JLG M400 Operator Manual - Manual (Page 57)

SECTION 4 - MACHINE OPERATION
3121215 – JLG Lift – 4-11
Raising and Lowering the Upper Boom
Depress footswitch to raise or lower the Upper Boom, with
footswitch activated, position Upper Boom Lift switch to UP
or DOWN until desired height is reached.
4.8 GENERATOR
The machine is equipped with an engine powered DC generator
connected in parallel to the 48V DC battery bank.
Automatic Operating Mode
The generator will operate in automatic mode always when
the following two conditions apply.
1. Ground Control EMS is pulled out (on), and:
2. The Generator Enable switch on the platform control
console is in the On or Enable position.
When the above conditions apply, the generator’s controller
will monitor status of the batteries, will turn on automatically
when the battery voltage drops as a result of discharge and
will turn off when batteries are fully charged.
Battery Only Operating Mode
The machine will operate in the battery only mode when the
following two conditions apply:
1. Ground Control EMS is pulled out, and:
2. The switch on the platform control console is in the Off
or Disable position.
In this mode the machine will operate as a conventional bat-
tery operated unit. The batteries can be used until they are
fully discharged.
Manual (Charge) Operating Mode
The generator will operate in manual mode always when the
following three conditions apply.
1. Ground Control EMS is pulled out, and:
2. The switch on the platform control console is in the On
or Enable position and:
3. The Manual Charge push button is activated.
Activation of the Manual Charge button will start the engine
and initiate the charging cycle even if the batteries are
charged above the level of automatic start. The operator can
initiate the charge cycle to charge the batteries to the maxi-