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Komatsu A20637 Shop Manual Download Page 37

10

STRUCTURE, FUNCTION AND 
MAINTENANCE STANDARD

10-1

12

ENGINE MOUNTING  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-4

TIER I ENGINE   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-4

4WD MACHINES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-4
2WD MACHINES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-5

TIER II ENGINE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-6

4WD MACHINES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-6
2WD MACHINE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-7

POWER TRAIN   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-8

4WD MACHINES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-8

DESCRIPTION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-8
POWER FLOW - 4WD  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-9

2WD MACHINES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-10

DESCRIPTION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-10

TRANSMISSION DIAGRAM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-12

4WD MACHINES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-12
2WD MACHINES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-14

TRANSMISSION   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-16

COMPLETE ASSEMBLY   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-16
FORWARD REVERSE CLUTCH  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-26
1ST THROUGH 4TH SPEED SHAFT  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-26
4WD SHAFT  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-27

FRONT AXLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-28

4WD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-28

COMPLETE ASSEMBLY   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-28
DIFFERENTIAL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-28
PLANETARY  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-30

2WD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-31

COMPLETE ASSEMBLY   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-31
CENTER HOUSING  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-32
STEERING KNUCKLE   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-33

REAR AXLE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-34

COMPLETE ASSEMBLY   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-34
DIFFERENTIAL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-35
PLANETARY  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-36
BRAKES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-37
DIFFERENTIAL LOCK  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-38

HYDRAULIC PUMP   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-39

FUNCTION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-44
STRUCTURE   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-44
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10-45

WB140-2N WB150-2N

Summary of Contents for A20637

Page 1: ...is our policy to improve our products whenever it is possible and practical to do so We reserve the right to make changes or improvements at any time without incurring any obligation to install such c...

Page 2: ...0 2N WB150 2N 12 CONTENTS 00 01 GENERAL 01 1 10 STRUCTURE FUNCTION AND MAINTENANCE STANDARD 10 1 20 TESTING ADJUSTING AND TROUBLESHOOTING 20 1 30 DISASSEMBLY AND ASSEMBLY 30 1 90 OTHER 90 1 Find manua...

Page 3: ...13 00 14 00 15 00 16 00 17 00 18 00 19 00 20 00 21 00 22 01 1 01 2 01 3 01 4 01 5 01 6 01 7 01 8 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 10 10 10 11 10 12 10 13 10 14 10 15 10 16 10 17 10 18 Mark...

Page 4: ...4 20 5 20 6 20 7 20 8 20 9 20 10 20 11 20 12 20 13 20 14 20 15 20 16 20 17 20 18 20 19 Mark Page Rev 20 20 20 21 20 22 20 23 20 24 20 25 20 26 20 27 20 28 20 29 20 30 20 31 20 32 20 33 20 34 20 35 20...

Page 5: ...30 50 b 30 51 b 30 52 b 30 53 b 30 54 b 30 55 b 30 56 b Mark Page Rev 30 57 b 30 58 b 30 59 b 30 60 b 30 61 b 30 62 b 30 63 b 30 64 b 30 65 b 30 66 b 30 67 b 30 68 b 30 69 b 30 70 b 30 71 b 30 72 b 30...

Page 6: ...9 b 30 180 b 30 181 b 30 182 b 30 183 b 30 184 b 30 185 b 30 186 b 30 187 b 30 188 b Mark Page Rev 30 189 b 30 190 b 30 191 b 30 192 b 30 193 b 30 194 b 30 195 b 30 196 b 30 197 b 30 198 b 30 199 b 30...

Page 7: ...b 30 302 b 30 303 b 30 304 b 30 305 b 30 306 b 30 307 b 30 308 b 30 309 b 30 310 b 30 311 b 30 312 b 30 313 b 30 314 b 30 315 b 30 316 b 30 317 b 30 318 b 30 319 b 30 320 b Mark Page Rev 30 321 b 30 3...

Page 8: ...0 54 90 55 90 56 90 57 90 58 90 59 90 60 90 61 90 62 90 63 90 64 90 65 90 66 90 67 90 68 90 69 90 70 90 71 90 72 90 73 90 74 90 75 90 76 90 77 Mark Page Rev Mark Page Rev Mark Page Rev Mark Page Rev F...

Page 9: ...ment to the ground If this is not possi ble 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...

Page 10: ...new parts When installing hoses and wires be sure that they will not be damaged by contact with other parts when the machine is being operated 10 When installing high pressure hoses make sure that the...

Page 11: ...ights and fuel coolant and lubricant specification charts STRUCTURE FUNCTION AND MAINTENANCE STANDARD This section explains the structure and function of each component It serves not only to give an u...

Page 12: ...each item 3 Additional pages Additional pages are indicated by a hyphen and numbered after the page number File as in the example Example REVISED EDITION MARK 00 When a manual is revised an edition m...

Page 13: ...with two or more ropes the force subjected to each rope will increase with the hanging angles The table below shows the variation of allowable load kg when hoist ing is made with two ropes each of whi...

Page 14: ...l flows out prepare an oil receiving container CONNECTION 00 1 Hold the hose adapter 1 or hose 5 and insert it in the mating adapter 3 aligning them with each other Do not hold the rubber cap portion...

Page 15: ...ce a of the hexagonal portion at the male end 2 Hold in the condition in Step 1 and turn the lever 4 to the right clockwise 3 Hold in the condition in Steps 1 and 2 and pull out the whole body 2 to di...

Page 16: ...tion at the male end 2 Hold in the condition in Step 1 and push until the cover 3 contacts surface a of the hexagonal portion at the male end 3 Hold in the condition in Steps 1 and 2 and pull out the...

Page 17: ...90 129 9040 250 g Polyethylene container Used as sealant for machined holes Holtz MH 705 790 126 9120 75 g Tube Used as heat resisting sealant for repairing engine Three bond 1735 179 129 9140 2 g Pol...

Page 18: ...ing type Used as sealant for flywheel housing intake manifold oil pan thermostat housing etc Three bond 1211 790 129 9090 100 g Tube Used as heat resisting sealant for repairing engines Molybdenum dis...

Page 19: ...7 34 19 91 25 07 10 17 59 74 43 51 54 57 12 19 98 123 72 28 90 72 14 22 153 190 112 84 140 13 16 24 235 285 173 32 210 20 18 27 320 400 236 02 295 02 20 30 455 565 335 59 416 72 22 32 610 765 449 91 5...

Page 20: ...1 7 50 6 04 22 27 58 9 98 1 44 4 72 4 05 24 32 107 9 166 7 79 6 123 0 06 30 36 147 1 205 9 108 5 151 9 10 33 41 147 1 245 1 108 5 180 8 12 36 46 196 2 294 2 144 7 217 0 14 42 55 245 2 343 2 180 9 253...

Page 21: ...mm mm Range Target 08 08 14 5 88 8 82 4 33 6 50 7 35 5 42 10 10 17 9 8 12 74 7 22 9 39 11 27 8 31 12 12 19 14 7 19 6 10 84 14 45 17 64 13 01 14 14 22 19 6 24 5 14 45 18 07 22 54 16 62 16 16 24 24 5 3...

Page 22: ...nal etc 5 65 0 32 5 23 4 6 37 Charging and signal 15 84 0 45 13 36 7 0 59 Starting Glow plug 40 85 0 80 42 73 11 4 135 Starting 60 127 0 80 63 84 13 6 178 Starting 100 217 0 80 109 1 17 6 230 Starting...

Page 23: ...r in the table so divide by 10 move the decimal one place to the left to convert it to 55 mm B Carry out the same procedure as above to convert 55 mm to 2 165 inches C The original value 550 mm was di...

Page 24: ...3 268 3 307 3 346 3 386 3 425 3 465 3 504 90 3 543 3 583 3 622 3 661 3 701 3 740 3 780 3 819 3 858 3 898 Kilogram to Pound 1 kg 2 2046 lb 0 1 2 3 4 5 6 7 8 9 0 0 2 20 4 41 6 61 8 82 11 02 13 23 15 43...

Page 25: ...8 21 662 21 926 22 190 22 455 22 719 22 983 23 247 23 511 90 23 775 24 040 24 304 24 568 24 832 25 096 25 361 25 625 25 889 26 153 Liter to U K Gallon 1 L 0 21997 U K Gal 0 1 2 3 4 5 6 7 8 9 0 0 0 220...

Page 26: ...1 600 3 607 6 614 8 622 0 629 3 636 5 643 7 90 651 0 658 2 665 4 672 7 679 9 687 1 694 4 701 6 708 8 716 1 100 723 3 730 5 737 8 745 0 752 2 759 5 766 7 773 9 781 2 788 4 110 795 6 802 9 810 1 817 3 8...

Page 27: ...280 1294 1309 1323 1337 1351 1365 1380 1394 1408 100 1422 1437 1451 1465 1479 1493 1508 1522 1536 1550 110 1565 1579 1593 1607 1621 1636 1650 1664 1678 1693 120 1707 1721 1735 1749 1764 1778 1792 1806...

Page 28: ...2 19 66 2 12 2 54 129 2 31 7 89 192 2 26 1 15 5 0 6 7 20 68 0 12 8 55 131 0 32 2 90 194 0 25 6 14 6 8 6 1 21 69 8 13 3 56 132 8 32 8 91 195 8 25 0 13 8 6 5 6 22 71 6 13 9 57 134 6 33 3 92 197 6 24 4 1...

Page 29: ...01 GENERAL 01 1 SPECIFICATIONS 01 2 WEIGHT TABLE 01 5 FUEL COOLANT AND LUBRICANTS 01 6 WB140 2N WB150 2N...

Page 30: ...400 7400 Maximum 8800 8800 Performance Bucket capacity Loader m 1 03 1 03 Backhoe 0 2 0 2 Travel speeds Forward 1st Forward 2nd Forward 3rd Forward 4th Reverse 1st Reverse 2nd Reverse 3rd Reverse 4th...

Page 31: ...ine four cycle water cooled four cylinder direct injection with turbo charger Flywheel horsepower 2000 rpm Maximum torque 1400 rpm Min fuel consumption High idle Low idle kW N m g kWh rpm rpm 64 330 7...

Page 32: ...A60029 and UP Pumps Torque converter Steering Hydraulic L min L min L min Cylinders mm Hydraulic system Work equipment valveType Set pressure Travel control valveType Set pressure Cooling fan motorTy...

Page 33: ...GENERAL WEIGHT TABLE WB140 2N WB150 2N 01 5 12 WEIGHT TABLE This table is a guide for use when transporting or handling components Unit kg Machine Model WB140 2N A20637 and UP WB150 2N A60029 and UP...

Page 34: ...ontact your distributor for advise on the type of oil to be used Reservoir Kind of fluid Ambient Temperature Capacity 30 20 10 0 10 20 30 40 50 C Specified Refill Engine oil pan Oil API CI 4 or JASO S...

Page 35: ...ring normal maintenance Other equipment may be necessary when operating the machine at temperatures below 20 C Consult your Komatsu distribu tor for your specific needs NOTE Use only diesel fuel The e...

Page 36: ...GENERAL FUEL COOLANT AND LUBRICANTS 01 8 WB140 2N WB150 2N 12 MEMORANDA...

Page 37: ...4WD MACHINES 10 12 2WD MACHINES 10 14 TRANSMISSION 10 16 COMPLETE ASSEMBLY 10 16 FORWARD REVERSE CLUTCH 10 26 1ST THROUGH 4TH SPEED SHAFT 10 26 4WD SHAFT 10 27 FRONT AXLE 10 28 4WD 10 28 COMPLETE ASSE...

Page 38: ...F F 10 69 BUCKET SECTION VIEW G G 10 70 BOOM SECTION VIEW H H 10 71 OUTLET SECTION VIEW J J 10 71 TELESCOPIC ARM SECTION VIEW K K 10 72 HAMMER SECTION VIEW L L 10 73 EXCAVATOR CONTROL 10 74 INLET SEC...

Page 39: ...SUPPLY VALVE ST2 10 101 PPC TELESCOPIC ARM 10 102 PPC HAMMER 10 103 PPC ARM AND HAMMER 10 104 LOADER CYLINDERS 10 105 BOOM ARM 10 105 CHARACTERISTICS 10 105 BUCKET 10 106 CHARACTERISTICS 10 106 MP BU...

Page 40: ...STRUCTURE FUNCTION AND MAINTENANCE STANDARD ENGINE MOUNTING 10 4 WB140 2N WB150 2N 1212 ENGINE MOUNTING TIER I ENGINE 4WD MACHINES...

Page 41: ...This as a preview PDF file from best manuals com Download full PDF manual at best manuals com...

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