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Komatsu WB140-2N Shop Manual

Backhoe loader
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Manual
WB140-
WB150
BACKHOE LOADER
SERIAL NUMBERS
ENGINE
This material is proprietary to Komatsu America Corp. and is not to be reproduced, used, or disclosed except in
accordance with written authorization from Komatsu America Corp.
It 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 changes on products
sold previously.
Due to this continuous program of research and development, revisions may be made to this publication. It is
recommended that customers contact their distributor for information on the latest revision.
February 2010
2N
-2N
WB140-2N A20637
WB150-2N A60029
S4D106-1
Copyright 2010 Komatsu
Printed in U.S.A.
Komatsu America Corp.
CEBM012701
and up
and up

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Summary of Contents for Komatsu WB140-2N

  • Page 1 S4D106-1 ENGINE This material is proprietary to Komatsu America Corp. and is not to be reproduced, used, or disclosed except in accordance with written authorization from Komatsu America Corp. It 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 changes on products sold previously.
  • Page 2 OTHER ..............90-1 00-2 WB140-2N WB150-2N Find manuals at https://best-manuals.com...
  • Page 3 10-39 10-67 00-15 10-12 10-40 10-68 00-16 10-13 10-41 10-69 00-17 10-14 10-42 10-70 00-18 10-15 10-43 10-71 00-19 10-16 10-44 10-72 00-20 10-17 10-45 10-73 00-21 10-18 10-46 10-74 00-22 WB140-2N WB150-2N 00-2-1 WB140-2N WB150-2N Find manuals at https://best-manuals.com...
  • Page 4 20-77 10-100 20-12 20-45 20-78 10-101 20-13 20-46 20-79 10-102 20-14 20-47 20-80 10-103 20-15 20-48 20-81 10-104 20-16 20-49 20-82 10-105 20-17 20-50 20-83 10-106 20-18 20-51 20-84 10-107 20-19 20-52 20-85 00-2-2 WB140-2N WB150-2N Find manuals at https://best-manuals.com...
  • Page 5 30-118 ❍ ❍ ❍ ❍ 30-20 30-53 30-86 30-119 ❍ ❍ ❍ ❍ 30-21 30-54 30-87 30-120 ❍ ❍ ❍ ❍ 30-22 30-55 30-88 30-121 ❍ ❍ ❍ ❍ 30-23 30-56 30-89 30-122 WB140-2N WB150-2N 00-2-3 Find manuals at https://best-manuals.com...
  • Page 6 30-250 ❍ ❍ ❍ ❍ 30-152 30-185 30-218 30-251 ❍ ❍ ❍ ❍ 30-153 30-186 30-219 30-252 ❍ ❍ ❍ ❍ 30-154 30-187 30-220 30-253 ❍ ❍ ❍ ❍ 30-155 30-188 30-221 30-254 00-2-4 WB140-2N WB150-2N Find manuals at https://best-manuals.com...
  • Page 7 30-315 90-15 90-48 ❍ ❍ 30-283 30-316 90-16 90-49 ❍ ❍ 30-284 30-317 90-17 90-50 ❍ ❍ 30-285 30-318 90-18 90-51 ❍ ❍ 30-286 30-319 90-19 90-52 ❍ ❍ 30-287 30-320 90-20 90-53 WB140-2N WB150-2N 00-2-5 Find manuals at https://best-manuals.com...
  • Page 8 FOREWORD Mark Page Mark Page Mark Page Mark Page 90-54 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 00-2-6 WB140-2N WB150-2N Find manuals at https://best-manuals.com...
  • Page 9 Smoke Before starting work, remove the leads from the battery. only in the areas provided for smoking. Never smoke ALWAYS remove the lead from the negative (-) termi- while working. nal first. WB140-2N WB150-2N 00-3 Find manuals at https://best-manuals.com...
  • Page 10 15. When jump starting the machine, only use a machine of similar size and voltage. Never use a arc welder or other electrical generating equipment to jump start the machine. Carefully review the safety and procedures for jump starting the machine. 00-4 WB140-2N WB150-2N Find manuals at https://best-manuals.com...
  • Page 11 NOTICE The specifications contained in this shop manual are subject to change at any time and without any advance notice. Contact your distributor for the latest information. WB140-2N WB150-2N 00-5...
  • Page 12 (-) and numbered after the page number. File as drained. in the example. Example: 10-4 10-4-1 Added pages 10-4-2 10-5 REVISED EDITION MARK When a manual is revised, an edition mark (bcd…) is recorded on the bottom outside corner of the pages. 00-6 WB140-2N WB150-2N...

  • Page 13: Hoisting Instructions

    Sling wire ropes from the middle portion of the hook. Slinging near the edge of the hook may cause the rope to slip off the hook during hoisting, and a serious accident WB140-2N WB150-2N 00-7...
  • Page 14 After inserting the hose in the mating adapter, pull it back to check its connecting condition. When the hose is pulled back, the rubber cap portion moves toward the hose about 3.5 mm. This does not indi- cate an abnormality. 00-8 WB140-2N WB150-2N...
  • Page 15 (2) to disconnect it. CONNECTION Hold the mouthpiece of the tightening portion and push body (2) in straight until sliding prevention ring (1) contacts surface a of the hexagonal portion at the male end to connect it. 00-9 WB140-2N WB150-2N...
  • Page 16 (2) to disconnect it. CONNECTION Hold the mouthpiece of the tightening portion and push the body (2) in straight until the slide prevention ring (1) contacts surface a of the hexagonal portion at the male end to connect it. 00-10 WB140-2N WB150-2N...

  • Page 17: Coating Materials

    Used as sealant for flange surfaces and bolts Gasket at high temperature locations; used to pre- sealant LG-3 790-129-9070 1 kg vent seizure. ● Used as sealant for heat resistant gasket for at high temperature locations such as engine pre-combustion chamber, exhaust pipe. 00-11 WB140-2N WB150-2N...
  • Page 18 Used for normal temperature, light load SYG2-400CA-A G2-CA Various Various bearing at places in contact with water or SYG2-160CA Grease steam. SYG2- 160CNCA 400 g (10 per ● SYG2-400M Belows type Used for places with heavy load. case) 00-12 WB140-2N WB150-2N...

  • Page 19: Standard Tightening Torque

    2890 - 3630 2131.55 - 2677.35 Thread diameter of bolt Width across flats lbf ft 5.9 - 9.8 4.35 - 7.22 13.7 - 23.5 10.10 - 17.33 34.3 - 46.1 25.29 - 34.00 74.5 - 90.2 54.94 - 66.52 00-13 WB140-2N WB150-2N...
  • Page 20 36.1 ± 14.4 78.5 ± 19.6 57.8 ± 14.4 137.3 ± 29.4 101.2 ± 21.6 176.5 ± 29.4 130.1 ± 21.6 196.1 ± 49 144.6 ± 36.1 245.2 ± 49 180.8 ± 36.1 294.2 ± 49 216.9 ± 36.1 00-14 WB140-2N WB150-2N...
  • Page 21 177 - 245 {130.5 - 180.7} 216 {159.3} 1 3/16 - 12UN 30.2 (10) 177 - 245 {130.5 - 180.7} 216 {159.3} (12) 197 - 294 {145.3 - 216.8} 245 {180.7} (14) 246 - 343 {181.4 - 252.9} 294 {216.8} 00-15 WB140-2N WB150-2N...
  • Page 22 White & Red & Yellow & Green & Blue & Color — — Green Green Blue Black Black Code — — — — Yellow & Green & Color — — — Red & Blue — White Blue 00-16 WB140-2N WB150-2N...

  • Page 23: Conversion Tables

    2.480 2.520 2.559 2.598 2.638 2.677 2.717 2.756 2.795 2.835 2.874 2.913 2.953 2.992 3.032 3.071 3.110 3.150 3.189 3.228 3.268 3.307 3.346 3.386 3.425 3.465 3.504 3.543 3.583 3.622 3.661 3.701 3.740 3.780 3.819 3.858 3.898 00-17 WB140-2N WB150-2N...
  • Page 24 138.89 141.10 143.30 145.51 147.71 149.91 152.12 154.32 156.53 158.73 160.94 163.14 165.35 167.55 169.76 171.96 174.17 176.37 178.57 180.78 182.98 185.19 187.39 189.60 191.80 194.01 196.21 198.42 200.62 202.83 205.03 207.24 209.44 211.64 213.85 216.05 218.26 00-18 WB140-2N WB150-2N...
  • Page 25 13.858 14.078 14.298 14.518 14.738 14.958 15.178 15.398 15.618 15.838 16.058 16.278 16.498 16.718 16.938 17.158 17.378 17.598 17.818 18.037 18.257 18.477 18.697 18.917 19.137 19.357 19.577 19.797 20.017 20.237 20.457 20.677 20.897 21.117 21.337 21.557 21.777 WB140-2N WB150-2N 00-19...
  • Page 26 1179.0 1186.2 1193.4 1200.7 1207.9 1215.1 1222.4 1129.6 1236.8 1244.1 1251.3 1258.5 1265.8 1273.0 1280.1 1287.5 1294.7 1301.9 1309.2 1316.4 1323.6 1330.9 1338.1 1345.3 1352.63 1359.8 1367.0 1374.3 1381.5 1388.7 1396.0 1403.2 1410.4 1417.7 1424.9 1432.1 1439.4 00-20 WB140-2N WB150-2N...
  • Page 27 3030 3044 3058 3072 3086 3101 3115 3129 3143 3158 3172 3186 3200 3214 3229 3243 3257 3271 3286 3300 3314 3328 3343 3357 3371 3385 3399 3414 3428 3442 3456 3470 3485 3499 3513 3527 3542 WB140-2N WB150-2N 00-21...
  • Page 28 65.6 302.0 -14.4 42.8 105.8 24.4 168.8 68.3 311.0 -13.9 44.6 107.6 25.0 170.6 71.1 320.0 -13.3 46.4 109.4 25.6 172.4 73.9 329.0 -12.8 48.2 111.2 26.1 174.2 76.7 338.0 -12.2 50.0 113.0 26.7 176.0 79.4 347.0 00-22 WB140-2N WB150-2N...
  • Page 29 FUEL COOLANT AND LUBRICANTS ........01-6 WB140-2N WB150-2N...

  • Page 30: Specifications

    GENERAL SPECIFICATIONS SPECIFICATIONS Description Unit WB140-2N - A20637 and UP WB150-2N - A60029 and UP Minimum 7400 7400 Operating weight Maximum 8800 8800 Loader 1.03 1.03 Bucket capacity m³ Backhoe Forward 1st Forward 2nd Forward 3rd Forward 4th Travel speeds...
  • Page 31 GENERAL SPECIFICATIONS Description Unit WB140-2N - A20637 and UP WB150-2N - A60029 and UP Model Komatsu S4D106-1FH diesel en- Komatsu S4D106-1FA diesel en- Type gine four cycle, water cooled, four gine four cycle, water cooled, four cylinder, direct injection with turbo-...
  • Page 32 GENERAL SPECIFICATIONS Description Unit WB140-2N - A20637 and UP WB150-2N - A60029 and UP Torque converter L/min Steering L/min Hydraulic L/min Work equipment valveType Set pressure kg/cm² Travel control valveType Set pressure kg/cm² Cooling fan motorType Link type Simple link...
  • Page 33 GENERAL WEIGHT TABLE WEIGHT TABLE ★ This table is a guide for use when transporting or handling components. Unit : kg WB140-2N WB150-2N Machine Model A20637 and UP A60029 and UP WB140-2N WB150-2N 01-5...

  • Page 34: Fuel Coolant And Lubricants

    It is not our policy to approve fuel, coolant and lubricants or to guarantee performance in service. The responsibility for the quality of the fuel, coolant and lubricant must remain with the supplier. When in doubt, consult your Komatsu distributor. The following table shows specified fuel, coolant and lubricants recom- mended for this machine.
  • Page 35 Specified CapacityTotal amount of oil including oil for components and piping. Refill CapacityAmount of oil needed to refill system during 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.
  • Page 36 GENERAL FUEL COOLANT AND LUBRICANTS MEMORANDA 01-8 WB140-2N WB150-2N...
  • Page 37 OPERATION ............10-45 WB140-2N WB150-2N...
  • Page 38 LIFD CONTROL SYSTEM ..........10-94 10-2 WB140-2N WB150-2N...
  • Page 39 AIR CONDITIONING ........... . 10-119 WB140-2N WB150-2N...

  • Page 40: Engine Mounting

    STRUCTURE, FUNCTION AND MAINTENANCE STANDARD ENGINE MOUNTING 1212 ENGINE MOUNTING TIER ENGINE 4WD MACHINES 10-4 WB140-2N WB150-2N...
  • Page 41 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...

This manual is also suitable for:

Wb150-2nA20637A60029