EXPLANATION OF COMPONENTS

The following is an explanation of the devices needed for operating the machine.

To carry out suitable operations correctly and safely, it is important to understand fully the methods of operating the equipment and the meanings of the displays.

Machine Monitor

A: Basic check ItemsD: Meter Display Portion

B: Caution ItemsE: Monitor Switches

C: Emergency Stop Items

A. Basic check items (See Basic Check Monitors (PAGE 3-7))

This displays the basic items among the check before starting items that should be checked before starting the engine.

If there is any abnormality, the monitor showing the location of the abnormality will flash.

NOTICE

When carrying out the check before starting, do not rely only on these monitors. Always carry out the inspection items according to the Maintenance section or Section “MACHINE OPERATIONS AND CONTROLS (PAGE 3-103)”.

B. Caution items (See Caution Monitors (PAGE 3-9))

CAUTION

If these monitor items flash, check and repair the appropriate location as soon as possible.

These are items which need to be observed while the engine is running. If any abnormality occurs, items which need to be repaired as soon as possible are displayed. If there is any abnormality, the appropriate monitor lamp will flash to indicate the location of the abnormality.

C. Emergency stop items (See Emergency Monitors (PAGE 3-11))

CAUTION

If the monitor for any of these items flashes, stop the engine immediately or run it at low idling, and take the following action.

This displays those of the abnormality items for which action must be taken immediately when the engine is running.

If there is any abnormality, the monitor showing the location of the abnormality will flash and the alarm buzzer will sound.

D. Meter Display Portion (See Meter Display Portion (PAGE 3-13))

This portion consists of pre-heating monitor, swing lock monitor, engine water temperature gauge, fuel gauge, service meter and display.

E. Monitor switches (See Monitor Switches (PAGE 3-17))

This select working mode, travel speed and time setting of clock.

Basic Check Items

Warning

These monitors are not a guarantee of the condition of the machine. Do not simply rely on the monitors when carrying out checks before starting (daily checks). Always get off the machine and check each item directly.

This displays the basic items among the check before starting items that must be checked before starting the engine. If there is any abnormality, the monitor for the location of the abnormality will flash.

Engine Oil Level Monitor

This monitor A (1) warns the operator if the oil level in the engine oil pan has dropped.

If the oil level in the engine oil pan is low, the monitor will flash, so check the oil level in the engine oil pan and add oil.

Engine Oil Level Monitor

This warns monitor A (2) that the oil level in the engine oil pan is too low.

If the monitor lamp flashes, check the oil level in the engine oil pan, and add oil.

Hydraulic Oil Level Monitor

This warns monitor A (3) that the hydraulic oil level is too low. If the monitor lamp flashes, check the hydraulic oil level, and add oil.

If you want to change the set time for replacement of oil, please consult your Komatsu distributor.

Caution Items

Caution

If the warning monitor flashes or lights up, carry out inspection and maintenance of the appropriate point as soon as possible. If the problem is not corrected, it may lead to failure of the machine.

These are items which need to be observed when the engine is running. If any abnormality occurs, the item needing immediate repair is displayed. If there is any abnormality, the abnormal location on the monitor will flash or light up.

Charge Level Monitor

This monitor B (1) warns an abnormality in the charging system while the engine is running. This monitor indicates an abnormality in the charging system while the engine is running. While the starting switch is ON, the lamp will remain lit and will go off once the engine is started.

Remark

Immediately after the engine is started, the R lamp of charge level monitor (1) lights up after a short delay, but this does not indicate any abnormality.

Fuel Level Monitor

This monitor B (2) warns the amount of fuel in the fuel tank. If the fuel drops below 169 liters, the lamp will flash. Add the fuel before this.

Air Cleaner Clogging Monitor

This monitor B (3) warns that the air cleaner is clogged. If the monitor lamp flashes, stop the engine, then inspect and clean the air cleaner.

Hydraulic Filter Clogging Monitor

This monitor B (4) indicates clogging of the hydraulic filter. If the monitor lamp flashes, stop the engine and check, clean the filter element.

Emergency Stop Items

Caution

If the monitor flashes, stop the engine immediately or run at low idling, then inspect the problem point immediately and repair the problem.

These are items which need to be observed when the engine is running. If there is any abnormality, the abnormal location on the monitor will flash and the buzzer will sound. Carry out the necessary repairs immediately.

ENGINE WATER TEMPERATURE, HYDRAULIC OIL TEMPERATURE MONITOR

This monitor C (1) warns the operator that the engine water temperature or hydraulic oil temperature has risen. If the temperature becomes abnormally high, the monitor flashes.

● If the front engine cooling water temperature is abnormally high:

The overheat prevention system is automatically actuated and the engine speed goes down.

Monitor Lamp (A) of the display selector switch flashes and the cooling water temperature of the front engine is displayed on the engine cooling water and oil temperature gauge.

● If the rear engine cooling water temperature is abnormally high:

The overheat prevention system is automatically actuated and the engine speed goes down.

Monitor Lamp (B) of the display selector switch flashes and the cooling water temperature of the rear engine is displayed on the engine cooling water and oil temperature gauge.

● If the hydraulic oil temperature is abnormally high: Monitor Lamp (C) of the display selector switch flashes and the hydraulic oil temperature is displayed on the engine cooling water and oil temperature gauge.

Radiator Coolant Level Monitor

This monitor C (2) warns that the radiator cooling water level is too low.

If the monitor lamp flashes, check the cooling water level in the radiator and sub-tank, and add water.

Engine Oil Pressure Monitor

This monitor C (3) flashes if the engine lubricating oil pressure goes below the normal value. If it flashes, stop the engine and check the lubricating system and the level of the oil in the oil pan.

Remark

● While the starting switch is ON, the lamp remains lit and goes off once the engine is started. When the engine starts, the buzzer may sound for a short time, however, this does not indicate a fault.

● Stop the machine on level ground and check the monitor.

● Stop the engine, then turn the starting switch to the ON position and check that the monitor lights up for 3 seconds. If it does not light up, please contact your Komatsu distributor to have the monitor inspected.