KOMATSU HD785-3 DUNP TRUCK SHOP MANUAL SN20001 & Up – PDF DOWNLOAD

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KOMATSU HD785-3 DUNP TRUCK (PAYLOAD METER – BULT – IN MICRO COMPUTER) SHOP MANUAL SN20001 & Up – PDF DOWNLOAD

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KOMATSU HD785-3 DUNP TRUCK (PAYLOAD METER – BULT – IN MICRO COMPUTER) SHOP MANUAL SN20001 & Up – PDF DOWNLOAD

Language : English
Pages : 105
Downloadable : Yes
File Type : PDF

IMAGES PREVIEW OF THE MANUAL:

TABLE OF CONTENTS:

KOMATSU HD785-3 DUNP TRUCK (PAYLOAD METER – BULT – IN MICRO COMPUTER) SHOP MANUAL SN20001 & Up – PDF DOWNLOAD

COVER.....................................................................................................................................................................  1
CONTENTS..................................................................................................................................................................  2
OPERATION.................................................................................................................................................................  3
	1. INTRODUCTION.......................................................................................................................................................  4
	2. GENERAL LOCATIONS..................................................................................................................................................  5
	3. CONTENT OF DISPLAY (CONTROLLER,EXTERNAL DISPLAY LAMPS).............................................................................................................  8
	4. EXTERNAL DISPLAY LAMPS............................................................................................................................................. 12
	5. DETAILS OF DATA STORED IN MEMORY OF PAYLOAD METER.................................................................................................................. 14
	6. OPERATION OF SWITCHES.............................................................................................................................................. 19
		6.1 CARRYING OUT CALIBRATION...................................................................................................................................... 20
		6.2 FORCED DISPLAY OF TOTAL PAYLOAD AND OVERALL NUMBER OF CYCLES FORCED DISPLAY OF ABNORMALITIES,WARNINGS WHEN THEY HAVE OCCURRED................................. 21
		6.3 OPERATOR CHECK MODE........................................................................................................................................... 25
		6.4 DIMMING LIGHTS ON MONITOR DISPLAY............................................................................................................................. 39
		6.5 ADJUSTING BUZZER SOUND LEVEL.................................................................................................................................. 39
	7. ABNORMALITY AND WARNING DISPLAY (ERROR CODE)....................................................................................................................... 40
	8. WHEN F-09 IS DISPLAYED FOR THE ERROR CODE (PROCEDURE FOR REPLACING BATTERY)........................................................................................ 48
	9. OPERATION IF F-CAL IS DISPLAYED AS AN ERROR CODE OR THE CONTROLLER IS REPLACED..................................................................................... 51
STRUCTURE AND FUNCTION.................................................................................................................................................... 52
	STRUCTURE OF SYSTEM................................................................................................................................................... 53
	ELECTRICAL WIRING DIAGRAM............................................................................................................................................. 54
	PRINCIPLE OF CALCULATION.............................................................................................................................................. 55
	FEATURES OF EQUIPMENT................................................................................................................................................. 57
TROUBLESHOOTING........................................................................................................................................................... 69
	PRECAUTIONS WHEN CARRYING OUT MAINTENANCE............................................................................................................................. 70
	CONNECTION TABLE FOR CONNECTOR PINS................................................................................................................................... 75
	TROUBLESHOOTING FOR PAYLOAD METER SYSTEM.............................................................................................................................. 81
		L-1. DISPLAY DOES NOT APPEAR WHEN STARTING SWITCH IS TURNED ON.................................................................................................... 82
		L-2. NO EXTERNAL DISPLAY LAMPS LIGHT UP AFTER STARTING SWITCH IS TURNED ON........................................................................................ 83
		L-3. LIGHTING UP OF EXTERNAL DISPLAY LAMPS DOES NOT MATCH CONDITIONS FOR LIGHTING UP.............................................................................. 84
		L-4. LIGHTING UP LEVEL OF EXTERNAL DISPLAY LAMPS IS NOT CORRECT................................................................................................... 85
		L-5. CYCLE DATA IS NOT RECORDED,ENGINE DATA IS NOT RECORDED....................................................................................................... 86
		L-6. CALIBRATION CANNOT BE CARRIED OUT,TIME DISPLAY IS GIVEN WITHOUT FULFILLING CONDITIONS........................................................................ 87
		L-7. ABNORMALITY IN DISPLAY LOGIC................................................................................................................................. 88
			a) AFTER LOADING,0 DISPLAY REMAINS EVEN WHEN STARTING TO DRIVE LOADED MACHINE................................................................................. 88
			b) AFTER STARTING TO DRIVE LOADED MACHINE,VALUE ON TRAVEL DISTANCE DISPLAY DOES NOT INCREASE.................................................................. 88
			c) TRAVEL SPEED IS ABOVE SPEED LIMIT BUT SP:SP DISPLAY IS NOT GIVEN........................................................................................... 88
			d) TOTAL PAYLOAD DISPLAY IS NOT GIVEN......................................................................................................................... 88
		L-8. B-FL DISPLAY REMAINS AND DOES NOT CHANGE..................................................................................................................... 89
		L-9. F-09 IS DISPLAYED:DROP IN VOLTAGE OF BACKUP BATTERY BUILT INTO PAYLOAD METER................................................................................. 90
		L-10. [ ] FULL DISPLAY IS GIVEN................................................................................................................................... 90
			・ L.FUL:CYCLE OPERATED........................................................................................................................................ 90
			・ E.FUL:ENGINE ON/OFF COUNT................................................................................................................................... 90
			・ F.FUL:ABNORMALITY,WARNING................................................................................................................................... 90
			・ H.FUL:TOTAL PAYLOAD,OVERALL NUMBER OF CYCLES................................................................................................................ 90
		L-11. F-20 IS DISPLAYED........................................................................................................................................... 91
		L-12. F-21-24 IS DISPLAYED:DISCONNECTION,SHORT CIRCUIT WITH GROUND IN SUSPENSION PRESSURE SENSOR SYSTEM........................................................... 92
		L-13. F-25-28 IS DISPLAYED:SHORT CIRCUIT IN POWER SOURCE FOR SUSPENSION PRESSURE SENSOR SYSTEM.................................................................... 94
		L-14. F-CAL IS DISPLAYED:CALIBRATION NOT CARRIED OUT,DATA INSIDE PAYLOAD METER DAMAGED............................................................................ 95
		L-15. F-41-45 IS DISPLAYED:SHORT CIRCUIT IN POWER SOURCE FOR EXTERNAL DISPLAY LAMP RELAY.......................................................................... 96
		L-16. L-BAD IS DISPLAYED:CYCLE DATA RECORDED WHEN MACHINE WAS ROCKING ............................................................................................ 97
		L-17. MACHINE IS NOT BEING LOADED,BUT EXTERNAL DISPLAY LAMP GIVES ESTIMATE DISPLAY AFTER LOADING,DISPLAY CHANGES TO TIME DISPLAY BEFORE MACHINE TRAVELS 160 M..... 98
		L-18. F-31 IS DISPLAYED:SHORT CIRCUIT,DISCONNECTION IN CLINOMETER SYSTEM.......................................................................................... 99
		L-19. F-32 IS DISPLAYED:SHORT CIRCUIT WITH POWER SOURCE FOR CLINOMETER SYSTEM.....................................................................................100
PARTS LIST................................................................................................................................................................101
	PAYLOAD METER (OP)....................................................................................................................................................102

DESCRIPTION:

KOMATSU HD785-3 DUNP TRUCK (PAYLOAD METER – BULT – IN MICRO COMPUTER) SHOP MANUAL SN20001 & Up – PDF DOWNLOAD

• The signals from the pressure sensors, clinometer (not installed on -60°C specification machine), load float detection, and neutral detection are input to the payload meter. These signals are processed by the built-in microcomputer, the payload is calculated and displayed on the panel. At the same time, the external display lamps show the loading condition.
• The payload meter always carries out self-diagnosis of this system, and if any abnormality or warning is generated, it displays the details.
• Using the control switches on the payload meter, it is possible to display various data, such as the total payload from a certain time, the overall number of cycles, or the abnormalities and warnings that are now being generated or have occurred and have already been erased.
• The payload meter automatically stores in memory various operating data for the dump truck such as the payload, time, distance, travel speed for each cycle, the date and time that the engine was started and stopped, the date and time of abnormalities or warnings that occurred or were canceled, and the total payload and the overall number of cycles from a certain time.
• These automatically recorded data are retained even when the power is switched off, so if a personal computer is connected to the payload meter through the connection port for the communications cable inside the cab, it is possible to send (download) the data later to a personal computer using cable communication (ANSI/EIA RS-232C). In addition, based on these data, it is possible to display the operation data on the screen of the computer, to print out the data, or to convert the data for use with Lotus 1-2-3.
• It is also possible to set a memory card in the payload meter and to write the various data to the memory card. This memory card can then be used to load the data into a personal computer and to carry out the same data processing that is available using cable communications.
• To download the data, read the data from the memory card to the personal computer and, carry out the data processing, it is necessary to use the personal computer software provided by Komatsu.
• It is possible to set the machine ID, open ID, and speed limit for each payload meter (that is, each machine).

S.S 12/12/24