CONTROLS 4
23
4.4
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 5
for instructions to access the
Maintenance mode, and more detailed LDU information.
Press the black button
(V)
to move through the display
list.
Figure 4B
4.4.1 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. Inspect battery and battery
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
.
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.
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 mower down
immediately. Visually inspect mower for
obvious signs of leaks around connections,
hoses, and hydraulic components. Return
mower to service area for maintenance.
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.
!
JACOBSEN
VERSION X.XX
V
CAUTION
Diesel engine coolant is under pressure. Turn engine
off and allow fluid to cool before checking fluid level or
adding coolant to radiator.
CAUTION
Hydraulic fluid is under pressure. Shut mower down
and allow fluid to cool before checking fluid level, or
adding oil to hydraulic tank.
!
!
!
