533 Wheel Feller Buncher and 543 Wheel Feller Buncher Power Train Caterpillar

Illustration 1	g01050867
(1) Sensor Connection. (2) Action Alarm. (3) Action Lamp. (4) Switch Connection. (5) Monitoring System display. (6) Service Tool. (X1) Leads to the data link connector. (X2) Leads to the harness code plug.

The Monitoring System warns the operator of problems in the power train system. The Monitoring System uses the switches and the sensors in the power train system to detect problems. If a problem is detected, action alarm (2) and action lamp (3) alert the operator. The display panel (5) will also display the nature of the alarm.

Alert Indicators

Illustration 2	g00901621
(7) Scroll switch for the display.

Illustration 3	g01050889

(8) Low Engine Oil Pressure

(9) Parking Brake Indicator

(10) Clogged Hydraulic Oil Filter

(11) Electrical System

(12) Hydrostatic Transmission Oil Temperature

(13) Hydraulic Oil Temperature

(14) Low Brake Oil Pressure

(15) Differential Lock

(17) Air Inlet Heater

(18) Low Hydraulic Oil Level

Illustration 4	g00901623

(19) Coolant Temperature Gauge

(20) Action Lamp

(21) Hydraulic Oil Temperature

(22) Hydraulic Oil Pressure (Disc Saw)

The alert indicators are located on the right side of the cab. There are ten alert indicators and a digital display window (16). Switch (7) is used for scrolling through different categories in display window (16) .

Warning Categories

The Monitoring System consists of four warning categories. Each warning category is a different level of severity and each warning category requires different actions by the operator. The first category requires only operator awareness. The second warning category requires an operator response in order to correct the warning condition. The third warning category is considered severe. An immediate change in operating techniques is required. The fourth warning category requires immediate shutdown of the machine systems.

Warning Category 1

A Warning Category 1 requires only operator awareness. When a Warning Category 1 occurs, the monitoring system causes an alert indicator to turn on.

Engine Oil Pressure (8) - The engine oil pressure is low. The alert indicator should flash during start-up. The alert indicator should go out shortly after start-up.

Parking Brake (9) - The parking brake is engaged. The alert indicator should flash during start-up. The alert indicator should go out when the parking brake is released.

Electrical System (11) - There is a malfunction in the electrical system. The system voltage is 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, then 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 correct. Adjust the idle setting to the high side of low idle when the most common electrical loads are turned on. Reducing loads will also help.

If the alert indicator remains on during 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.

Hydrostatic Transmission Oil Temperature (12) - The hydrostatic transmission oil temperature is too high. Change the operating technique in order to prevent damage to the machine.

Hydraulic Oil Temperature (13) - The hydraulic oil temperature is above 87 °C (188 °F). Reduce the load on the system. If the temperature remains high, stop the machine and investigate the cause of the fault.

Low Brake Oil Pressure (14) - The engine start key is in the ON position but the engine is not running.

Differential Lock (15) - The differential lock is engaged.

Air Inlet Heater (17) - The air inlet heater is on. When the indicator turns off, you can start the engine.

Low Hydraulic Oil Level (18) - The hydraulic oil level in the tank is low.

For the brake system, a Warning Category 1 occurs when the parking brake is in the ENGAGED position. This causes parking brake indicator (9) to flash when you start the engine. The alert indicator will turn off when the parking brake is moved to the DISENGAGED position.

Warning Category 2

A Warning Category 2 needs operator response. When a Warning Category 2 occurs, the monitoring system causes one or more indicators to turn on. A Warning Category 2 also causes action light (20) to turn on.

If you have investigated the cause of the problem but the alert indicator and the action lamp continue to flash, do not operate the machine.

Hydraulic Oil Filter (10) - The alert indicator indicates a plugged hydraulic oil filter. Change the hydraulic oil filter. 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.

Hydrostatic Transmission Oil Temperature (12) - The hydrostatic transmission oil temperature is too high. Change the operation of the machine in order to prevent damage to the machine. If the temperature remains high, stop the machine and investigate the cause of the fault.

Hydraulic Oil Temperature (13) - The hydraulic oil temperature is above 90 °C (194 °F). Change the operation of the machine. If the temperature remains high, stop the machine and investigate the cause of the fault.

Low Hydraulic Oil Level (18) - The hydraulic oil level is low. 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.

Coolant Temperature (19) - This gauge indicates excessive coolant temperature. If the gauge needle is in the red area, stop the machine and investigate the cause of the fault.

Hydraulic Oil Pressure (Disc Saw) (22) - The gauge indicates that the hydraulic pressure for the disc saw is greater than 28950 kPa (4200 psi). If the gauge needle is in the red area, reduce the load on the system. If the gauge needle remains in the red area, stop the machine and investigate the cause of the fault.

For the brake system, a Warning Category 2 occurs when the hydraulic oil temperature reaches an excessive level in the hydraulic system. A change in the machine operation is required in order to reduce the excessive temperature.

Note: If the alert indicator and the action light continue to flash, DO NOT operate the machine until the cause of the problem has been fixed.

Warning Category 2-S

The warning category "2-S" includes a constant alarm. Warning category "2-S" includes all warnings in category 2. The warning category "2-S" is a severe condition. The operator should immediately change the operating procedures in order to prevent damage to the machine. When the correct measures have been taken, the alarm will stop. A category "2-S" is logged.

The alert indicator indicates that one of the travel pedals is pressed while the lockout lever for the hydraulic controls is in the LOCKED position.

Warning Category 3

A Warning Category 3 requires immediate shutdown of machine systems. When a Warning Category 3 occurs, the monitoring system causes one or more alert indicators to turn on. The monitoring system also causes action light (20) to flash. The action alarm also sounds.

Engine Oil Pressure (8) - The alert indicator indicates low 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.

Electrical System (11) - The alert indicator 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.

Low Brake Oil Pressure (14) - The warning light indicates low oil pressure to the brakes. If this alert indicator flashes, then stop the machine immediately and engage the parking brake. Stop the engine and investigate the cause of the fault.

Low Hydraulic Oil Level (18) - The hydraulic oil level is low. 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.

For the brake system, a Warning Category 3 occurs when there is a loss of brake oil pressure in the system. This causes low oil pressure indicator (14) for the brake system to turn on. A Warning Category 3 also occurs if the machine is in operation and the parking brake becomes engaged.

When a Warning Category 3 occurs during machine operation, stop the machine immediately and engage the parking brake. Stop the engine. Investigate the cause of the warning before returning the machine to service.

Note: DO NOT operate the machine until the cause of the warning has been corrected.

Reference: For additional information on the Monitoring System, refer to Operation and Maintenance Manual, "Monitoring System" for the machine that is being serviced.