Manitowoc Published 05-03-17, Control # 228-03 3-37
16000 SERVICE/MAINTENANCE MANUAL ELECTRIC SYSTEM
Diagnostic Screen
The diagnostic screen shows a graphic of the hydraulic
circuit and the status of all pumps, motors, valves, and
switches that apply to the crane function selected.
This view-only screen operates on two levels:
Level 1āAn image of the overall crane is shown. Use the
Select buttons to highlight individual crane functions.
Level 2āThe Diagnostic screen for the highlighted crane
function is shown.
The yellow alert symbol is displayed if a system fault occurs.
Go back to the Information screen to identify the fault.
Component Information Icons
See the following topics for the identification and description
of each Diagnostic screen component icon.
Control Handle
System control handle command in percent from
neutral with + raise and ā lower for drums, + right
and ā left for swing, and + forward and ā reverse
for travel.
Variable Closed-Loop Pump
Pump command from neutral (0%) to +/-% full
displacement for drums, swing, and travel.
Gear Pump
Accessory pump or system charge pump.
Variable Closed-Loop Motor
Motor command with 0% maximum displacement
and 100% minimum displacement.
Closed-Loop Variable Motor with Remote
Pilot
Two-speed motor with remote pilot. This motor
type is used for shifting motor speeds
automatically when selected.
System Pressure Sender
Hydraulic pressure (psi/bar).
DIN Electrical Connector
DIN electrical connector changes to yellow when
the selected item is enabled. The yellow short to
ground icon or open circuit icon indicates a circuit fault that
must be serviced immediately.
NOTE: Variable outputs may show a yellow icon all the
time.
Drum Speed
Drum speed in revolutions per minute (RPM).
Drum direction is also shown.
Swing Status
Swing status. Swing right
(shown) or swing left arrow is
yellow when swing is enabled.
Swing speed is shown in revolutions per minute (RPM).
Track Symbol
Travel function. Travel (right shown) is yellow
when the function is operating.
Valve Status
Status of a valve.
Pilot Valve
Status of an external piloted valve.
Disc Brake
Disc brake status, applied or released (shown).
Drum Pawl
Pawl status, engaged or disengaged (shown).
Mast Angle
Mast angle in degrees the mast is positioned
above the transport position.
Mast Raise Status
Command state of the mast raise cylinders.
Cab Tilt Status
Command state of the cab tilt cylinder, cab up/
out or down/in (shown).
Rigging Winch Status
Command state of the rigging winch, haul in or
pay out (shown) the line.