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| Illustration 1 | g00894003 |
The Caterpillar Monitoring System consists of gauge display (1) , speedometer/tachometer display (2) , an action alarm, monitoring system display (3) , and action lamp (5) . Individual alert indicators (4) for each machine system are located on the monitoring system display.
The monitoring system is designed to alert the operator of an immediate or an impending problem in one or more of the machine systems.
Warning Operation
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Table 1
| Warning Operation |
| Warning Category |
Warning Indications (1) |
Required Action from the Operator |
Possible Result (2) |
| Alert Indicator Flashes (3) or a Gauge will Show in the Red Range |
Action Lamp Flashes (4) |
The Action Alarm Sounds |
| 1 |
X |
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No immediate action is required. The system needs attention soon. |
No harmful effects or damaging effects will occur. |
| 2 |
X |
X |
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Change machine operation or perform maintenance to the system. |
Damage to machine components will occur. |
| 3 |
X |
X |
X (5) |
Immediately perform a safe engine shutdown. |
Injury to the operator or severe damage to components will occur. |
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| ( 1 ) | The active warning indications are marked with an X. |
| ( 2 ) | If the required action is not carried out then the following results will occur. |
| ( 3 ) | The alert indicator flashes at a 10 Hz rate. |
| ( 4 ) | The action lamp flashes at a 1 Hz rate. |
| ( 5 ) | The action alarm will sound at a 1 Hz rate. |
Warning Categories
The monitoring system provides three warning categories. The first category requires only operator awareness. The second warning category requires the operation of the machine or the maintenance procedure for the machine to be changed. The third warning category requires immediate safe shutdown of the machine.
Warning Category 1
In this category, only the appropriate alert indicators will flash. The alert indicator informs the operator that a machine system needs attention. The condition of the machine system should not endanger the operator. Also, the condition of the machine system should not damage the machine.
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| Illustration 2 | g00894005 |
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| Parking Brake (1) - Indicates the parking brake is engaged and the transmission is in NEUTRAL. The alert indicator should flash during start-up. It should go out when the parking brake is disengaged. |
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| Electrical System (2) - Indicates a malfunction in the electrical system. If this alert indicator flashes, the system voltage is either too high for normal machine operation or the system voltage is too low for normal machine operation. |
If the electrical loads (air conditioning and/or lighting) are high and the engine speed is low, increase the engine speed. This will generate more output from the alternator. If the alert indicator for the electrical system turns off within one minute, the electrical system is operating normally. Overload can occur during periods of low engine speeds.
Revise the operating cycle in order to avoid overloading the electrical system. Overloading the electrical system could result in discharging the batteries.
Low idle must be corrected. Adjust the low idle setting to the high side of low idle when the most common electrical loads are turned on. Reducing loads will also help. Use the medium fan speed instead of the high fan speed.
If this procedure does not cause the alert indicator to turn off, stop the machine and investigate the cause of the fault. The fault may be caused by an alternator belt that is loose or broken. Also, the batteries may be faulty.
If the light remains on near normal operating speeds and with light electrical loads, stop the machine and investigate the cause of the fault. The fault may be caused by an alternator belt that is loose or broken. Also, the batteries or the alternator may be faulty.
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| Maintenance Required (3) - This alert indicator will be on when the machine requires maintenance. The alert indicator can be reset and the maintenance interval can be altered using a laptop computer with Electronic Technician (ET) software. |
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| Air Filter Restriction (4) - Indicates the engine air filters are plugged. If this indicator comes on during operation, service the filters that day. |
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| Air Intake Heater (5) (If Equipped) - Indicates the engine air intake heater is operating. If the light is flashing, the heater is on. |
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| Illustration 3 | g00896050 |
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| Fuel Level Gauge (6) - If the gauge needle enters the red range, this indicates low fuel level (10 percent of the tank capacity). Refuel the tank within the hour in order to avoid running out of fuel. |
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| NOTICE |
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Running out of fuel can cause engine damage. Do not continue to operate the machine when critically low on fuel. |
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Warning Category 2
In this category, one of the following conditions will occur:
- An alert indicator and the action lamp will flash.
- A gauge will show in the red range and the action lamp will flash.
This warns the operator that a change in machine operation is required in order to reduce excessive temperature in one or more of the systems. Move the machine to a convenient place in order to park the machine and stop the engine. Investigate the cause of the alert indicator or the gauge and report the problem immediately.
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| Illustration 4 | g00896055 |
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| Engine Coolant Temperature (7) - Indicates excessive engine coolant temperature. If the gauge needle is in the red range, move the machine to a convenient location to park the machine and stop the engine. Investigate the cause of the fault. Do not operate the machine if the gauge needle remains in the red range and the action lamp continues to flash. |
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| Transmission Oil Temperature (8) - Indicates excessive torque converter/transmission oil temperature. If the gauge needle is in the red range, reduce the load on the machine. If the gauge needle is in the red range and the action lamp continues to flash after approximately five minutes, stop the machine and investigate the cause of the fault. |
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| Hydraulic Oil Temperature (9) - Indicates excessive hydraulic oil temperature. If the gauge needle is in the red range, reduce the load on the system. If the gauge needle remains in the red range and the action lamp continues to flash, stop the machine and investigate the cause of the fault. |
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| Illustration 5 | g00896059 |
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| Axle Oil Temperature/Pressure (10) - Indicates excessive front or rear axle oil temperature. It also indicates that the front or rear axle oil pressure is low. If this alert indicator flashes during operation, downshift the transmission to reduce the load on the braking system. If the alert indicator continues to flash, stop the machine. Stop the engine and investigate the cause of the fault. |
Warning Category 3
In this category, the alert indicator and the action lamp will flash and the action alarm will sound. This category requires immediate safe shutdown of the machine in order to prevent possible injury to the operator and/or severe damage to the system and the machine.
Do not operate the machine until the cause has been corrected.
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| Illustration 6 | g00896096 |
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| Engine Oil Pressure (11) - Indicates low engine oil pressure. If this alert indicator flashes, stop the machine immediately and engage the parking brake. Stop the engine and investigate the cause of the fault. |
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| Parking Brake (12) - Indicates the machine is not in neutral and the parking brake is engaged. If the alert indicator flashes during operation, stop the machine immediately and engage the parking brake. Stop the engine and investigate the cause of the fault. |
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| Brake Accumulator Oil Pressure (13) - Indicates low brake accumulator oil pressure. If the brake accumulator oil pressure further decreases, the parking brake will automatically engage. If this alert indicator flashes, stop the machine immediately and engage the parking brake. Stop the engine and investigate the cause of the fault. |
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| Electrical System (14) - Indicates a serious malfunction in the electrical system. If this alert indicator flashes during operation, stop the machine immediately and engage the parking brake. Stop the engine and investigate the cause of the fault. |
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| Engine Coolant Level (15) - Indicates low engine coolant level. If this alert indicator flashes, stop the machine immediately and engage the parking brake. Stop the engine and investigate the cause of the fault. |
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| Impending Brake Application (IBA) (16) - Indicates that the machine has low transmission oil pressure. If the transmission pressure further decreases the parking brake will automatically engage. If this alert indicator flashes during operation, stop the machine immediately and engage the parking brake. Stop the engine and investigate the cause of the fault. |
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| NOTICE |
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If the Impending Brake Application (IBA) indicator flashes, cease operation. Move the machine to a safe area to engage the parking brake and stop the engine. Inspect and repair the cause of the problem before returning the machine to operation. |
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