JLG 1850SJ Service Manual - Manual (Page 93)

SECTION 4 - BOOM & PLATFORM
3121619 – JLG Lift – 4-7
5. Raise the front of the boom enough to allow connection
of the lift cylinder.
6. Attach a lifting strap to the lift cylinder. Raise the lift cyl-
inder into place and install the lift cylinder pin.
7. Connect the hydraulic lines as tagged during removal.
8. Connect the electrical lines as tagged during removal.
9. If removed, install the jib.
10. If removed install the platform.
4.3 BOOM ASSEMBLY
Assembly
NOTE: Throughout this procedure, boom sections are identified
numerically, 1-5. Boom Section 1 is at the base, Boom Sec-
tion 5 is the fly.
NOTE: During Assembly, Super Lube® lubricant (JLG p/n 3020042)
is to be moderately applied to all four inner surfaces of
both ends of each boom section to a minimum depth of
three to four feet and also to the end of section 5 that is
inserted into section 4.
NOTE: During Assembly, Super Lube® lubricant (JLG p/n 3020042)
is to be moderately applied to all outer surfaces of interior
wear pads after they are assembled to the insertion end of
boom sections. Care should be taken to avoid application
on exposed painted surfaces of the fully extended boom.
NOTE: Boom section 5 weighs approximately 1682 lbs. (763 kg).
1. Place boom section 5 on a proper supporting device.
WEAR PAD
SURFACES
AVOID APPLICATION
ON EXPOSED
PAINTED SURFACES