Komatsu D20A,PL,PLL-7 D21A-7 D20,21P-7A Bulldozer Operator & Maintenance Manual SN 80060 62664 80228 and up – PDF DOWNLOAD

Description

Komatsu D20A,PL,PLL-7 D21A-7 D20,21P-7A Bulldozer Operator & Maintenance Manual

TABLE OF CONTENTS:

Komatsu D20A,PL,PLL-7 D21A-7 D20,21P-7A Bulldozer Operator & Maintenance Manual

MAIN MENU...................................................................................  0
1. FOREWORD.................................................................................  2
2. SAFETY INFORMATION.......................................................................  3
3. INTRODUCTION.............................................................................  4
4. LOCATION OF PLATES, TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR............................  5
5. CONTENTS.................................................................................  6
SAFETY......................................................................................  9
	6. GENERAL PRECAUTIONS ................................................................. 10
	7. PRECAUTIONS DURING OPERATION ........................................................ 16
		7.1 BEFORE STARTING ENGINE ......................................................... 16
		7.2 AFTER STARTING ENGINE........................................................... 18
		7.3 TRANSPORTATION ................................................................. 25
		7.4 BATTERY ........................................................................ 26
		7.5 TOWING ......................................................................... 28
	8. PRECAUTIONS FOR MAINTENANCE ......................................................... 29
		8.1 BEFORE CARRYING OUT MAINTENANCE ................................................ 29
		8.2 DURING MAINTENANCE ............................................................. 34
	9. POSITION FOR ATTACHING SAFETY LABELS ................................................ 41
		9.1 POSITION FOR ATTACHING SAFETY LABELS ........................................... 41
OPERATION................................................................................... 43
	10. GENERAL VIEW........................................................................ 44
		10.1 GENERAL VIEW OF MACHINE........................................................ 44
		10.2 GENERAL VIEW OF CONTROLS AND GAUGES............................................ 45
	11. EXPLANATION OF COMPONENTS........................................................... 47
		11.1 METERS AND LAMPS............................................................... 47
		11.2 SWITCHES....................................................................... 50
		11.3 CONTROL LEVERS AND PEDALS...................................................... 52
		11.4 FUSE BOX ...................................................................... 58
		11.5 MANUAL POCKET ................................................................. 58
	12. OPERATION........................................................................... 59
		12.1 CHECK BEFORE STARTING ENGINE................................................... 59
		12A. OPERATION (ONLY THOSE USING D20A, PL, PLL-7/D20P-7A NEED READ THIS SECTION).... 70
			12A.1.4 OPERATIONS AND CHECKS BEFORE STARTING ENGINE............................ 71
			12A.2 STARTING ENGINE........................................................... 73
			12A.3 OPERATIONS AND CHECKS AFTER STARTING ENGINE............................... 77
			12A.4 MOVING MACHINE OFF ....................................................... 78
			12A.5 STEERING MACHINE.......................................................... 80
			12A.6 STOPPING MACHINE.......................................................... 82
			12A.7 SHIFTING GEAR, SHIFTING BETWEEN FORWARD AND REVERSE ...................... 83
			12A.8 PRECAUTIONS FOR OPERATION ................................................ 85
			12A.9 WORK POSSIBLE USING BULLDOZER ............................................ 86
			12A.10 PARKING MACHINE.......................................................... 87
			12A.11 CHECK AFTER FINISHING WORK .............................................. 88
			12A.12 STOPPING ENGINE ......................................................... 89
			12A.13 CHECK AFTER STOPPING  ENGINE ............................................ 89
			12A.14 LOCKING ................................................................. 90
		12B. OPERATION (ONLY THOSE USING D21A-7/D21P-7A NEED READ THIS SECTION)............. 91
			12B.1.4 OPERATIONS AND CHECKS BEFORE STARTING ENGINE............................ 92
			12B.2 STARTING ENGINE .......................................................... 94
			12B.3 OPERATIONS AND CHECKS AFTER STARTING ENGINE .............................. 97
			12B.4 MOVING MACHINE OFF ....................................................... 98
			12B.5  SHIFTING GEAR ........................................................... 99
			12B.6 SHIFTING BETWEEN FORWARD AND REVERSE......................................100
			12B.7 STEERING MACHINE .........................................................101
			12B.8  STOPPING MACHINE ........................................................104
			12B.9 PRECAUTIONS FOR OPERATION ................................................105
			12B.10 WORK POSSIBLE USING BULLDOZER ...........................................106
			12B.11 PARKING MACHINE .........................................................107
			12B.12 CHECK AFTER FINISHING WORK ..............................................108
			12B.13 STOPPING ENGINE .........................................................109
			12B.14 CHECK AFTER STOPPING ENGINE .............................................109
			12B.15 LOCKING .................................................................110
		12.16 TIPS FOR LONGER UNDERCARRIAGE LIFE (STEEL SHOES ONLY) ........................111
		12.17 HANDLING RUBBER SHOES (RUBBER SHOES ONLY) ....................................114
	13. TRANSPORTATION......................................................................120
		13.1 LOADING, UNLOADING WORK .......................................................120
		13.2 PRECAUTIONS FOR LOADING .......................................................121
		13.3 LIFTING MACHINE................................................................122
		13.4 PRECAUTIONS FOR TRANSPORTATION.................................................125
	14. COLD WEATHER OPERATION..............................................................126
		14.1 PRECAUTIONS FOR LOW TEMPERATURE ...............................................126
		14.2 PRECAUTIONS AFTER COMPLETION OF WORK ..........................................128
		14.3 AFTER COLD WEATHER ............................................................128
	15. LONG-TERM STORAGE...................................................................129
		15.1 BEFORE STORAGE ................................................................129
		15.2 DURING STORAGE ................................................................129
		15.3 AFTER STORAGE .................................................................130
	16. TROUBLESHOOTING ....................................................................131
		16.1 AFTER RUNNING OUT OF FUEL .....................................................131
		16.2 IF BATTERY IS DISCHARGED.......................................................132
		16.3 OTHER TROUBLE .................................................................136
MAINTENANCE.................................................................................139
	17. GUIDES TO MAINTENANCE ..............................................................140
	18. OUTLINES OF SERVICE ................................................................143
		18.1 OUTLINE OF OIL, FUEL, COOLANT .................................................143
		18.2 RELATING TO ELECTRIC SYSTEM ...................................................146
	19. WEAR PARTS LIST ....................................................................147
	20. USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE ...............148
	21. STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS......................................152
		21.1 INTRODUCTION OF NECESSARY TOOLS ...............................................152
		21.2 TORQUE LIST ...................................................................153
	22. PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS ......................................154
	23. MAINTENANCE SCHEDULE CHART .........................................................156
	24. SERVICE PROCEDURE ..................................................................160
		24.1 INITIAL 250 HOURS SERVICE .....................................................160
		24.2 WHEN REQUIRED .................................................................161
		24.3 CHECK BEFORE STARTING .........................................................183
		24.4 EVERY 50 HOURS SERVICE ........................................................191
		24.5 EVERY 250 HOURS SERVICE .......................................................192
		24.6 EVERY 500 HOURS SERVICE .......................................................197
		24.7 EVERY 1000 HOURS SERVICE ......................................................202
		24.8 EVERY 2000 HOURS SERVICE ......................................................210
		24.9 EVERY 4000 HOURS SERVICE ......................................................211
SPECIFICATIONS..............................................................................212
	25. SPECIFICATIONS .....................................................................213
OPTIONS, ATTACHMENTS........................................................................220
	26. GENERAL PRECAUTIONS ................................................................221
		26.1 PRECAUTIONS RELATED TO SAFETY .................................................221
	27. USING SEAT BELT ....................................................................222
		27.1 SEAT BELT (For fixed type).....................................................222
		27.2 SEAT BELT (For suspension type)................................................224
	28. HANDLING SUSPENSION SEAT ...........................................................226

KOMATSU D20A,PL,PLL-7 D21A-7 D20,21P-7A BULLDOZER OPERATOR & MAINTENANCE MANUAL SN 80060 62664 80228 AND UP – PDF DOWNLOAD:

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Komatsu D20A,PL,PLL-7 D21A-7 D20,21P-7A Bulldozer Operator & Maintenance Manual

FOREWORD:

• This manual provides rules and guidelines which will help you use this machine safely and effectively. Keep this manual handy and have all personnel read it periodically. if this manual has been lost or has become dirty and can not be read, request a replacement manual from Komatsu or your Komatsu distributor.
• If you sell the machine, be sure to give this manual to the new owners. Continuing improvements in the design of this machine can lead to changes in detail which may not be reflected in this manual.
• Consult Komatsu or your Komatsu distributor for the latest available information of your machine or for questions regarding information in this manual. This manual may contain attachments and optional equipment that are not available in your area. Consult Komatsu or your Komatsu distributor for those items you may require.

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