JLG 150HAX Operator Manual - Manual (Page 62)

SECTION 4 - MACHINE OPERATION
4-10 – JLG Lift – 3121213
Raising and Lowering the Boom
To raise or lower boom, position LIFT controller (standard
controls) or control lever (hydraulic controls) to UP or
DOWN and hold until desired height is reached.
Telescoping the Tower Boom
To extend or retract tower boom, ensure tower boom is
fully elevated, then position TOWER TELESCOPE control-
ler to IN or OUT and hold until tower boom reaches
desired position.
Telescoping the Main Boom
To extend or retract main boom, position MAIN BOOM
TELESCOPE controller to IN or OUT and hold until plat-
form reaches desired position.
4.9 SHUT-DOWN AND PARK
1. Drive machine to a reasonably well protected area.
2. Position HIGH ENGINE speed control switch on Plat-
form Console to LOW.
3. Assure main boom is fully retracted and lowered over
rear (Drive) axle; all access panels and doors closed
and secured.
4. Remove all load and allow engine to operate 3 to 5 min-
utes at LOW setting to permit faster reduction of engine
internal temperatures.
5. Turn MASTER SWITCH at Ground Control Station to
OFF and remove key.
6. Cover Platform Control Console to protect instruction
placards, warning decals and operating controls from
hostile environment.