Komatsu WB140PS-2 WB150PS-2 Power Shift Backhoe Loader Trannsmission Model TLB2 4WD 4WS/2WS PS Service Manual

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This is the COMPLETE Official Service Repair Manual for the Komatsu Backhoe Loader.
This manual contains deep information about maintaining, assembly, disassembly and servicing your Komatsu. 

This PDF file is Bookmarked and SEARCHABLE to make what you need easy to find. 

Models And Serials :

SERIAL NUMBERS WB140PS-2 140F50001 – F50091
WB150PS-2 150F50001 – F50019

CONTENTS : 

GENERAL INFORMATION . . . . . . . . . . . . 1
Manual use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Agreements and definitions . . . . . . . . . . . . . . . . . . . 4
General description . . . . . . . . . . . . . . . . . . . . . . . . . 7
General recommendations for disassembly
and assembly operations . . . . . . . . . . . . . . . . . . . . . 8
SAFETY INSTRUCTIONS. . . . . . . . . . . . 10
General safety recommendations . . . . . . . . . . . . . 11
Safety symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
General precautions. . . . . . . . . . . . . . . . . . . . . . . . 13
GENERAL SPECIFICATIONS. . . . . . . . . 15
Foreseen uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Product identification . . . . . . . . . . . . . . . . . . . . . . . 17
Technical features . . . . . . . . . . . . . . . . . . . . . . . . . 18
Sealing compounds and adhesives . . . . . . . . . . . . 22
Main points nomenclature . . . . . . . . . . . . . . . . . . . 26
Filling and checks. . . . . . . . . . . . . . . . . . . . . . . . . . 30
Service schedule . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Lubrication / greasing:
grades and application range. . . . . . . . . . . . . . . . . 34
Tightening torques . . . . . . . . . . . . . . . . . . . . . . . . . 35
Hydraulic components . . . . . . . . . . . . . . . . . . . . . . 38
Torque converter . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Oil pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Electronic gear management . . . . . . . . . . . . . . . . . 46
Electric connections . . . . . . . . . . . . . . . . . . . . . . . . 58
Kinematic scheme . . . . . . . . . . . . . . . . . . . . . . . . . 60
Power flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
DISASSEMBLY AND ASSEMBLY
OPERATIONS . . . . . . . . . . . . . . . . . . . . . 66
Converter 2WS/4WS . . . . . . . . . . . . . . . . . . . . . . . 67
Plugs and filters 2WS/4WS . . . . . . . . . . . . . . . . . . 71
Oil pump 2WS/4WS . . . . . . . . . . . . . . . . . . . . . . . . 75
Pipes and sensors 2WS/4WS . . . . . . . . . . . . . . . . 78
Hydraulic control valve 2WS/4WS . . . . . . . . . . . . . 89
Transmission housing 4WS . . . . . . . . . . . . . . . . . . 93
Transmission housing 2WS . . . . . . . . . . . . . . . . . 108
Shaft A - D 2WS/4WS . . . . . . . . . . . . . . . . . . . . . 124
Shaft B 2WS/4WS . . . . . . . . . . . . . . . . . . . . . . . . 142
Shaft C 2WS/4WS . . . . . . . . . . . . . . . . . . . . . . . . 153
Shaft E 2WS/4WS . . . . . . . . . . . . . . . . . . . . . . . . 174
TROUBLESHOOTING. . . . . . . . . . . . . . 184
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Troubleshooting of transmission . . . . . . . . . . . . . 190
Checking and inspection of the
eletronic control unit . . . . . . . . . . . . . . . . . . . . . . . 193
Numerical error . . . . . . . . . . . . . . . . . . . . . . . . . . 197
SPECIAL TOOLS . . . . . . . . . . . . . . . . . 199
Special tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

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Language: English 
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