Operator Alerts - Jacobsen AR-522 Manual

2.4

OPERATOR ALERTS _______________________________________________________

The electronic controller monitors vital machine systems. It
uses an audible alarm and warning lights to alert the
operator of conditions requiring immediate action. When an
alert occurs follow the general guidelines listed in the chart
below, and any specific actions outlined by the grounds
superintendent or service manager.
To test alarm system:
Turn ignition switch to RUN. All lights will come on for one
second or more and the alarm will sound for 5 seconds, then
beep once every three seconds until the engine is started.
This system monitors:
1. Hydraulic fluid level.
2. Engine oil pressure.
3. Engine coolant temperature.
4. Hydraulic oil filter.
5. Battery voltage.
6. Dual activation of brake and traction pedal.
Alert
1. Hydraulic fluid level -
for 5 seconds, then beeps
sounds
once every three seconds
hydraulic fluid warning light comes
on. Hydraulic fluid
recommended level.
2. Engine Oil Pressure -
for 5 seconds, then beeps
sounds
once every three seconds
pressure light comes
pressure low.
3. Engine Coolant
for 5 seconds, then
Alarm sounds
beeps once every three seconds
Engine coolant temperature high.
4. Hydraulic oil filter - Oil filter
warning light remains on after
starting or alarm sounds
seconds, then beeps once every
three seconds and light comes
on .
5. Battery Voltage - Warning light
comes on.
6. Driving with brake on - Alarm
Sounds
alarm
Stop mower immediately, lower implements and shut off engine! Visually
inspect mower for obvious signs of leaks around connections, hoses and
hydraulic components. Return mower to service area for maintenance.
and
CAUTION: Hydraulic fluid is under pressure. Turn engine off and allow
is below fluid to cool before checking fluid level or adding oil to hydraulic tank.
alarm Stop mower immediately, lower implements and shut off engine! 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
and oil
ON. Severe damage to the engine can occur.
ON. Oil
Temperature Stop mower immediately, lower implements and shut off engine! Remove
debris such as leaves and grass clippings that may be restricting air flow through
. rear screen on hood and area between radiator and oil cooler. If engine
continues to run hot, return mower to a service area.
CAUTION: Engine coolant is under pressure. Turn engine off and allow
fluid to cool before checking fluid level or adding coolant to radiator.
Return mower to a service area as soon as possible. Change hydraulic oil
filters.
for 5
Return mower to a service area as soon as possible. Inspect battery and
battery charging system.
Disengage parking brake, or remove foot pressure from either pedal.
Continued operation with both brake and traction pedal depressed will cause
engine to stop in 10 - 60 seconds, depending on the order of pedal application.
CONTROLS
3
2
5
1
4
Action
2
LF004
Figure 2C
GB-9