JLG 800A_AJ Service Manual - Manual (Page 221)

SECTION 4 - BOOM & PLATFORM
3120858 – JLG Lift – 4-7
Installation
1. Using all applicable safety precautions, carefully lift
boom assembly to align the pivot holes in the boom
with those of the upright.
NOTE: The upper boom alone weighs approximately 2226
lbs. (1010 kg). Including the slave cylinder, rotator,
and platform support the assembly weighs approxi-
mately 3185 lbs. (1445 kg).
2. Using a suitable brass drift and hammer, install the
pivot pin into the upright. Install the bolt and keeper
pin securing the boom pivot pin to the upright.
3. Install the Master Cylinder as follows:
a. Using an adequate supporting device, align the
master cylinder with the mounting holes on the
boom and upright.
NOTE: The master cylinder weighs approximately 58.5 lbs.
(26.5 kg).
b. Install the master cylinder rod end pin. Install the
bolt and keeper pin securing the master cylinder
rod end pin to the upright.
NOTE: When installing the master cylinder rod end pin,
insert the keeper hardware pin to prevent the pin
from inserting too far.
c. Install the barrel end retaining pin. Install the bolt
and keeper pin securing the master cylinder bar-
rel end pin to the base boom section.
d. Connect hydraulic lines to the master cylinder as
tagged during removal.