Description
Komatsu WB98A-2 Backhoe Loader Shop Manual WEBM002300 – PDF DOWNLOAD
FILE DETAILS:
Komatsu WB98A-2 Backhoe Loader Shop Manual WEBM002300 – PDF DOWNLOAD
Language : English
Pages : 136
Downloadable : Yes
File Type : PDF
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
Komatsu WB98A-2 Backhoe Loader Shop Manual WEBM002300 – PDF DOWNLOAD
SERIAL NUMBER WB98A·2 WB98F20001 and up
GENERAL PRECAUTIONS :
Mistakes in operation are extremely dangerous. Read the OPERATION & MAINTENANCE MANUAL carefully BEFORE operating the machine.
1. Before carrying out any greasing or repairs, read all the precautions given on the decals which are fixed to the machine.
2. When carrying out any operation, always wear safety shoes and helmet. Do not wear loose work clothes, or clothes with buttons missing.
● Always wear safety glasses when hitting parts with a hammer.
● Always wear safety glasses when grinding parts with a grinder, etc.
3. If welding repairs are needed, always have a trained, experienced welder carry out the work. When carrying out welding work, always wear welding gloves, apron, glasses, cap and other clothes suited for welding work.
4. When carrying out any operation with two or more workers, always agree on the operating procedure before starting. Always inform your fellow workers before starting any step of the operation. Before starting work, hang UNDER REPAIR signs on the controls in the operator’s compartment.
5. Keep all tools in good condition and learn the correct way to use them.
6. Decide a place in the repair workshop to keep tools and removed parts. Always keep the tools and parts in their correct places. Always keep the work area clean and make sure that there is no dirt or oil on the floor. Smoke only in the areas provided for smoking. Never smoke while working.
PREPARATIONS FOR WORK:
7. Before adding oil or making repairs, park the machine on hard, level ground, and block the wheels or tracks to prevent the machine from moving.
8. Before starting work, lower blade, ripper, bucket or any other work equipment to the ground. If this is not possible, insert the safety pin or use blocks to prevent the work equipment from falling. In addition, be sure to lock all the control levers and hang warning signs on them.
9. When disassembling or assembling, support the machine with blocks, jacks or stands before starting work.
10. Remove all mud and oil from the steps or other places used to get on and off the machine. Always use the handrails, ladders or steps when getting on or off the machine. Never jump on or off the machine. If it is impossible to use the handrails, ladders or steps, use a stand to provide safe footing.
PRECAUTIONS DURING WORK :
11. When removing the oil filler cap, drain plug or hydraulic pressure measuring plugs, loosen them slowly to prevent the oil from spurting out. Before disconnecting or removing components of the oil, water or air circuits, first remove the pressure completely from the circuit.
12. The water and oil in the circuits are hot when the engine is stopped, so be careful not to get burned. Wait for the oil and water to cool before carrying out any work on the oil or water circuits.
13. Before starting work, remove the leads from the battery. ALWAYS remove the lead from the negative (-) terminal first.
TABLE OF CONTENTS:
Komatsu WB98A-2 Backhoe Loader Shop Manual WEBM002300 – PDF DOWNLOAD
SERIAL NUMBER WB98A·2 WB98F20001 and up
COVER 1
CONTENTS 3
LIST OF REVISED PAGES 5
SAFETY 7
FOREWORD 9
HOW TO READ THE SHOP MANUAL 10
HOISTING INSTRUCTIONS 11
STANDARD TIGHTENING TORQUE 12
COATING MATERIALS 14
ELECTRIC WIRE CODE 15
WEIGHT TABLE 16
TABLE OF OIL AND COOLANT QUANTITIES 17
10 STRUCTURE AND FUNCTION 21
P T O 22
POWER TRAIN 23
TRANSMISSION 24
AXLE 25
BRAKE 29
HYDROSTATIC TRANSMISSION 30
INCHING VALVE 32
TRAVEL MOTOR 33
STEERING SYSTEM 38
STEERING SYSTEM PUMP 39
STEERING UNIT 40
PRIORITY VALVE 41
FRAMES KNUCKLE AND JOINT 42
HYDRAULIC CIRCUIT DIAGRAM 43
3-SPOOL CONTROL VALVE 45
6-SPOOL CONTROL VALVE 47
7-SPOOL CONTROL VALVE 49
8-SPOOL CONTROL VALVE 50
OUTRIGGER SAFETY VALVES 52
BRAKE PUMP 53
FRONT EQUIPMENT CYLINDER 54
FRONT WORK EQUIPMENT 56
LOADER CONTROL LEVER 57
BACKHOE CYLINDER 58
BACKHOE WORK EQUIPMENT 62
BACKHOE CONTROL LEVER 63
SOLENOID VALVE 64
ELECTRICAL DIAGRAM 67
20 TESTING AND ADJUSTING 91
NORMAL OR STANDARD TECHICAL DATA 92
40 MAINTENANCE STANDARD 107
P T O 109
TRANSMISSION 110
AXLES 111
TRAVEL MOTOR 116
STEERING PUMP 118
3-SPOOL CONTROL VALVE 119
6-SPOOL CONTROL VALVE 120
OUTRIGGER SAFETY VALVES 121
STEERING AND FRONT WORK EQUIPMENT CYLINDERS 122
BACKHOE CYLINDERS 124
FRAME KNUCKLE AND JOINT 128
BACKHOE FRAME 129
FRONT WORK EQUIPMENT 130
BACKFRAME AND BRACKET 132
BACKHOE WORK EQUIPMENT 134
S.V 18/12/24
