track.
8 Install the new section of cable track onto the
existing track. Be sure the link pivot on both
sides of the link are in place and that the track
hinges correctly
9 Securely lock the hinge bar for each link.
10 Operate the boom extend/retract function
through a full cycle to ensure smooth operation
of the new section of cable track.
TMZ-50/30
June 2005
REV B
Part No. 65162