JLG 534D-10 - Manual (Page 41)

3.13 534D-9, 534D-10 & 544D
Boom
3.5.3 Retract Cable Removal
The removal of the retract cable is a difficult operation;
but it can be accomplished. You must be able to reach
into the rear of the boom assembly to unfasten the retract
cable socket from the cable anchor bracket weldment. If
you cannot reach this bracket, the boom sections must be
separated.
1. Remove any attachment from the quick switch
assembly. Refer to Section 3.16.1, “Disconnecting
from an Attachment.”
2. Park the machine on a hard, level surface, fully
retract the boom, level the boom assembly, place the
transmission control lever in (N) NEUTRAL, engage
the park brake and shut the engine OFF.
3. Place a Do Not Operate Tag on both the ignition key
switch and the steering wheel, stating that the
machine should not be operated.
4. Open the engine cover. Allow the system fluids to
cool.
5. Remove the battery negative (-) cable from the
battery negative (-) terminal.
6. Remove the hose guards from the rear of the first
boom section.
7. Label, disconnect and cap all extend/retract
hydraulic hoses. Cap all fittings and openings to
keep dirt and debris from entering the hydraulic
system.
8. Remove the extend/retract cylinder mounting pins
(3) from the strong back/cylinder bracket.
9. Remove the extend cable lock nuts, washers and
springs (4) from the strong back/cylinder bracket.
10. Pull the cable free of the strong back/cylinder
bracket. Fasten a rope to the cable end to aid in
reinstallation.
11. Remove the strong back/cylinder bracket mounting
bolts and remove the strong back bracket (5) from
the machine. Label and tag each set of shims being
removed from above and below the strong back.
12. Remove the push beam mounting pins (6) and from
the front of the third boom section, pull the push
beam clear of third boom section.
13. Loosen the retract cable adjustment bolts (7) and
remove all the retract cable sheave components.
14. Reaching inside the rear of the boom at the cable
anchor bracket, remove the cotter pin from the
retract cable pin. Remove the retract cable. The
retract cable should now be free.
15. Pull the retract cable through the rear of the boom
assembly. Remove the ropes and leave them in
place to aid in reinstallation.
MX0210
3 3
4 4
5
MX0220
6
7