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OPERATING CONTROLS AND PROCEDURES
Boom Lift Control Lever (Single Axis Option)
The boom LIFT control lever (17) is located on the right
armrest. Pull lever back to raise the boom. Push lever
forward to lower the boom.
Main Hoist Control Lever (Single Axis
Option)
The MAIN HOIST control lever (18) is located on the right
armrest. Push lever forward to lower the cable. Pull lever
back to raise the cable.
Boom Lift And Main Hoist Control Lever
(Dual Axis Option)
The boom lift/main hoist control lever (19) is located on the
right armrest. Push the control lever to the right to lower the
boom, or to the left to raise the boom.
When used for main hoist, push the control lever forward to
lower the cable or pull back to raise the cable.
Telescope Control Foot Pedal (Optional)
The telescope control foot pedal (20), supplied when the
crane is equipped with an auxiliary hoist, is located on the left
side of the cab floor. Push forward on the top of the pedal to
extend the boom. Push down on the bottom of the pedal to
retract the boom.
Hoist Rotation Indicators
Each of the hoist rotation indicators (21) is located on top of
each hoist control lever. Each indicator is electronically
driven by a signal from an electronic transmitter and sensor
attached to its related hoist. Each HRI pulses when its hoist
is running so the operator's thumb can sense it.
Drive Axle Selector Switch
The DRIVE AXLE selector switch (22) is located on the left
side of the front console. This two-position rocker switch is
placarded 2WD (high range) and 4WD (low range). The
switch controls a solenoid valve energized for 2WD that
operates the speed range and axle disconnect cylinders on
the transmission. When the switch is in the 4WD position, the
square amber LED on the switch is illuminated.
Outrigger Control Switches
NOTE:
The hydraulic boost switch (55) must be positioned
to LOW to function the outriggers
The outrigger selector panel (23) is located on the left side of
the front console. There are four three-position, spring
centered to off rocker switches on the panel. These switches,
in conjunction with the OUTRIGGERS Extension/Retraction
switch, provide control of all four outrigger extension and
3-10
jack cylinders. Positioning any one of the EXTENSION or
JACK switches so that the desired component is selected,
energizes the solenoid valve for the selected component.
When the OUTRIGGERS Extension/Retraction switch is
p o s i t i o n e d t o E X T E N D o r R E T R A C T, t h e s e l e c t e d
component moves in the selected direction.
Outriggers Extend/Retract Switch
The OUTRIGGERS EXTEND/RETRACT switch (24) is
located on the top right of the front console. The switch is a
three-position, spring centered to off rocker switch. It has two
placarded positions, EXTEND and RETRACT, and is used in
conjunction with the switches on the outrigger selector panel
to control the operation of the jack and extension cylinders.
After positioning the switch on the outrigger selector panel,
positioning the OUTRIGGER Extend/Retract switch to
EXTEND or RETRACT energizes the control solenoid to
allow hydraulic fluid to flow through the control solenoid
valve and the individual solenoid valve to move the selected
component in the selected direction.
Swing Brake Control Switch
The SWING BRAKE control switch (25) is located on the left
side of the front console. This two-position rocker switch
(ON/OFF) is used to control a hydraulic valve that directs a
regulated flow of pressure to and from the swing brake.
Positioning the switch to ON will apply the swing brake and
positioning the switch to OFF will release the swing brake.
When the switch is in the ON position, the square red LED in
the switch is illuminated. The switch is guarded to prevent
accidental activation.
Swing Brake Pedal
The swing brake pedal (26) is located on the left side of the
cab floor. The swing brake pedal is used to actuate the swing
brake to slow or stop swing motion. Braking is proportional to
pedal depression. With the pedal not depressed and the
swing brake control valve disengaged, hydraulic pressure is
applied to the brake, overcoming spring pressure and
releasing the brake. Depressing the pedal actuates a swing
power brake valve to apply pressure to the brake assembly.
This pressure aids the spring pressure to overcome the
hydraulic pressure being applied to the brake release circuit
and applies the spring brake according to the pressure from
the swing power brake valve.
Service Brake Foot Pedal
The brake foot pedal (27) is the second pedal from the right
on the cab floor. Depressing the pedal controls the
application of the service brakes.
NOTE:
Published 05-02-2018 Control # 088-10
RT600E OPERATOR MANUAL
The service brake foot pedal must be depressed
before cranking engine.
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