JLG M4069 Operator Manual - Manual (Page 55)

SECTION 4 - MACHINE OPERATION
3121638 – JLG Lift – 4-1
SECTION 4. MACHINE OPERATION
4.1 DESCRIPTION
This machine is a self-propelled hydraulic lift equipped with a
work platform on an elevating scissor mechanism. Vibrations
emitted by these machines are not hazardous to an operator in
the work platform. The equivalent continuous A-Weighted
sound pressure level at the work platform is less than 70 dB(A).
The primary operator control station is in the platform. From
this control station, the operator can drive and steer the
machine in both forward and reverse directions. The machine
has a Ground Control Station which will override the Platform
Control Station. Ground Controls operate lift and lower and are
to be used in an emergency to lower the platform to the ground
should the operator in the platform be unable to do so. Ground
Control is also to be used in Pre-Start Inspection.
4.2 POWER SELECT
Platform/Ground Select
The Platform/Ground Select switch directs power to the Ground
or Platform controls as selected. For power, the POWER/EMER-
GENCY STOP switch must also be pulled out (on).
4.3 RAISING AND LOWERING
Raising & Lowering
To raise or lower the platform, either use Lift or Lower function
and hold switch until desired elevation is reached.
DO NOT LOWER WITHOUT COMPLETELY RETRACTING PLATFORM EXTENSION.