JLG G5-18A Service Manual - Manual (Page 24)

Boom
3.4 G5-18A/2505
16. Pull the second boom section halfway out of the first
boom section, reposition the sling, balancing the
second boom section and remove from the first
boom section.
17. Set the second boom section on level ground. Set
the complete boom on suitable stands to begin tear
down.
18. Inspect the boom and welds. Consult your local JLG
distributor if structural damage is detected.
19. Inspect hoses, hardware, wear pads, mounting
points and other components visible with the first
boom section. Replace any item if damaged.
20. Inspect all wear pads for wear. (Refer to Section
3.4.1, “Wear Pad Inspection.”)
3.3.2 First Boom Section Removal
1. Temporarily install the battery negative (-) cable to
the battery negative (-) terminal.
2. Start the machine and raise the first boom section to
gain access to the lift cylinder pin and the comp
cylinder pin.
Note: DO NOT activate ANY boom function other than
the boom lift function. Activating the extend/retract, tilt or
auxiliary function could cause hydraulic oil to spray onto
the machine and/or surrounding areas.
3. Remove the battery negative (-) cable from the
battery negative (-) terminal.
4. Support the first boom section by placing a sling at
the balance point of the section.
5. Support the lift/lower cylinder and remove the lock
bolt (1) and then the rod end pin (2). Lower the lift/
lower cylinder onto the frame rails.
6. Remove the lock bolt and pin (3) from the rod end of
the compensating cylinder on the first boom section.
Rest the cylinder on the machine frame.
7. Remove the lock bolt and pivot pin (4) from rear of
first boom section.
8. Lift the first boom section off machine and set on
level ground or supports being careful not to damage
the tubes on the bottom of the boom.
9. Inspect the boom and welds. Consult your local JLG
distributor if structural damage is detected.
10. Inspect hoses, hardware, wear pads, mounting
points and other components visible with the first
boom section. Replace any item if damaged.
11. Inspect all wear pads for wear. (Refer to Section
3.4.1, “Wear Pad Inspection.”)
MY1970
2
1
MY1980
4
3