Ldu - Jacobsen LF550-H-T4F Safety, Operation And Maintenance Manual

6.3

LDU _____________________________________________________________________

The LCD Display Unit (LDU) shows the current values for
the operation of the mower, has indicator lights and
sounds audible warnings. The LDU operates in one of
two modes, Operator Mode (Normal Operation) and
Maintenance Mode. The use of Maintenance Mode
needs a four digit pin number. See Section 9.2 for
instructions to access the Maintenance mode and
additional LDU information..
Press the LDU button to move through the display list in
Operator Mode.
6.3.1 LDU INDICATOR LIGHTS ___________________________________________________
The LDU indicator lights supply the following information:
The red battery light indicates that the alternator output is not the correct voltage. Return the mower to the
service area. Inspect the battery and the alternator.
The yellow glow plug light indicates the glow plugs are active. Do not turn the ignition switch to the start
position until the glow plug light turns off.
The red coolant-temperature light indicates that coolant temperature is more than 230° F (110° C).
Immediately stop the engine. Remove the tree leaves, grass clippings and other objects that can decrease
air flow through the rear screen and the radiator. If the engine continues to run hot, return mower to the
service area.
The engine coolant is under pressure. To prevent injury, do not remove the radiator cap on a hot radiator.
The red engine oil-pressure light indicates engine oil pressure is less than 7 psi (0.48 BAR). Immediately
stop the engine and inspect the oil level in the engine. If the oil-pressure light stays illuminated with the oil at
the correct level, stop the engine and tow the mower to the service area. NEVER operate the engine with the
oil-pressure light illuminated or engine damage can occur.
The yellow check engine light indicates that the engine controller sensed a problem. Connect a CAN
diagnosis tool or the Kubota Diagmaster tool to identify problem. When the check engine light is illuminated,
the DPF Regen cycle will not start.
The red parking brake light indicates that the parking brake switch is in the ON position. Do not press the
traction pedal with light illuminated.
!
WARNING
CONTROLS 6
JACOBSEN
LDU-A MCU-A
LDU Button
!
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