5.
Remove the hardware securing the cylinder anchor
pin (3) to the mast section #5 (4). Using a suitable
brass drift, slowly drive the pin out, just enough to
release the cylinder. The pin must stay engaged to
hold the lower jib.
6.
Remove the cylinder and place in a suitable area.
Jib Cylinder Disassembly
Refer to Section 7.
Jib Cylinder Installation
NOTE: Coat inside diameter of bushings with multi-purpose
grease prior to installing pins.
1.
Position the jib cylinder using suitable slings or sup-
ports. Align barrel end and pin mounting holes on
the mast.
2.
Using a mallet, drive the pin (3) through the barrel
end until being able to install the pin securing hard-
ware.
3.
Repeat step 2 for the cylinder rod pin (2). Lift or
lower the platform to align rod end and pin mounting
holes.
4.
Install hose clamp on cylinder barrel. Remove cylin-
der port plugs and install cylinder holding valve:
Refer to Section 7.
5.
Perform a few jib movements from the ground con-
trol station to bleed the air from the circuit and to
check for proper operation.
6.
Check hydraulic fluid level and adjust accordingly.
31210090
– JLG Lift –
SECTION 6 - JIB AND PLATFORM
6-3