JLG 4017PS Service Manual - Manual (Page 48)

Boom
3-10 3706PS, 3707PS, 4014PS, 4017PS, 33.7, 37.6, 37.7
3.4 BOOM SYSTEM COMPONENT
TERMINOLOGY - 4014PS
The following illustrations identify the components that
are referred to throughout this section.
MAM0680
SECOND
BOOM
SECTION
THIRD
BOOM
SECTION
RETRACT CHAIN
(inside boom)
QUICK COUPLER
FIRST
BOOM
SECTION
TILT
CYLINDER
HOSE CARRIER
(inside boom)
EXTEND/RETRACT CYLINDER
EXTEND CHAINS
(inside boom)