Service Repair Manual
Models
312C and 312C L Excavator
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
1/16
Shutdown SIS Previous Screen Product: EXCAVATOR Model: 312C L EXCAVATOR CBT Configuration: 312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engine
Disassembly and Assembly 312C Excavator Machine Systems Media Number -RENR7476-00
Publication Date -01/07/2003
Date Updated -22/07/2003
i06252122
Swing Drive - Disassemble - Older Style SMCS - 5459-015
Disassembly Procedure Table 1 Required Tools Tool
Part Number
Part Description
Qty
A
1P-2420
Transmission Repair Stand
1
B
1P-0510
Driver Gp
1
C
5F-7343
Bearing Puller Gp
1
Start By: a. Remove the swing motor. b. Remove the swing drive.
NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 1
2/16
g01001554
1. Use a suitable lifting device to place the swing drive on Tooling (A). The weight of the swing drive is approximately 84 kg (185 lb). 2. Remove sun gear (1) from carrier assembly (2). 3. Remove carrier assembly (2) from ring gear (3).
Illustration 2
g00986664
4. Use the following procedure to disassemble carrier assembly (2). a. Use a hammer and a punch to drive spring pin (5) into planetary shaft (4). Repeat for the remaining planetary shafts.
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 3
g00828757
b. Remove planetary shafts (4), planetary gears (7), and thrust washers (6) from the carrier assembly. c. Remove bearings (8) from planetary gears (7). d. Use a hammer and a punch to remove pins (5) from planetary shafts (4).
Illustration 4
g00828759
5. Remove washer (9) from the carrier assembly.
Illustration 5
g00828760
6. Remove sun gear (10) and ring gear (11) from the swing drive.
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
3/16
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 6
4/16
g01001555
7. Loosen bolt (12) until approximately one half of the threads are out of the shaft.
Illustration 7
g00828763
8. Use a suitable lifting device to position remaining components with the pinion gear on top. The weight of the components is approximately 66 kg (145 lb). 9. Remove bolts (13).
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 8
5/16
g00828764
10. Use a suitable lifting device to position carrier assembly (14) and swing drive housing (15) in a suitable press. Support the bottom of swing drive housing (15) on suitable cribbing.
Illustration 9
g01439357
11. Carefully press bolt (12) in order to force the pinion shaft, the bearings, and the cage out of carrier assembly (14) and swing drive housing (15). 12. Remove carrier assembly (14) with the bearing cone from the swing drive housing.
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 10
g01001559
13. Use Tooling (B), Tooling (C), and a suitable press to remove carrier assembly (14) from bearing cone (18). Support Tooling (C) with suitable blocks. Place support under carrier assembly (14) in order to prevent carrier assembly (14) from dropping to the floor.
Illustration 11
g00828771
Illustration 12
g00828772
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
6/16
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
7/16
14. Use the following procedure to disassemble carrier assembly (14). a. Use a hammer and a punch to drive spring pin (20) into planetary shaft (19). Repeat for the remaining planetary shafts. b. Remove planetary shafts (19), thrust washers (21), and planetary gears (22) from the carrier assembly. c. Remove bearings (23) from planetary gears (22). d. Use a hammer and a punch to remove spring pins (20) from planet shafts (19).
Illustration 13
g00828774
15. Remove retainer (24) from carrier assembly (14).
Illustration 14
g00828775
16. Remove spacers (25) and (26) from the remaining pinion and bearing assembly.
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 15
8/16
g01001562
17. Place the pinion and bearing assembly in a suitable press. Use Tooling (B) and Tooling (C) to remove bearing cone (28) from shaft (27). Place support under shaft (27) in order to prevent shaft (27) from dropping to the floor.
Illustration 16
g00828778
18. Remove cage (29) from shaft (27).
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 17
g00828781
19. Remove lip seal (30) from cage (29).
Illustration 18
g00828782
20. Remove bearing cup (31) from swing drive housing (15).
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
9/16
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T E...
Illustration 19
g01001563
21. Flip swing drive housing (15) and remove bearing cup (32).
Newer Style Table 2 Required Tools Tool
Part Number
Part Description
Qty
A
5F-7343
Bearing Puller Gp
1
Start By: a. Remove the swing motor. b. Remove the swing drive.
NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
10/16
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T E...
Illustration 20
11/16
g03576636
1. Use a suitable lifting device to place the swing drive on table. The weight of the swing drive is approximately 84 kg (185 lb). 2. Remove sun gear (1) from carrier assembly (2). 3. Remove carrier assembly (2) from ring gear (3).
Illustration 21
g03576957
4. Remove retaining ring (4). Remove thrust washer (5) and planetary gear (6).
Illustration 22
g03576977
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T E...
Illustration 23
g03576996
5. Remove bearing assembly (6) and thrust washer (7). 6. Drive spring pin (9) into shaft (8). Remove shaft (8) from carrier assembly (2). 7. Repeat Steps 4 through 6 for the remaining planetary gears.
Illustration 24
g03577121
Illustration 25
g03577158
8. Remove sun gear (10) from the planetary carrier assembly.
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
12/16
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T E...
9. Remove ring gear (11) from housing (12).
Illustration 26
g03577196
10. Remove planetary carrier assembly (13) from the pinion shaft.
Illustration 27
g03577357
11. Drive spring pin (15) into shaft (14) in order to remove shaft (14) and the planetary gear assembly.
Illustration 28
g03577616
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
13/16
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T E...
14/16
12. Remove shaft (14), thrust washer (16), bearings (17), planetary gear (18), and thrust washer (19). Repeat Steps 11 through 12 for the remaining planetary gear assemblies.
Illustration 29
g03577639
13. Turn the housing and the pinion shaft assembly over and remove plates (20).
Illustration 30
g03578221
14. Remove retaining ring (21) in order to remove pinion shaft (22).
Illustration 31
g03578226
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T E...
15/16
15. Use a suitable press to remove pinion shaft (22) from the bearings and housing assembly (12). Note: Take some precaution to prevent the pinion shaft from dropping out of the bottom.
Illustration 32
g03578276
Illustration 33
g03578319
16. Remove bearing (23) and seal (24) from the housing.
Illustration 34
g03578476
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T E...
16/16
17. Use Tooling (A) and a suitable press to remove bearing assembly (25) from pinion shaft (22). Support Tooling (A) with suitable blocks. Place support under pinion shaft (22) in order to keep from dropping to the floor. Copyright 1993 - 2020 Caterpillar Inc.
Sun May 17 12:45:23 UTC+0800 2020
All Rights Reserved. Private Network For SIS Licensees.
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
1/18
Shutdown SIS Previous Screen Product: EXCAVATOR Model: 312C L EXCAVATOR CBT Configuration: 312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engine
Disassembly and Assembly 312C Excavator Machine Systems Media Number -RENR7476-00
Publication Date -01/07/2003
Date Updated -22/07/2003
i07420705
Swing Drive - Assemble - Older Style SMCS - 5459-016
Assembly Procedure Table 1 Required Tools Tool
Part Number
Part Description
Qty
A
1P-2420
Transmission Repair Stand
1
B
1P-0510
Driver Gp
1
D
FT-1317
Sleeve
1
E
5P-3413
Pipe Sealant
-
F
-
Loctite High Flex Form-In-Place Gasket
-
5P-8247
Hard Washer
2
5P-8245
Hard Washer
2
4C-5655
Threaded Adapter
2
8B-7550
Push-Puller Leg
2
1U-9895
Crossblock
1
3H-0465
Push-Puller Plate
4
6B-6682
Full Nut
2
9U-5017
Torque Wrench
1
0V-0375
Bolt
1
1F-7958
Full Nut
1
G
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
-
Loctite 243
2/18
-
NOTICE Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.
Illustration 1
g00828781
1. Apply a thin coating of Tooling (E) to the seal bore in cage (29). Install lip seal (30) in cage (29).
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 2
g00828778
2. Install shaft (27) in cage (29).
Illustration 3
g00828784
3. Raise the temperature of bearing cone (28) and place bearing cone (28) on shaft (27).
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
3/18
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 4
4/18
g01001588
4. Use Tooling (B), Tooling (D), and a suitable press to install bearing cone (28) on the shaft.
Illustration 5
g01001563
5. Lower the temperature of bearing cup (32). Install bearing cup (32) in swing drive housing (15).
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 6
5/18
g00828782
6. Flip swing drive housing (15). Lower the temperature of bearing cup (31). Install bearing cup (31) in swing drive housing (15).
Illustration 7
g00828788
7. Clean the mating surfaces of swing drive housing (15) and cage (29). Apply a thin coating of Tooling (F) to the mating surfaces of cage (29) and swing drive housing (15). 8. Install the assembled shaft (27) and cage (29) in swing drive housing (15). 9. Apply Tooling (H) to the threads of bolts (13). Install bolts (13). Tighten bolts (13) to torque of 33 ± 3 N·m (25 ± 2 lb ft).
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
Thank you very much for your reading. Please Click Here. Then Get COMPLETE MANUAL. NO WAITING
NOTE: If there is no response to click on the link above, please download the PDF document first and then click on it.
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 8
g00828789
10. Install spacers (25) and (26).
Illustration 9
g01001808
11. Set up Tooling (G), as shown. Check and record the seal drag torque. Note: Make sure that the shaft does not turn when the seal drag torque is checked.
Illustration 10
g00828772
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
6/18
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 11
7/18
g00828771
12. Use the following procedure to assemble the carrier assembly: a. Install bearing (23) in planetary gear (22). b. Place thrust washer (21) on each side of the assembled bearing and planetary gear. c. Slide thrust washers (21), bearing (23), and planetary gear (22) into the carrier assembly. d. Install planetary shaft (19) so that the hole for spring pin (20) aligns with the hole in the carrier assembly. e. Use a hammer to drive spring pin (20) into the carrier assembly and the planetary shaft. f. Repeat Steps 12.a through 12.e for the remaining planetary gear sets.
Illustration 12
g00828792
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17
312C & 312C L Excavators CBT00001-UP (MACHINE) POWERED BY 3054T Engi...
Illustration 13
8/18
g01001836
13. Raise the temperature of bearing cone (18). Use Tooling (B) and Tooling (D) to install bearing cone (18) on carrier assembly (14). 14. Use a suitable lifting device to place swing drive housing (15) with shaft (27), cage (29), and bearing cone (28) on Tooling (A). Refer to Illustration 7 in order to view the assembly.
Illustration 14
g01001846
15. Install carrier assembly (14) into swing drive housing (15).
https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sis...
2020/5/17