Manitowoc Grove GRT880, Operator'S Manual

Page: 69 / 202

Grove
Published 3-25-2020, Control # 643-04
3-5
GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
3
Skylight Wiper and Wiper Motor
The Skylight Wiper (2) (Figure 3-3) is controlled by the
Skylight Wiper Switch, (4) (Figure 3-4), and operated by the
Wiper Motor.
Skylight Sunscreen
The Skylight Sunscreen (3) (Figure 3-3) reduces direct
sunlight. The sunscreen is self retracting and can be set to
screen all light or adjusted rearward by moving it to notches
provided.
Dome Light
The cab Dome Light (4) (Figure 3-3) is on the right rear
corner of the cab overhead console and provides illumination
in the cab. The dome light is controlled by a switch on the
light.
Cab Circulating Fan
The Cab Circulating Fan (5) (Figure 3-3) is located on left
front side of cab above the window frame. A swivel allows
the fan to be rotated and a switch on the fan base controls
the fan. The switch has a high, low and off position.
Right Side Window Latch
Window on the right side of the cab can be opened. Squeeze
latch (6) (Figure 3-3) to release and slide forward. To close,
slide window rearward until latch engages.
Overhead Control Panel
Skylight Wiper Switch
The electrically-operated Skylight Wiper is installed to
remove moisture from the skylight. The Skylight Wiper is
controlled by the Skylight Wiper Switch (1) Figure 3-4. This
switch has 6 positions, including intermittent setting.
Heater/Air Conditioner Fan Speed Switch
The Heater/Air Conditioner Fan Speed Switch (2) Figure 3-4
controls cab fan speed and volume of heated or cooled air
output. Settings are off, low speed, medium speed, and high
speed.
Heater Control Switch
The Heater Control Switch (3) Figure 3-4 controls heating
temperature. Turn switch right (clockwise) to open valve for
heat. (Heat comes from heated fluid going through the
heater coil.) Turn switch left (counterclockwise) to close the
valve, reduce fluid flow, and minimize heat.
Air Conditioner Switch
The Air Conditioning Switch (4) Figure 3-4 controls the
optional air conditioning system. Settings are Off (O) and On
(I).
Work Lights Switch
The Work Lights Switch (5) Figure 3-4 controls work lights
mounted on bottom front of the superstructure cab. Press top
of switch to turn work lights on. Press bottom of switch to turn
work lights off.
Crane Function Power Switch
The Crane Function Power Switch (7) Figure 3-4 is located
on the overhead control panel. This spring return switch
permits the operator to activate all crane functions at once or
disconnect power from crane functions controlled by the
remote controllers on the armrests. Pressing it turns ON all
crane functions. Pressing a second time turns OFF all crane
functions. Turn off all crane functions to prevent inadvertent
operation of functions due to bumping controllers while
roading or any other operation.
Exhaust System Cleaning Switch
(Tier 4 Engine Only)
Item Description
1 Skylight Wiper Switch
2 Heater/Air Conditioner Fan Speed Switch
3 Heater Control Switch
4 Air Conditioning Switch
5 Work Lights Switch
6 Flood Lights Switch (Optional)
7 Crane Function Power Switch
8
Exhaust System Cleaning Switch
(Tier 4 engine only)
8446
FIGURE 3-4
6
4
5 1
2
3
7 8
WARNING
Extreme Heat Hazard!
During cleaning process exhaust becomes very hot. Do
not park vehicle near flammable objects.
Use caution near the exhaust tailpipe as it will also
become very hot.