Manitowoc GROVE RT890E Operator's Manual page 45

RT890E
controlled valve on the main hoist to direct the flow of
hydraulic oil to the hoist motors. When the switch is in either
the HIGH or LOW position, the amber LED square in the
switch will be illuminated.
Engine and System Diagnostic Connector
(Not Shown)
This connector (52) is provided for troubleshooting and/or
monitoring engine or electrical system faults or conditions. It
is mounted on the side console by the operator's right leg.
NOTE: A laptop computer with appropriate cable and
engine or electrical system software are required.
Luffing Jib Raise/Lower Switch (Optional)
The luffing jib raise/lower switch (53) is located on the left
armrest. It is a three position, momentary switch (LOWER/
OFF/RAISE) that will energize a solenoid to raise or lower
the JIB, if the jib ON/OFF switch is ON.
Luffing Jib On/Off Switch (Optional)
The luffing jib two position on/off switch (54) is located on the
le ft a rmr es t. Wh en in t he O N p os i tion a n d us ed in
conjunction with the luffing jib RAISE/LOWER switch, this
switch will allow operation of the luffing jib. When in the ON
position, the red LED square will illuminate. It has a lock to
prevent accidental activation.
Seat Switch (Not Shown)
This switch (55) is located in the seat. An operator is required
to be sitting in the seat before crane functions can be
activated.
Cab Dome Light
The cab dome light (56) is located on the right rear corner of
the cab roof and provides illumination in the cab. The dome
light is controlled by a switch on the light.
Fire Extinguisher
The fire extinguisher (57) is located on the left side of the cab
behind the operator's seat. The fire extinguisher is a BC
rated dry type fire extinguisher for emergency use.
Boom Lift Control Lever
The boom LIFT control lever (58) is located on the right
armrest. The lever, when positioned forward (lowers the
boom) or back (raises the boom), actuates the control valve
through hydraulic pilot pressure to raise or lower the boom.
12 VDC Accessory Outlet
The 12 Vdc accessory outlet (59) is located in the side of the
pin swing lock control mounting bracket. It provides an outlet
OPERATING CONTROLS AND PROCEDURES
for the operator to plug in a 12 Vdc accessory. It is protected
by a 10 amp circuit breaker with an 8 amp maximum
allowable load
Auxiliary Hoist Control Lever
The auxiliary hoist (AUX) control lever (60) is located on the
left armrest and controls auxiliary hoist functions. The lever,
when positioned forward (lowers the cable) or back (raises
the cable), actuates the control valve through hydraulic pilot
pressure to raise or lower the auxiliary hoist cable.
Horn
The horn button (61) is a push-button type switch located in
the center of the steering wheel. Depressing the horn button
will sound the horn on the cab exterior.
Right Turn Signal Indicator
The right turn signal indicator (62) is located at the center of
the front console on the indicator light alert display. It is a
green arrow light that flashes when the turn signal lever is
pushed up or the HAZARD light switch is positioned to ON.
Left Turn Signal Indicator
The left turn signal indicator (62) is located at the center of
the front console on the indicator light alert display. It is a
green arrow light that flashes when the turn signal lever is
pushed down or the HAZARD light switch is positioned to
ON.
NOTE: See Electrical System Diagnostic Indicator in
Section 15 in the Service Manual - Electrical
System.
Rear Wheels Not Centered Indicator
The REAR WHEELS NOT CENTERED indicator (63) is
located on the right side of the front console on the indicator
light alert display. The indicator is an amber light that will
illuminate any time the rear wheels are not centered.
Hoist 3rd Wrap Indicator (Optional w/CE)
The HOIST 3RD WRAP indicator (64) (optional w/CE) is
located on the lower section of the front console on the
indicator light alert display. The indicator is a red light that will
illuminate when three wraps or less of cable remains on
either hoist. This light is controlled by the LMI System.
Engine Stop Indicator
The ENGINE STOP indicator (65) is located on the upper left
of the console on the indicator light alert display. It illuminates
red when energized by a signal from the engine ECM. In
addition, a warning buzzer will also sound.
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