CEBM008201
Shop Manual
WHEEL LOADER SERIAL NUMBERS
WA430-6
A42001-UP
ENGINE
SAA6D114E-3
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 2011 Komatsu Printed in U.S.A. Komatsu America Corp. February 2011
FOREWORD
CONTENTS
12 CONTENTS 01
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 01-1
10
STRUCTURE, FUNCTION AND MAINTENANCE STANDARD . . . . . . . . . . . . . . . . . . . . 10-1
20
STANDARD VALUE TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-1
30
TESTING AND ADJUSTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-1
40
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-1
50
DISASSEMBLY AND ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-1
90
DIAGRAMS AND SCHEMATICS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90-1
00-2
00
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40-591
40-624
40-657
40-559
40-592
40-625
40-658
40-560
40-593
40-626
40-659
40-561
40-594
40-627
40-660
40-562
40-595
40-628
40-661
40-563
40-596
40-629
40-662
40-564
40-597
40-630
40-663
40-565
40-598
40-631
40-664
40-566
40-599
40-632
40-665
40-567
40-600
40-633
40-666
40-568
40-601
40-634
40-667
40-569
40-602
40-635
40-668
40-570
40-603
40-636
40-669
40-571
40-604
40-637
40-670
WA430-6
Rev
00-2-11
FOREWORD Mark
Page
Rev
Mark
Page
Rev
Mark
Page
Rev
Mark
Page
40-671
40-704
40-737
40-770
40-672
40-705
40-738
40-771
40-673
40-706
40-739
40-772
40-674
40-707
40-740
40-773
40-675
40-708
40-741
40-774
40-676
40-709
40-742
40-775
40-677
40-710
40-743
40-776
40-678
40-711
40-744
40-777
40-679
40-712
40-745
40-778
40-680
40-713
40-746
40-779
40-681
40-714
40-747
40-780
40-682
40-715
40-748
40-781
40-683
40-716
40-749
40-782
40-684
40-717
40-750
40-783
40-685
40-718
40-751
40-784
40-686
40-719
40-752
40-785
40-687
40-720
40-753
40-786
40-688
40-721
40-754
40-787
40-689
40-722
40-755
40-788
40-690
40-723
40-756
40-789
40-691
40-724
40-757
40-790
40-692
40-725
40-758
40-791
40-693
40-726
40-759
40-792
40-694
40-727
40-760
40-793
40-695
40-728
40-761
40-794
40-696
40-729
40-762
40-795
40-697
40-730
40-763
40-796
40-698
40-731
40-764
40-797
40-699
40-732
40-765
40-798
40-700
40-733
40-766
40-799
40-701
40-734
40-767
40-800
40-702
40-735
40-768
40-801
40-703
40-736
40-769
40-802
00-2-12
Rev
WA430-6
FOREWORD Mark
Page
Rev
Mark
Page
Rev
Mark
Page
Rev
Mark
Page
40-803
40-836
40-869
50-25
40-804
40-837
40-870
50-26
40-805
40-838
40-871
50-27
40-806
40-839
40-872
50-28
40-807
40-840
40-873
50-29
40-808
40-841
40-874
50-30
40-809
40-842
40-875
50-31
40-810
40-843
40-876
50-32
40-811
40-844
40-812
40-845
50-1
50-34
40-813
40-846
50-2
50-35
40-814
40-847
50-3
50-36
40-815
40-848
50-4
50-37
40-816
40-849
50-5
50-38
40-817
40-850
50-6
50-39
40-818
40-851
50-7
50-40
40-819
40-852
50-8
50-41
40-820
40-853
50-9
50-42
40-821
40-854
50-10
50-43
40-822
40-855
50-11
50-44
40-823
40-856
50-12
50-45
40-824
40-857
50-13
50-46
40-825
40-858
50-14
50-47
40-826
40-859
50-15
50-48
40-827
40-860
50-16
50-49
40-828
40-861
50-17
50-50
40-829
40-862
50-18
50-51
40-830
40-863
50-19
50-52
40-831
40-864
50-20
50-53
40-832
40-865
50-21
50-54
40-833
40-866
50-22
50-55
40-834
40-867
50-23
50-56
40-835
40-868
50-24
50-57
WA430-6
Rev
50-33
00-2-13
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