JLG 1250AJP Service Manual - Manual (Page 252)

SECTION 4 - BOOM & PLATFORM
4-12 – JLG Lift – 3121171
13. If necessary, remove the shoulder screws, retaining
ring, and pin that secures the barrel end of the level
cylinder to the main boom fly section and remove
the level cylinder from the fly section.
Assembly
1. If removed during assembly, install the level cylinder
into the fly section. Install the shoulder screws,
retaining ring, and pin that secures the barrel end of
the level cylinder to the main boom fly section.
2. If removed during assembly, install the pin retainer
sleeve, bolt (screw prior to S/N 80869), and nut
securing the lower link to the upper link. On
machines using the bolt and nut, torque to
190 ft.
lbs. (260 Nm) . Position the upper link to the boom
nose and secure in place with the pivot pin, keeper
pin, and bolt.
3. If removed during assembly, install the telescope
cylinder into the fly section. Install the shoulder
screws, retaining rings, and pin that secures the rod
end of the telescope cylinder to the main boom fly
section.
4. Using an adequate lifting device, slide the main fly
section and telescope cylinder into the main boom
base section.
NOTE: The main boom fly section including telescope cylin-
der and level cylinder weighs approximately 2000
lbs. (907 kg).