Warning Lights - Jacobsen R-311 Operation Manual

3.6

WARNING LIGHTS _________________________________________________________

The R-311 mower monitors vital machine systems. It
uses a combination of warning lights and an audible
alarm 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. The engine oil light (T
charge pressure light (T
should go out once engine is started.
Press horn/test switch (I). Horn will sound and Engine
Coolant Temperature (T
T
1
T
9
Alert
T1. Engine Oil Pressure - Alarm
sounds and oil pressure light
comes on. Oil pressure low.
T2. Engine
Temperature Horn sounds.
Engine coolant temperature
high.
T3. Charge Pressure Light stays
on after starting engine or
comes on during operation.
Indicates low charge pressure
in traction system.
T4. Hydraulic Return Oil Filter -
Oil filter warning light comes
on.
) should come on. All lights
3
), Return Filter (T ), Hydraulic
2 4
T T
2 3
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 service area. NEVER operate engine with oil
light on, severe damage to the engine can occur.
Coolant 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 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.
Stop mower immediately, lower implements and shut off engine! Check
hydraulic oil level in main tank. Visually inspect mower for obvious signs of
leaks around connections, hoses and tubes. Tow or trailer mower back to
service area. Never operate mower with charge pressure light on, severe
damage to hydraulic system components can result.
CAUTION: Hydraulic system is under pressure. Turn engine off and
allow oil to cool before checking oil level or adding oil to tank.
Return mower to a service area as soon as possible. Change hydraulic
return oil filter.
Continued on next page
Oil Temperature (T
(T ) lights will come on.
7
With engine off, press glow plug switch (U). Glow plug
light (T ) will come on.
8
Turn signal lights (T
installed.
This system monitors:
T1. Engine oil pressure
) and
1
T2. Engine coolant temperature
T3. Charge pressure
T4. Hydraulic return oil filter
T5. Hydraulic oil temperature
T6. Hydraulic charge filter
T7. Air filter
T8. Glow Plug
T T
4 5
CONTROLS
), Charge Filter (T
5
) are only used with the optional cab
9
T T
6 7
Action
3
), and Air Filter
6
T
8
T
9
Figure 3D
13