Boom Wear Pads; Wear Pad Inspection; Boom Wear Pad Replacement - JLG G5-18A Service Manual

5. Uncap and reconnect the tilt hoses and (if equipped)
auxiliary hoses (4). Attach both sets to their
appropriate fittings until wrench-tight. Mark the
fitting, then tighten each hose firmly 1 to 1,5 flats.
6. Install the cover plate and hose clamps (3) at the
rear of the boom assembly.
7. Install the battery negative (-) cable to the battery
negative (-) terminal.
8. Start the machine and extend the extend/retract
cylinder until the rod eye of the cylinder aligns with
the pin bore in the second boom section.
9. Shut the engine OFF.
10. Install the mounting pin through the side of the
second boom section (2) and secure with the
retaining clips.
11. Start the machine and cycle the extend/retract
cylinder checking for leaks or any alignment
problems.
G5-18A, 2505
3.4

BOOM WEAR PADS

On the G5-18A a total of 14 wear pads are installed on
the boom.
Twelve of the fourteen wear pads on this boom are flat
rectangular wear pads with metal inserts. Two wear pads
on the bottom of the second section boom are channeled
for tilt hose and auxiliary hose clearance.
3.4.1

Wear Pad Inspection

Inspect all wear pads (2) for wear. If the angle
indicators (3) on the ends of the wear pads are visible, the
wear pads can be reused. If the pads show uneven wear
(front to back), they should be replaced. Replace pads as
a set if worn or damaged.
3
3.4.2

Boom Wear Pad Replacement

When replacing a wear pad on the boom, replace both
wear pads on that side of the boom; e.g.: replace top front
left and top front right wear pads at the same time.
Usually, shimming will remain the same when installing
new wear pads. All wear pads are secured to the boom
using different capscrews and washers. When installing
new wear pads, apply Loctite
mounting capscrews M10 x 1,5 and torque to 23 lb-ft
(31Nm). On 5/16 x 18 capscrews, apply Loctite
and torque to 17 lb-ft (23 Nm). Grease the new pads and
surrounding area.
The boom wear pads are mounted on the inside of the
first boom section (4) and the outside of the second boom
section (5).
Boom
3
2
MA2070
®
#242 to all wear pad
®
#242 to
3-11