JLG 4013PS Service Manual - Manual (Page 35)

3-3 3508PS, 3509PS, 3512PS, 3513PS, 4008PS, 4009PS, 4012PS, 4013PS, 4017PS, 40.8, 40.9
Boom
3.1 BOOM SYSTEM COMPONENT
TERMINOLOGY - TWO AND THREE
SECTION BOOM
To understand the safety, operation and maintenance
information presented in this section, it is necessary that
the operator/mechanic be familiar with the names and
locations of the major assemblies of the boom system.
The following illustration identifies the components that
are referred to throughout this section.
MZ1480
SECOND
BOOM
SECTION
FIRST
BOOM
SECTION PIVOT PIN
EXTEND/RETRACT
CYLINDER
TILT CYLINDER
ACCESS
PANEL
QUICK SWITCH
ACCESS
PANEL
QUICK SWITCH
SECOND
BOOM
SECTION
EXTEND/RETRACT
CYLINDER
PIVOT PIN
FIRST
BOOM
SECTION
THIRD
BOOM
SECTION
THREE SECTION BOOM
TWO SECTION BOOM
TILT CYLINDER