JLG E300 Service Manual - Manual (Page 102)

SECTION 4 - BOOM & PLATFORM
4-4 – JLG Lift – 3121253
Installation of the Main Boom
NOTE: The main boom assembly weighs approximately 475
lbs. (216 kg).
1. Using suitable lifting equipment, position boom
assembly into the upper upright so the boom pivot
holes in both the boom and upright are aligned.
2. Using JLG P/N 0100011 thread locking compound
or equivalent, install the retaining bolt, keeper, and
pin that secures the main boom to the upper
upright. Torque the retaining bolt to 85 ft.lbs. (116
Nm).
3. Using JLG P/N 0100011 thread locking compound
or equivalent, install the retaining bolt, keeper, and
pin that secures the master cylinder rod end to the
main boom. Torque the retaining bolt to 35 ft.lbs. (48
Nm).
4. Using JLG P/N 0100011 thread locking compound
or equivalent, install the retaining bolt, keeper, and
pin that secures the upper lift cylinder rod end to the
main boom. Torque the retaining bolts to 85 ft.lbs.
(116 Nm).
5. Connect the hydraulic lines running to the telescope
cylinder as tagged during removal.
6. Install the cover at the rear of the boom.
7. Install the power track and hoses/lines onto the
boom support brackets and secure in place with the
retaining hardware. Refer to Figure 4-3., Power Track
Hoses.
12” ± 1”
46” ± 1”
39” ± 1”
12” ± 1”
(30.5 cm ± 2.5 cm)
(116.8 cm ± 2.5 cm)
(99 cm ± 2.5 cm)
(30.5 cm ± 2.5 cm)
MODERATELY APPLY BOOM GREASE TO
ALL FOUR OUTER SURFACES OF FLY
BOOM TUBE IN SPECIFIED LOCATION
JLG P/N 3020022
MODERATELY APPLY BOOM GREASE TO OUTER
SURFACE OF WEAR PADS ON FLY BOOM (8X)
JLG P/N 3020022
MODERATELY APPLY BOOM GREASE TO
ALL FOUR INNER SURFACES OF BASE
BOOM TUBE IN SPECIFIED LOCATION
JLG P/N 3020022
Figure 4-2. Boom Lubrication Instructions