JLG G5-18A Service Manual - Manual (Page 30)

Boom
3.10 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.
3.4.2 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
® #242 to all wear pad
mounting capscrews M10 x 1,5 and torque to 23 lb-ft
(31Nm). On 5/16 x 18 capscrews, apply Loctite
® #242 to
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).
Use shims under the wear pads as required to maintain a
maximum gap of 0.06 in (1,5 mm) (6) between the wear
pad on the front and sides of the boom. The gap at the
rear of the boom should be no more than 0.12 in (3 mm).
Shims are available in four thicknesses, 0.02 in (0,5mm),
0.04 in (1 mm), 0.06 in (1,5mm) and 0.08 in (2,0mm).
MA2070
3
2
3
MY2010
4
MY2020
5
MU4080
6