CEBM019109
Shop
Manual
D51EX-22
D51PX-22
CRAWLER DOZER
SERIAL NUMBERS D51EX-22 B10001 and up
D51PX-22 B10001 and up
ENGINE 6D107E-1
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.
Copyright 2013 Komatsu
Printed in U.S.A.
Komatsu America Corp.
March 2013
,FOREWORD CONTENTS
12
CONTENTS 00
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
STRUCTURE, FUNCTION AND MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . 10-1
STANDARD VALUE TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
TESTING AND ADJUSTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-1
DISASSEMBLY AND ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-1
OTHER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90-1
00-2 b
,FOREWORD
The affected pages are indicated by using the following Mark Indication Action
marks. It is requested that necessary actions be taken to
these pages according to the table below. m New page to be added Add
l Page to be replaced Replace
( ) Page to be deleted Discard
Mark Page Rev Mark Page Rev Mark Page Rev Mark Page Rev
l 00-1 J 00-20 10-7 10-36 d
00-2 b 00-21 10-8 10-37 d
l 00-2-1 J 00-22 10-9 10-38 d
l 00-2-2 J 00-23 10-10 10-39 d
l 00-2-3 J 00-24 10-11 10-40 d
l 00-2-4 J 00-25 10-12 10-41 d
l 00-2-5 J 00-26 10-13 10-42 d
l 00-2-6 J 00-27 10-14 10-43 d
l 00-2-7 J 00-28 10-15 10-44 d
l 00-2-8 J 10-16 10-45 d
l 00-2-9 J 01-1 10-17 10-46 d
l 00-2-10 J 01-2 d 10-18 10-47 d
00-3 01-3 d 10-19 10-48 d
00-4 01-4 10-20 10-49 d
00-5 01-5 10-21 10-50 d
00-6 01-6 d 10-22 10-51 d
00-7 01-7 10-23 10-52 d
00-8 01-8 10-24 10-53 d
00-9 01-9 10-25 10-54 d
00-10 01-10 10-26 10-55 d
00-11 01-11 10-27 10-56 d
00-12 01-12 10-28 d 10-57 d
00-13 10-29 d 10-58 d
00-14 10-1 d 10-30 10-59 d
00-15 10-2 d 10-31 10-60 d
00-16 10-3 10-32 10-61 d
00-17 10-4 10-33 d 10-62 d
00-18 10-5 10-34 d 10-63 d
00-19 10-6 10-35 d 10-64 d
D51EX/PX-22 D51EX/PX-22 00-2-1 J
, FOREWORD
Mark Page Rev Mark Page Rev Mark Page Rev Mark Page Rev
10-65 d 10-98 d 10-131 d 10-164
10-66 d 10-99 d 10-132 d 10-165
10-67 d 10-100 d 10-133 d 10-166
10-68 d 10-101 d 10-134 d 10-167
10-69 d 10-102 d 10-135 d 10-168
10-70 d 10-103 d 10-136 d 10-169
10-71 d 10-104 d 10-137 d 10-170
10-72 d l 10-105 J 10-138 d 10-171
10-73 d 10-106 d 10-139 d 10-172
10-74 d 10-107 d 10-140 d 10-173
10-75 d 10-108 d 10-141 d 10-174
10-76 d 10-109 d 10-142 10-175
10-77 d 10-110 d 10-143 10-176
10-78 d 10-111 d 10-144 10-177
10-79 d 10-112 d 10-145 10-178
10-80 d 10-113 d 10-146 10-179
10-81 d 10-114 d 10-147 10-180
10-82 I 10-115 d 10-148 10-181
10-83 d 10-116 d 10-149 10-182
10-84 d 10-117 d 10-150 10-183
10-85 d l 10-118 J 10-151 10-184
10-86 d 10-119 d 10-152 10-185
l 10-87 J 10-120 d 10-153 10-186
10-88 d 10-121 d 10-154 10-187
10-89 d 10-122 d 10-155 10-188
10-90 d 10-123 d 10-156
10-91 d 10-124 d 10-157 20-1
10-92 d 10-125 d 10-158 20-2 e
10-93 d 10-126 d 10-159 20-3
10-94 d 10-127 d 10-160 20-4
10-95 d 10-128 d 10-161 20-5
10-96 d 10-129 d 10-162 20-6
10-97 d 10-130 d 10-163 20-7
00-2-2 J D51EX/PX-22
Shop
Manual
D51EX-22
D51PX-22
CRAWLER DOZER
SERIAL NUMBERS D51EX-22 B10001 and up
D51PX-22 B10001 and up
ENGINE 6D107E-1
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.
Copyright 2013 Komatsu
Printed in U.S.A.
Komatsu America Corp.
March 2013
,FOREWORD CONTENTS
12
CONTENTS 00
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
STRUCTURE, FUNCTION AND MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . 10-1
STANDARD VALUE TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
TESTING AND ADJUSTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-1
DISASSEMBLY AND ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-1
OTHER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90-1
00-2 b
,FOREWORD
The affected pages are indicated by using the following Mark Indication Action
marks. It is requested that necessary actions be taken to
these pages according to the table below. m New page to be added Add
l Page to be replaced Replace
( ) Page to be deleted Discard
Mark Page Rev Mark Page Rev Mark Page Rev Mark Page Rev
l 00-1 J 00-20 10-7 10-36 d
00-2 b 00-21 10-8 10-37 d
l 00-2-1 J 00-22 10-9 10-38 d
l 00-2-2 J 00-23 10-10 10-39 d
l 00-2-3 J 00-24 10-11 10-40 d
l 00-2-4 J 00-25 10-12 10-41 d
l 00-2-5 J 00-26 10-13 10-42 d
l 00-2-6 J 00-27 10-14 10-43 d
l 00-2-7 J 00-28 10-15 10-44 d
l 00-2-8 J 10-16 10-45 d
l 00-2-9 J 01-1 10-17 10-46 d
l 00-2-10 J 01-2 d 10-18 10-47 d
00-3 01-3 d 10-19 10-48 d
00-4 01-4 10-20 10-49 d
00-5 01-5 10-21 10-50 d
00-6 01-6 d 10-22 10-51 d
00-7 01-7 10-23 10-52 d
00-8 01-8 10-24 10-53 d
00-9 01-9 10-25 10-54 d
00-10 01-10 10-26 10-55 d
00-11 01-11 10-27 10-56 d
00-12 01-12 10-28 d 10-57 d
00-13 10-29 d 10-58 d
00-14 10-1 d 10-30 10-59 d
00-15 10-2 d 10-31 10-60 d
00-16 10-3 10-32 10-61 d
00-17 10-4 10-33 d 10-62 d
00-18 10-5 10-34 d 10-63 d
00-19 10-6 10-35 d 10-64 d
D51EX/PX-22 D51EX/PX-22 00-2-1 J
, FOREWORD
Mark Page Rev Mark Page Rev Mark Page Rev Mark Page Rev
10-65 d 10-98 d 10-131 d 10-164
10-66 d 10-99 d 10-132 d 10-165
10-67 d 10-100 d 10-133 d 10-166
10-68 d 10-101 d 10-134 d 10-167
10-69 d 10-102 d 10-135 d 10-168
10-70 d 10-103 d 10-136 d 10-169
10-71 d 10-104 d 10-137 d 10-170
10-72 d l 10-105 J 10-138 d 10-171
10-73 d 10-106 d 10-139 d 10-172
10-74 d 10-107 d 10-140 d 10-173
10-75 d 10-108 d 10-141 d 10-174
10-76 d 10-109 d 10-142 10-175
10-77 d 10-110 d 10-143 10-176
10-78 d 10-111 d 10-144 10-177
10-79 d 10-112 d 10-145 10-178
10-80 d 10-113 d 10-146 10-179
10-81 d 10-114 d 10-147 10-180
10-82 I 10-115 d 10-148 10-181
10-83 d 10-116 d 10-149 10-182
10-84 d 10-117 d 10-150 10-183
10-85 d l 10-118 J 10-151 10-184
10-86 d 10-119 d 10-152 10-185
l 10-87 J 10-120 d 10-153 10-186
10-88 d 10-121 d 10-154 10-187
10-89 d 10-122 d 10-155 10-188
10-90 d 10-123 d 10-156
10-91 d 10-124 d 10-157 20-1
10-92 d 10-125 d 10-158 20-2 e
10-93 d 10-126 d 10-159 20-3
10-94 d 10-127 d 10-160 20-4
10-95 d 10-128 d 10-161 20-5
10-96 d 10-129 d 10-162 20-6
10-97 d 10-130 d 10-163 20-7
00-2-2 J D51EX/PX-22
