Ldu; Lcd Display Unit (Ldu); Indicator Lights - Jacobsen LF570 Parts & Maintenance Manual

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LDU

3.1

LCD DISPLAY UNIT (LDU) ___________________________________________________

The LDU displays current functional values for the
operation of the mower, has indicator lights, and sounds
audible warning alerts. The LDU operates in one of two
modes, Operator Mode (Default) and Maintenance Mode.
Use of Maintenance Mode requires a four digit pin
number. Refer to Section 3.1.5 for instructions to access
the Maintenance mode, and more detailed LDU
information.
Press the black button (V) to move through the display
list.
JACOBSEN
VERSION X.XX

3.1.1 Indicator Lights __________________

The LDU has eight indicator lights to indicate system
functions.
Battery Light: Red battery light located on
left side of the LDU indicates the engine
alternator is not producing proper voltage.
Return unit to service area as soon as
possible.
charging system.
Glow Plug Light: Yellow glow plug light
located on left side of the LDU indicates the
diesel engine glow plugs are energized.
Engine Oil Pressure Light: Red engine oil
pressure light located on left side of the
LDU indicates low engine oil pressure. Shut
down unit immediately. Inspect oil level in
engine. If oil light remains On with oil at
proper level, shut off engine and tow or trailer
mower back to a service area. NEVER
operate engine with oil light On, severe
damage to the engine can occur
!
V
Figure 3A
Inspect battery and
.
Diesel engine coolant is under pressure. Turn engine
off and allow fluid to cool before checking fluid level or
adding coolant to radiator.
Hydraulic fluid is under pressure. Shut mower down
and allow fluid to cool before checking fluid level, or
adding oil to hydraulic tank.
battery
!
Coolant Temperature Light: Red coolant
temperature light located on left side of the
LDU indicates an coolant temperature
above 230° F (110° C). Shut down unit
immediately. Remove debris such as leaves
and grass clippings that may be restricting
air flow through rear screen and radiator. If
engine continues to run hot, return mower
to a service area.
!
CAUTION
Parking Brake Light: Red parking brake
light located on right side of the LDU
indicates the parking brake switch is
engaged. Light will flash when automatic
parking brake is engaged.
Hydraulic Oil Level Light: Red hydraulic
oil level light located on right side of the
LDU indicates a low fluid level in the
hydraulic tank. Shut
immediately. Visually inspect mower for
obvious signs of leaks around connections,
hoses, and hydraulic components. Return
mower to service area for maintenance.
!
CAUTION
Hydraulic Oil Filter Light: Yellow oil filter
light located on right side of the LDU
indicates the hydraulic filters need to be
replaced. Return mower to service area as
soon as possible and replace filters.
Fault Light: Yellow fault light located on
right side of the LDU indicates the
controller system has detected a fault. See
fault message displayed on LCD.
LDU 3
mower down
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