JLG E45A_AJ ANSI Service Manual - Manual (Page 33)

SECTION 2 - PROCEDURES
3120765 – JLG Lift – 2-17
2.9 WEAR PADS
1. Shim up wear pads until snug to adjacent surface.
2. Replace wear pads when worn to thickness shown
below.
3. Adjust wear pads as follows:
a. Loosen jam nut on adjustment bolt, turn bolt CW
until wear pad is snug to adjacent surface.
b. After adjustments have been made, tighten the
jam nuts on wear pad bolts.
2.10 BOOM MAINTENANCE
Removal
1. Remove the platform/support as follows:
a. Disconnect electrical cable from control con-
sole.
b. Using an overhead crane or suitable lifting
device, strap support the platform/support.
c. Remove hardware from pin #1. Using a suitable
brass drift and hammer, remove pin #1 from the
platform support.
d. Supporting the platform/support, remove the
hardware from pin #2. Using a suitable brass
drift and hammer, remove pin #2 from the fly
boom and remove the rotator.
e. Supporting the slave cylinder, remove the hard-
ware from pin #3. Using a suitable brass drift
and hammer, remove pin #3 from the fly boom.
f. Tag and disconnect hydraulic lines to the slave
leveling cylinder. Use a suitable container to
retain any residual hydraulic fluid. Cap hydraulic
lines and ports. Remove the slave cylinder.
2. Remove the boom from upright as follows:
a. Remove hardware securing the cover plate on
the side of the base boom section and remove
hose clamps. Disconnect wiring harness from
ground control harness connector.
HYDRAULIC LINES AND PORTS SHOULD BE CAPPED IMMEDI-
ATELY AFTER DISCONNECTING LINES TO AVOID ENTRY OF
CONTAMINANTS INTO SYSTEM.
b. Tag and disconnect hydraulic lines from boom
to control valve. Use a suitable container to
retain any residual hydraulic fluid. Cap hydraulic
lines and ports.
c. Using a suitable lifting equipment, adequately
support boom weight along entire length.
Figure 2-20. Wear Pad Thickness
Table 2-4.Wear Pad Thickness
Pad
Thickness of
New Pad
Replace When Worn to:
A 0.75" 19 mm 0.375" 9.5 mm
B 0.5" 13 mm 0.3125" 8 mm
C 0.5" 13 mm 0.3125" 8 mm