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5J2449 CYLINDER GROUP--R.H.--153 mm (6 in.) Bore x 813 mm (32 in.) Stroke--Type 3 5J2450 CYLINDER GROUP--L.H.--153 mm (6 in.) Bore x 813 mm (32 in.) Stroke 621B


HYDRAULIC SYSTEM
CYLINDER GP
LINES GP-HYDRAULIC
IMPLEMENTS
EJECTOR GP
BRAKING SYSTEM
CONTROL GP

WHEEL SCRAPER 621B WHEEL SCRAPER 31V
 621B SCRAPER 31V00001-UP (MACHINE) UEP0871S 621B 31V   (1975)

HYDRAULIC SYSTEM

CYLINDER GP
CYLINDER GP-APRON
5J-0778 CYLINDER GP-APRON
CYLINDER GP-APRON
5J-0778 CYLINDER GP-APRON
5J-2449 BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
5J-2450 BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
5J-2449 BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
5J-2450 BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
5J-2449 CYLINDER GROUP--R.H.,CYLINDER GROUP--L.H.
CYLINDER GROUP--R.H.,CYLINDER GROUP--L.H.
5J-2450 CYLINDER GROUP--R.H.,CYLINDER GROUP--L.H.
 

#UEP0871S0030
 

5J-2449: CYLINDER GROUP--R.H.,CYLINDER GROUP--L.H.

5J2449 CYLINDER GROUP--R.H.--153 mm (6 in.) Bore x 813 mm (32 in.) Stroke--Type 3
5J2450 CYLINDER GROUP--L.H.--153 mm (6 in.) Bore x 813 mm (32 in.) Stroke
sp1048 UEP0871S
  For full view, you need register

Parts for your 621B WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2Y-1986 [1] NUT  
2. 7J-5326 [1] RING  
3. 5J-4989 [1] SEAL ASSEM.  
4. 9J-8047 [1] PISTON  
5. 3G-1728 C [1] HEAD  
6. 1D-4612 [2] BOLT 10.16 cm(4 in.) long  
7. 5H-1504 [8] WASHER  
8. 5J-0974 R [1] CYLINDER ASSEM.  
    (Includes)
9. 5J-2445 [1] BEARING  
10. 5J-3620 C [1] SEAL  
11. 5J-2453 R [1] ROD ASSEM.  
    (Includes)
12. 5J-2445 [1] BEARING  
13. 5H-3252 [1] SEAL  
14. 1K-6982 [1] SEAL  
15. 5J-0964 C [1] SEAL  
16. 3B-2968 [6] BOLT 8.89 cm(3.50 in) long  
17. 2K-3258 [1] RING  
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#UEP0871S0031
 

5J-2450: CYLINDER GROUP--R.H.,CYLINDER GROUP--L.H.

5J2449 CYLINDER GROUP--R.H.--153 mm (6 in.) Bore x 813 mm (32 in.) Stroke--Type 3
5J2450 CYLINDER GROUP--L.H.--153 mm (6 in.) Bore x 813 mm (32 in.) Stroke
sp1048 UEP0871S
5J2450 CYLINDER GROUP--R.H.,CYLINDER GROUP--L.H. Parts scheme
  For full view, you need register

Parts for your 621B WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2Y-1986 [1] NUT  
2. 7J-5326 [1] RING  
3. 5J-4989 [1] SEAL ASSEM.  
4. 9J-8047 [1] PISTON  
5. 3G-1728 C [1] HEAD  
6. 1D-4612 [2] BOLT 10.16 cm(4 in.) long  
7. 5H-1504 [8] WASHER  
8. 5J-0974 R [1] CYLINDER ASSEM.  
    (Includes)
9. 5J-2445 [1] BEARING  
10. 5J-3620 C [1] SEAL  
11. 5J-2453 R [1] ROD ASSEM.  
    (Includes)
12. 5J-2445 [1] BEARING  
13. 5H-3252 [1] SEAL  
14. 1K-6982 [1] SEAL  
15. 5J-0964 C [1] SEAL  
16. 3B-2968 [6] BOLT 8.89 cm(3.50 in) long  
17. 2K-3258 [1] RING  
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#UEP0871S0032
 

8J-7820: LINES GP-EJECTOR

8J7820 EJECTOR LINES GROUP
sp605 UEP0871S
8J7820 LINES GP-EJECTOR Parts scheme
  For full view, you need register

Parts for your 621B WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0L-1329 [4] BOLT  
2. 8J-7786 [1] TUBE ASSEM.  
    (Includes)
3. 9S-6130 [1] PLUG  
  2S-4078 [1] SEAL  
4. 6J-9542 [2] CLAMP  
5. 7B-3235 [1] BOLT  
6. 3B-4508 [9] LOCKWASHER  
7. 4B-4280 [9] WASHER  
8. 4J-0524 [2] SEAL  
9. 8J-7783 [1] HOSE ASSEM.  
    (Includes)
  5P-0182 J HOSE 51.3 cm(20.20 in.)  
10. 8S-8957 [1] STEM ASSEM. (60)  
11. 3S-7116 [2] SLEEVE  
12. 3S-8573 [1] STEM ASSEM. (90)  
13. 4J-0522 [4] SEAL  
14. 8J-7787 [1] TUBE ASSEM. (R.H.)  
    (Includes)
15. 9S-4181 [1] PLUG  
  7M-8485 [1] SEAL  
16. 8J-7789 [1] TUBE ASSEM. (L.H.)  
    (Includes)
17. 9S-4181 [1] PLUG  
  7M-8485 [1] SEAL  
18. 1S-5277 [4] CLAMP  
19. 6H-1717 [4] BOLT  
20. 1P-3704 [4] SEAL  
21. 1P-4578 [8] FLANGE  
22. 3H-5368 [16] BOLT  
  4B-4279 [16] WASHER  
23. 9J-2260 [1] TUBE ASSEM. (R.H.)  
  6J-5860 [1] TUBE ASSEM. (L.H.)  
24. 8J-7785 [2] HOSE ASSEM.  
    (Each Includes)
  5P-0181 J HOSE 139.7 cm(55 in.)  
25. 7S-0575 [1] STEM ASSEM. (90)  
26. 3S-7252 [2] SLEEVE  
27. 3S-8496 [1] STEM ASSEM. (str.)  
28. 4J-0520 [2] SEAL  
29. 0S-1588 [8] BOLT  
  4B-4278 [8] WASHER  
30. 1P-4577 [4] FLANGE  
31. 5J-1020 [2] ANGLE  
32. 0S-1621 [4] BOLT  
33. 4F-5192 [8] BOLT  
34. 0S-1595 [4] BOLT  
35. 8J-7784 [1] HOSE ASSEM.  
    (Includes)
  5P-0182 J HOSE 55.6 cm(21.89 in.)  
36. 3S-8573 [1] STEM ASSEM. (90)  
37. 3S-7116 [2] SLEEVE  
38. 5S-3777 [1] STEM ASSEM. (90)  
39. 0S-1585 [8] BOLT  
40. 1P-4579 [4] FLANGE  
41. 1P-3705 [1] SEAL  
42. 8M-4791 [4] WASHER  
43. 9J-6594 [2] SPACER  
  J   ORDER BY THE CENTIMETRE
 

#UEP0871S0033
 

9J-2266: EJECTOR GP

9J2266 EJECTOR GROUP--Part 1 of 2
sp608 UEP0871S
9J2266 EJECTOR GP Parts scheme
  For full view, you need register

Parts for your 621B WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3J-4779 [2] ROLLER ASSEM.  
    (Each Includes)
  3J-3867 [1] SHAFT  
2. 1A-6258 [1] GASKET  
3. 5F-7309 [1] WASHER  
4. 2Y-1351 [1] CAP  
5. 2H-3786 [1] NUT  
6. 8F-2373 [1] LOCK  
7. 0S-1594 [4] BOLT  
8. 3B-4506 [4] LOCKWASHER  
9. 1B-4018 [1] CONE  
10. 5M-6214 [1] PLUG  
11. 3J-3709 [1] ROLLER ASSEM.  
    (Includes)
12. 3J-4776 [1] SEAL  
13. 1B-3955 [1] CUP  
14. 1B-4012 [1] CUP  
15. 1B-3953 [1] CONE  
16. 0S-1621 [8] BOLT  
  5F-9963 [4] LOCK  
17. 4F-9881 [4] WASHER  
18. 5J-2728 [2] PIN  
19. 1A-1460 [8] BOLT  
20. 3B-4508 [8] LOCKWASHER  
21. 5J-1968 [2] SHAFT  
  3B-8489 [2] FITTING  
22. 3J-7957 [6] SHIM  
23. 9J-5972 [2] ROLLER ASSEM.  
    (Each Includes)
24. 9J-4263 [1] BEARING  
25. 5P-0093 [1] SEAL  
 

#UEP0871S0034
 

9J-2266: EJECTOR GP

9J2266 EJECTOR GROUP--Part 2 of 2
sp609 UEP0871S
9J2266 EJECTOR GP Parts scheme
  For full view, you need register

Parts for your 621B WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6J-9224 [2] ROLLER ASSEM.  
    (Each Includes)
  3J-3867 [1] SHAFT  
2. 1B-4018 [1] CONE  
3. 1A-6258 [1] GASKET  
4. 5F-7309 [1] WASHER  
5. 2Y-1351 [1] CAP  
6. 8F-2373 [1] LOCK  
7. 2H-3786 [1] NUT  
8. 0S-1594 [4] BOLT  
10. 6J-9221 [1] ROLLER ASSEM.  
    (Includes)
11. 1B-4012 [1] CUP  
12. 1B-3955 [1] CUP  
13. 1B-3953 [1] CONE  
14. 3J-4776 [1] SEAL  
15. 0S-1627 [2] BOLT  
16. 1B-4331 [4] NUT  
  3B-4512 [4] LOCKWASHER  
17. 9J-2265 [1] EJECTOR ASSEM.  
18. 5J-2498 [2] BRACKET  
19. 5J-2768 [1] EDGE  
20. 5F-7231 [2] BRACKET  
21. 5J-2497 [1] BRACKET  
22. 8J-5041 [2] BRACKET  
23. 3B-6753 [2] BOLT  
 

#UEP0871S0035
 

6J-9573: CYLINDER GP

6J9573 EJECTOR CYLINDER GROUP--163 mm (6.40 in.) Bore x 1550 mm (61 in.) Stroke
sp908 UEP0871S
6J9573 CYLINDER GP Parts scheme
  For full view, you need register

Parts for your 621B WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2Y-1987 [1] NUT  
2. 7J-8880 [4] RING  
3. 7J-8882 [1] PISTON  
4. 2K-4472 [1] SEAL  
5. 2K-4473 [1] RING  
6. 7J-8881 [1] RING  
7. 5J-2893 R [1] ROD ASSEM.  
8. 0S-1756 [2] BOLT  
9. 3B-4512 [8] LOCKWASHER  
10. 2K-0050 [1] PACKING (2 rings)  
11. 5J-2221 [1] WIPER  
12. 0T-0319 [8] BOLT  
  3B-4507 [8] LOCKWASHER  
13. 5J-2888 [1] RETAINER  
14. 5J-3095 [6] SHIM  
15. 5J-2889 [1] HEAD  
16. 1D-4608 [6] BOLT  
17. 6J-9688 R [1] CYLINDER ASSEM.  
    (Includes)
18. 6B-6946 [1] BOSS  
  R   REMFG PART MAY BE AVAILABLE
 

#UEP0871S0036
 

8J-7930: CONTROL GP-BRAKE

8J7930 BRAKE CONTROL GROUP--Side View--Rear Half--Part 1 of 3
Serial No. 31V1 to 31V746 inclusive
7J4430 Rotochamber parts are shown on Page 29
sp618 UEP0871S
8J7930 CONTROL GP-BRAKE Parts scheme
  For full view, you need register

Parts for your 621B WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1S-0401 [2] UNION  
2. 7J-7235 [1] VALVE ASSEM.  
  8J-1327 [1] KIT  
    (Includes Piston, Valve and Seal)
  8J-1326 [1] KIT  
    (Includes Diaphragm, Seals, Filter, Seat, Springs, Valves & Retainer)
3. 5M-6213 [4] PLUG  
4. 7J-5740 [1] ADAPTER ASSEM.  
5. 3J-5390 [1] PLUG  
6. 5D-5911 [2] HOSE ASSEM. 11 in. (27.9 cm)  
7. 5H-4778 [3] UNION  
8. 4B-3704 [4] WASHER  
9. 7J-4430 Y [2] ROTOCHAMBER ASSEM.  
    (Separate Illustration)
12. 5D-1274 [2] HOSE ASSEM. 100 in. (254 cm)  
13. 4D-0582 [2] UNION  
14. 2L-3331 [4] UNION  
15. 4H-6147 [2] UNION  
16. 3D-6395 [2] HOSE ASSEM. 132 in. (335.3 cm)  
17. 7J-0703 [1] HOSE ASSEM. 140 in. (355.6 cm)  
  Y   SEPARATE ILLUSTRATION
 

#UEP0871S0037
 

8J-7930: CONTROL GP-BRAKE

8J7930 BRAKE CONTROL GROUP--Side View--Front Half--Part 2 of 3
Serial No. 31V1 to 31V746 inclusive
c201412 UEP0871S
8J7930 CONTROL GP-BRAKE Parts scheme
  For full view, you need register

Parts for your 621B WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7D-3957 [1] HOSE ASSEM. (70 in. long)  
2. 4D-0582 [3] UNION (45 degrees)  
3. 2L-3331 [2] UNION (straight)  
4. 6D-4482 [3] CONNECTOR  
5. 1D-6306 [3] NUT  
  4F-7506 [3] WASHER  
6. 3D-7587 [1] UNION (45 degrees)  
  2D-0193 [1] UNION (straight)  
7. 4J-8741 [2] HOSE ASSEM. (68 in. long)  
8. 8J-7544 [2] "U" BOLT  
  8J-7522 [2] PLATE  
  1B-4330 [4] NUT  
  3B-4504 [4] LOCKWASHER  
9. 0S-1594 [1] BOLT  
10. 3B-4506 [2] LOCKWASHER  
11. 8L-6990 [1] CLIP  
12. 9J-3218 [1] STRAP ASSEM.  
13. 4D-0577 [5] UNION (90 degrees)  
14. 7D-4561 [2] HOSE ASSEM. (154 in. long)  
  2M-1908 [2] FITTING (straight)  
15. 6D-9597 [1] HOSE ASSEM. (152 in. long)  
16. 5H-4778 [2] UNION (90 degrees)  
17. 9M-8662 [1] COUPLING  
18. 0S-0509 [1] BOLT  
19. 7D-1553 [1] CLIP  
20. 3B-7722 [1] BUSHING  
 

#UEP0871S0038
 

8J-7930: CONTROL GP-BRAKE

8J7930 BRAKE CONTROL GROUP--Top View--Part 3 of 3
Serial No. 31V1 to 31V746 inclusive
2R618 Valve parts are shown on Page 30
sp619 UEP0871S
8J7930 CONTROL GP-BRAKE Parts scheme
  For full view, you need register

Parts for your 621B WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6B-2982 [2] TEE  
2. 4D-0577 [2] UNION  
3. 4B-6067 [2] ELBOW  
  3B-7738 [2] NIPPLE  
4. 3B-7722 [3] BUSHING  
5. 5M-6213 [2] PLUG  
6. 5D-9508 [2] HOSE ASSEM. 112 in (286.99 cm)  
7. 2R-0618 Y [2] VALVE ASSEM.  
    (Separate Illustration)
8. 5H-4778 [3] UNION  
9. 4D-6243 [1] HOSE ASSEM. 73 in (185.42 cm)  
10. 6D-1432 [1] VALVE ASSEM. (check)  
11. 3D-8884 [3] ELBOW  
12. 3L-7055 [2] UNION  
13. 2Y-2779 [1] RESERVOIR ASSEM.  
    (Includes)
  3J-4564 [3] STUD  
  1B-4203 [3] NUT  
  3B-4506 [3] LOCKWASHER  
14. 9M-8406 [6] CLIP 75 in (19.05 mm) wide  
15. 3S-8664 [8] CLIP 1 in (25.4 mm) wide  
16. 0S-1594 [13] BOLT  
17. 3B-4506 [13] LOCKWASHER  
18. 6D-6018 [1] CROSS  
19. 2H-5202 [1] BODY  
  1H-8306 [1] SCREW  
20. 3J-5390 [1] PLUG  
22. 4J-8648 [2] STRIP  
23. 5K-5338 [2] CLIP  
24. 7D-3963 [2] HOSE ASSEM. 114 in (292.07 cm)  
25. 3J-4447 [1] GASKET  
  Y   SEPARATE ILLUSTRATION
 

#UEP0871S0039
 

8J-7930: CONTROL GP-BRAKE

8J7930 BRAKE CONTROL GROUP--Side View--Rear Half--Part 1 of 3
Serial No. 31V747 to 31V948 inclusive
7J4430 Rotochamber parts are shown on Page 29
sp620 UEP0871S
8J7930 CONTROL GP-BRAKE Parts scheme
  For full view, you need register

Parts for your 621B WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1S-0401 [2] UNION  
2. 7J-7235 [1] VALVE ASSEM.  
  8J-1327 [1] KIT  
    (Includes Piston, Valve and Seal)
  8J-1326 [1] KIT  
    (Includes Diaphragm, Seals, Filter, Seat, Springs, Valves & Retainer)
3. 5M-6213 [4] PLUG  
4. 7J-5740 [1] ADAPTER ASSEM.  
5. 2B-7457 C [1] PLUG  
6. 5D-5911 [2] HOSE ASSEM. 30.48 cm(12.00 in.)  
7. 5H-4778 C [2] UNION  
8. 4B-3704 [4] WASHER  
9. 7J-4430 Y [2] ROTOCHAMBER ASSEM.  
    (Separate Illustration)
12. 5D-1274 [2] HOSE ASSEM. 100 in. (254 cm)  
13. 4D-0582 [2] UNION  
14. 2L-3331 [4] UNION  
15. 4H-6147 [2] UNION  
16. 3D-6395 [2] HOSE ASSEM. 132 in. (335.3 cm)  
17. 7J-0703 [1] HOSE ASSEM. 140 in. (355.6 cm)  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

Information:

Special Instruction
Installation Of 1U689 Ejector Cylinder Hose Assembly Or 1U408 Ejector Cylinder Group{5305}
Installation Of 1U689 Ejector Cylinder Hose Assembly Or 1U408 Ejector Cylinder Group{5305}
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Installation of Vented Buffer Seal Assembly, U-Cup Seal, and Double Lip Wiper Seal for Hydraulic Cylinders{7562}
Installation of Vented Buffer Seal Assembly, U-Cup Seal, and Double Lip Wiper Seal for Hydraulic Cylinders{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Technical Information Bulletin
Surface Finishes of Cylinder Bores{7562}
Surface Finishes of Cylinder Bores{7562}
Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}
Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}
Specifications
Load Cylinder<BR> (8J9446)
621, 623 & 627 TRACTORS CUSHION-HITCH
Bowl Cylinder Installation
621B & 627B SCRAPERS HYDRAULIC SYSTEM
Bowl Cylinders<BR> 5J2449, 5J2450
621B & 627B SCRAPERS HYDRAULIC SYSTEM
Apron Cylinders<BR> 5J778
621B & 627B SCRAPERS HYDRAULIC SYSTEM
Ejector Cylinders<BR> 6J9573, 6J9689, 1U408
621B & 627B SCRAPERS HYDRAULIC SYSTEM
Apron Cylinder<BR> (5J778)
621R WHEEL TRACTOR-SCRAPER HYDRAULIC SYSTEM
Bowl Cylinder<BR> (5J2449)
621R WHEEL TRACTOR-SCRAPER HYDRAULIC SYSTEM
Ejector Cylinder<BR> (1U408)
621R WHEEL TRACTOR-SCRAPER HYDRAULIC SYSTEM
Scraper
621R WHEEL TRACTOR-SCRAPER HYDRAULIC SYSTEM
Tool Operating Manual
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
Using the 265-4177, 265-4209 Service Tool Groups to Install Sensors in Position-Sensing Hydraulic Cylinders{0599, 0709, 0738, 1439, 7562, 7562}
Using the 265-4177, 265-4209 Service Tool Groups to Install Sensors in Position-Sensing Hydraulic Cylinders{0599, 0709, 0738, 1439, 7562, 7562}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Reuse And Salvage Guidelines
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Reuse Guideline for Hydraulic Cylinder Position Sensor {5574, 5736}
Reuse Guideline for Hydraulic Cylinder Position Sensor {5574, 5736}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}
HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}
Thermal Spray Procedures for Hydraulic Cylinder Rods{0679, 7562, 7562}
Thermal Spray Procedures for Hydraulic Cylinder Rods{0679, 7562, 7562}
Contamination Control Guidelines
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Applied Failure Analysis
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Bench Test Procedures
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Disassembly and Assembly
Apron Cylinder
621R WHEEL TRACTOR-SCRAPER VEHICLE SYSTEMS
Bowl Lift Cylinders
621R WHEEL TRACTOR-SCRAPER VEHICLE SYSTEMS
Ejector Cylinder
621R WHEEL TRACTOR-SCRAPER VEHICLE SYSTEMS
Apron Cylinder
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Bowl Lift Cylinders
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Ejector Cylinder
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Cushion Hitch Load Cylinder
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Push-Pull Cylinder
621 B & 627B TRACTOR-SCRAPER VEHICLE SYSTEMS
Service Magazine
Cover For Protection Of Fittings On Bowl Lift Cylinders{5057,6207}
1977/03/28
Improvements Have Been Made To Ejector Lines Group And Hydraulic Control Arrangement{5057,5305,6203}
1979/12/10
New U-Cup Seal And Spacer(s) Replace Cylinder Rod Packing Seal {5101,5102,5103,5104,5213,5223,5229,5265}
1996/06/10
New Assembly Instructions for Rod Seals on Hydraulic Cylinders are Available {7562}
2001/09/04
Correctly Assembling the Buffer Seal Will Prevent Failure of the U-Cup Seals {7562}
2001/07/30
Double Lip Wiper Seals Must Be Installed Properly {7562}
2002/12/09
Procedure Now Available to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
2012/10/04
Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}
Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}
A Rework Procedure Improves the Seal Assembly Performance in Hydraulic Cylinders on Cat Products {7562}
2010/04/30

Caterpillar Parts SIS Catalog 621B :

BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
5J-2450 BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
5J-2449 BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
5J-2450 BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
5J-2449 BOWL CYLINDER GROUP--R.H.,BOWL CYLINDER GROUP--L.H.
8J-7891 BOWL GP-SCRAPER
BOWL GP-SCRAPER
8J-7891 BOWL GP-SCRAPER
8J-7891 BOWL GP-SCRAPER
BOWL GP-SCRAPER
8J-7891 BOWL GP-SCRAPER
CYLINDER GROUP--R.H.,CYLINDER GROUP--L.H.
5J-2450 CYLINDER GROUP--R.H.,CYLINDER GROUP--L.H.
LINES GP-EJECTOR
8J-7820 LINES GP-EJECTOR
EJECTOR GP
9J-2266 EJECTOR GP
9J-2266 EJECTOR GP
CYLINDER GP
6J-9573 CYLINDER GP
CONTROL GP-BRAKE
8J-7930 CONTROL GP-BRAKE
8J-7930 CONTROL GP-BRAKE
8J-7930 CONTROL GP-BRAKE

Truck sale:

Caterpillar 621B
 
Caterpillar 621B
- Road Scraper
MACALLISTER MACHINERY CO., INC
Caterpillar 621B
 
Caterpillar 621B
- Road Scraper
MACALLISTER MACHINERY CO., INC
Caterpillar 621B
 
Caterpillar 621B
- Road Scraper
FINNING CANADA
Caterpillar 621B, Road Scraper, Construction
46,500 
Caterpillar 621B, Road Scraper, Construction
- Road Scraper
QUINN COMPANY
Caterpillar 621B, Road Scraper, Construction
46,500 
Caterpillar 621B, Road Scraper, Construction
- Road Scraper
QUINN COMPANY
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