This document provides parts information for a TB20R/23R excavator. It includes exploded diagrams and lists of parts for systems like the crawler belt, track roller, dozer blade, and slew bearing. Each part is identified by number, description, quantity, and other identifying information. The document contains replacement part numbers and serial number ranges for some components.

1. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
Index
Reference 0 ﾍﾟｰｼﾞ 0
Book No.BD5Z008
Serial No.12300007-
TB20R
TB23R
10
2
1
8
5
4
3
6

2. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
SHOE SLIDE ASSY
Reference D5A120 ﾍﾟｰｼﾞ 1-2
STEEL
D5A120 S=1/12
4
2
1
3
1
3
1

3. SHOE SLIDE ASSY
Reference:D5A120 Page:1-2
Item Part number Description Q'ty Chan. Serial No. Serv. Remarks
SHOE SLIDE ASSY (rubber)
SHOE SLIDE ASSY (steel)
1 0421013800 SLIDE, shoe 4
2 0331011200 GUIDE 2 rubber
3 1100041020 BOLT 4 rubber
1100041020 BOLT 8 steel
4 1110041030 SCREW, cap 4
C4a200

4. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
CRAWLER BELT
Reference D5A022 ﾍﾟｰｼﾞ 1-3
D5A022 S=free
STEEL
RUBBER
2
51
4
3
6
7

5. CRAWLER BELT
Reference:D5A022 Page:1-3
Item Part number Description Q'ty Chan. Serial No. Serv. Remarks
0 1914050600 BELT ASSY, steel crawler 2
1 1914050614 PLATE ASSY, master 1
2 1914050613 PLATE ASSY 42
3 1914050005 BUSHING 43
4 1914050006 PIN, track 42
5 1914050007 PIN, master 1
6 1914050008 PIN, cotter 1
7 1914078500 BELT ASSY, rubber crawler 2
D5a022

6. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
CRAWLER BELT (with rubber pads)
Reference D5A131 ﾍﾟｰｼﾞ 1-4
D5A131 S=free
2
51
4
3
6
9
8
7

7. CRAWLER BELT (with rubber pads)
Reference:D5A131 Page:1-4
Item Part number Description Q'ty Chan. Serial No. Serv. Remarks
0 1914050700 BELT ASSY, steel crawler (with rubber pads) 2
0-1 1914050600 BELT ASSY, steel crawler 1 M
1 1914050614 PLATE ASSY, master 1
2 1914050613 PLATE ASSY 42
3 1914050005 BUSHING 43
4 1914050006 PIN, track 42
5 1914050007 PIN, master 1
6 1914050008 PIN, cotter 1
7 1914400200 PAD, rubber 43
8 1130040012 NUT 2
9 1140020012 WASHER, spring 2
D5a133

8. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
RUBBER PAD (for AIWA)
Reference D5A030 ﾍﾟｰｼﾞ 1-5
D5A030 S=free
1
3
2

9. RUBBER PAD (for AIWA)
Reference:D5A030 Page:1-5
Item Part number Description Q'ty Chan. Serial No. Serv. Remarks
PAD ASSY, rubber
1 1914400100 PAD, rubber 43
2 1100041225 BOLT 2
3 1140020012 WASHER, spring 2
D5a031

10. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
TRACK ROLLER
Reference D5A040 ﾍﾟｰｼﾞ 1-6
D5A040 S=1/4
8
9
4
3
2
3
6
5
9
8
1
7

11. TRACK ROLLER
Reference:D5A040 Page:1-6
Item Part number Description Q'ty Chan. Serial No. Serv. Remarks
ROLLER ASSY, track
0-1 0341301100 ROLLER SUB ASSY 6 123000007~123000512
0341301300 ROLLER SUB ASSY 6 123000513~
1 0341301110 SHELL 1
2 0341301120 SHAFT 1 123000007~123000512
0341301320 SHAFT 1 123000513~
3 1300006206 BEARING 2
4 1431203055 SEAL 1
5 1431203062 SEAL 1
6 1221000062 RING, snap 1
7 1501810001 PLUG 1
8 1101041225 BOLT 12 123000007~123000512
1101041440 BOLT 12 123000513~
9 1140010012 WASHER 12 123000007~123000512
1141550014 WASHER 12 123000513~
D5a044

12. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
FRONT IDLER
Reference D5A050 ﾍﾟｰｼﾞ 1-7
D5A050 S=1/5
1
9
10
4
3
2
3
6
5
7
8
10

13. FRONT IDLER
Reference:D5A050 Page:1-7
Item Part number Description Q'ty Chan. Serial No. Serv. Remarks
IDLER ASSY, front (steel)
IDLER ASSY, front (rubber)
0-1 0341402300 IDLER SUB ASSY (steel) 2
0341402500 IDLER SUB ASSY (rubber) 2
1 0341402310 IDLER 1 steel
0341402510 IDLER 1 rubber
2 0341402120 SHAFT 1
3 1300006207 BEARING 2
4 1431203562 SEAL 1
5 1431203572 SEAL 1
6 1221000072 RING, retaining 1
7 1501810001 PLUG 1
8 0341402010 YOKE (R.H.) 2 A 123000007~123000059
0341402210 YOKE (R.H.) 2 a (H) 123000060~
9 0341402020 YOKE (L.H.) 2 A 123000007~123000059
0341402220 YOKE (L.H.) 2 a (H) 123000060~
10 1213000885 PIN, spring 4
<<NOTE>>
SET "A" is interchangeable with SET "a".
D5a053

14. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
TRACK ADJUSTER
Reference D5A060 ﾍﾟｰｼﾞ 1-8
D5A060 S=1/5
5
2
3
1
7-2
7-3
7-5
7-4
7-1
7-6
7-7
4
6
9
8

15. TRACK ADJUSTER
Reference:D5A060 Page:1-8
Item Part number Description Q'ty Chan. Serial No. Serv. Remarks
SPRING ASSY
0-1 0341502300 SPRING SUB ASSY 2 A 123000007~123000608
0341502500 SPRING SUB ASSY 2 a 123000609~
1 0371501200 ROD 1 A 123000007~123000608
0341502510 ROD 1 a 123000609~
2 0341502120 PLATE 1 A 123000007~123000608
0341502520 PLATE 1 a 123000609~
3 0007000004 SPRING 1
4 1132030020 NUT 1 A 123000007~123000608
1132530020 NUT 1 a 123000609~
5 1210000440 PIN, split 1
6 1141550020 WASHER 1
7 0351504200 CYLINDER ASSY, grease 2
7-1 0351503210 CYLINDER, grease 1
7-2 0351503220 PISTON 1
7-3 1400402340 SEAL, oil 1
7-4 1422010400 O-RING 1
7-5 1421020400 RING, back-up 1
7-6 1541201616 WASHER 1
7-7 1541301602 VALVE ASSY, check 1
8 1110041035 SCREW, cap 8 A 123000007~123000608
1110041040 SCREW, cap 8 a 123000609~
9 1140020010 WASHER, spring 8
<<NOTE>>
SET "A" is interchangeable with SET "a".
D5a062

16. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
TRAVEL DEVICE
Reference D5A070 ﾍﾟｰｼﾞ 1-9
D5A070 S=1/5
2
1
6
6
7
4
3
5

17. TRAVEL DEVICE
Reference:D5A070 Page:1-9
Item Part number Description Q'ty Chan. Serial No. Serv. Remarks
MOTOR ASSY, travel
1 0341602110 SPROCKET 2
2 1903124200 MOTOR, travel 2 123000007~123000914
1903125900 MOTOR, travel 2 123000915~
3 1110041022 SCREW, cap 24
4 1110041025 SCREW, cap 22
5 1141550010 WASHER 24
6 1515600200 ADAPTOR 4
1420010110 O-RING 1
7 1515600201 ADAPTOR 4
1420010140 O-RING 1
D5a072

18. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
SLEW BEARING
Reference D5A080 ﾍﾟｰｼﾞ 1-10
D5A080 S=1/6
3
4
1
4
3
2
2-1

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20. SLEW BEARING
Reference:D5A080 Page:1-10
Item Part number Description Q'ty Chan. Serial No. Serv. Remarks
BEARING ASSY, slew
1 0352000100 BOLT 1
2 1913004250 BEARING 1
2-1 1913004259 SEAL 1
3 1101041260 BOLT 31
4 1141550012 WASHER 16
D5a081

21. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
SWIVEL JOINT & ACCESSORIES
Reference D5A090 ﾍﾟｰｼﾞ 1-11
D5A090 S=1/6
3
4
1
12
11
10
10
11
12
12
12
12 5
6
9
9
7
2 11
11

22. SWIVEL JOINT & ACCESSORIES
Reference:D5A090 Page:1-11
Item Part number Description Q'ty Chan. Serial No. Serv. Remarks
JOINT ASSY, swivel
1 0072100100 COLLAR 1
2 1904008300 JOINT, swivel 1
3 1101041230 BOLT 2
4 1140020012 WASHER, spring 2
5 1100040825 BOLT 4
6 1140020008 WASHER, spring 4
7 0432102100 ELBOW 1
9 1515600571 ADAPTOR 4
1420010110 O-RING 1
10 1515010130 ELBOW 2
1420010110 O-RING 1
11 1515010041 ELBOW 6
1420010140 O-RING 1
12 1515012040 ELBOW 5
1420010110 O-RING 1
D5a092

23. TB20R/23R [P-TB23RBAB] Book No. BD5Z008 S/N 12300007-
DOZER BLADE
Reference D5A101 ﾍﾟｰｼﾞ 1-12
D5A101 S=1/12
6
9
10
2
11
113
1-22
1-23
5
7
8
1
5
7
8
4
12
8
4
12
8 1-21
1-22
1-21
1-23
1-22