Manitowoc GROVE RT890E Operator's Manual page 37

RT890E
OPERATING CONTROLS AND PROCEDURES
NOTE: The following paragraphs describe all the available
(standard and optional; some machines may not be
equipped with the optional controls shown) controls
and indicators located in the cab. The numbers in
parenthesis () represent the index number from
Cab Controls and Indicators (Refer to Figure 3-1).
NOTE: All rocker switches, except for engine diagnostics
and throttle, contain one or two LED lighted slots in
the switch for illumination. In addition, all but the
outrigger and rear steer switches contain a LED
lighted square to indicate when the switch/function
is activated. The numbers in parenthesis ()
represent the index number from Cab Controls and
Indicators (Refer to Figure 3-2).
CONTROLS AND INDICATORS
Defroster Switch
The DEFROSTER switch (1) is located on the right side of
the front console, above the THROTTLE controls. The
switch is a three-position rocker switch (HIGH, OFF, LOW)
that controls operation of the defroster fan, which is located
on top of the front console.When the switch is in the HIGH or
LOW position, the square amber LED on the switch is
illuminated.
Hand Throttle Control
The (THROTTLE) control (2) is located on the right of the
ignition switch. It controls engine RPM which increases or
decreases proportionately with the direction it is turned. The
engine rpm increases when the hand throttle is turned
c l o c k w i s e ( f a s t ) . W he n t h e h an d t h r o t t l e i s t u r n e d
counterclockwise (slow), the engine rpm decreases. The
hand throttle control knob is electrically connected to the
superstructure control module which sends the signal to the
engine ECM via the J1939 data link.
NOTE: Throttle mode switch must be in the hand mode for
the hand throttle to be activated.
OPERATING CONTROLS AND PROCEDURES
SECTION 3
Ignition Switch
The (IGNITION) switch (3) is located at the bottom of the
front console, to the right of the steering column. The switch
is key-operated and has four positions: ACC [3], OFF [0],
RUN [1], and START [2]. In the OFF position, all electrical
power is off exc ept fo r the ligh ts con trolled by the
HEADLIGHTS switch, boom floodlights, spotlights, turn/
h a z a r d / s t o p l i g h t s , d o m e l i g h t , h o r n , w o r k l i g h t ,
superstructure control module. Positioning the switch to ACC
allows you to start all electrical components except for the
engine ECM wake up and start solenoid. Positioning the
switch to RUN is the same as ACC, except the engine ECM
is now in wake state. With the transmission shifter in neutral
position, positioning the switch to START energizes the start
relay, which in turn energizes the cranking motor solenoid
and cranks the engine for starting. The switch is spring
returned from START to RUN. To shut down the engine,
position the switch to OFF.
Voltmeter
The voltmeter (BATTERY) gauge (4) is located in the center
of the front console to the right of the steering column. The
voltmeter indicates the voltage being supplied to or from the
battery and has a scale of 10 to 16 volts.
Transmission Oil Temperature Gauge
The transmission oil temperature (TRANS TEMP) gauge (5)
is located in the center of the front console to the left of the
steering column. The gauge indicates the transmission oil
temperature on a dual scale calibrated from 60 to 160 °C and
140 to 320 °F. The gauge receives a signal from a
temperature sending unit in the oil line at the torque
converter.
Heat Control Knob
The HEAT control knob (6) is located on the left side of front
console to the left of the steering column. The knob is a
push-pull control that positions a flow diverter valve in the hot
water heater supply line. Pull out on the knob (PULL ON) to
allow hot water to flow through the heater coil and push in on
the knob (PUSH OFF) to shut off the flow of hot water to the
coil.
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