4B8383 LOCK Caterpillar parts
120, 120B, 12E, 140B, 14E
Rating:
Alternative (cross code) number:
CA4B8383
4B-8383
4B8383
CA4B8383
4B-8383
4B8383
Weight: 0.010 pounds 0 kg.
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CTP 4B8383 Lock for Heavy Equipment
CTP Lock Only || Sold in each || Easy in-and-out fit
CTP Lock Only || Sold in each || Easy in-and-out fit
CTP 4B8383 Lock for Heavy Equipment
CTP Lock Only || Sold in each || Easy in-and-out fit
CTP Lock Only || Sold in each || Easy in-and-out fit
$7.51
26 Oct 2023
Amazon.com
CTP 4B8383 Lock for Heavy Equipment
CTP Lock Only || Sold in each || Easy in-and-out fit
CTP Lock Only || Sold in each || Easy in-and-out fit
Number on catalog scheme:
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Information:
Disassembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1857 Retaining Ring Pliers 1
B 1U-6683 Ring Expander 1 Start By:
Remove the pistons and the connecting rods. Refer to Disassembly and Assembly, "Piston and Connecting Rods - Remove" for the correct procedure. Note: Make a temporary mark on the components of the piston and connecting rod assembly. Making temporary marks will ensure that the components of each piston and connecting rod assembly can be reinstalled in the original cylinder. Mark the underside of the piston on the front pin boss. Do not interchange components.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01341306
Illustration 2 g02383077
Remove bolts (12) and connecting rod cap (11) from connecting rod (6). Discard the bolts. Note: Fracture split connecting rods should not be left without the connecting rod caps installed. After the disassembly procedure for the piston and connecting rod is completed, carry out the assembly procedure and the installation procedure as soon as possible. Refer to Disassembly and Assembly, "Piston and Connecting Rods - Assemble" and Disassembly and Assembly, "Piston and Connecting Rods - Install" for the correct procedure.
Remove lower bearing shell (10) from connecting rod cap (11). Remove upper bearing shell (9) from connecting rod (6). Keep the bearing shells together.
Place the piston and connecting rod assembly on a suitable surface with the connecting rod upward. Use Tooling (A) in order to remove circlips (5). Note: Note the position of forged Mark (X). The forged mark is for the purposes of correct orientation of the connecting rod assembly and piston assembly.
Remove piston pin (7) and connecting rod (6) from piston (4). Note: If the piston pin cannot be removed by hand, heat the piston to a temperature of 45 5 °C (113 9 °F). Do not use a torch to heat the piston. Note the orientation of connecting rod (6) and piston (4).
Place the piston on a suitable surface with the crown upward. Use Tooling (B) in order to remove compression ring (1) and compression ring (2), and oil control ring (3) from piston (4). Note: Make temporary identification marks to Identify the position and orientation of compression ring (1) and compression ring (2), and oil control ring (3).
Removal of the piston pin bushing in the connecting rod must be carried out by personnel with the correct training. Also special machinery is required. For more information refer to your authorized Caterpillar dealer.
Inspect the connecting rod for wear and damage. If necessary, replace connecting rod (6) or replace bushing (8) for piston pin (7). Note: If the connecting rod or the bushing for the piston pin are replaced, refer to Specifications, "Connecting Rods" for more information.
Repeat Step 1 through Step 6 in order to disassemble the remaining pistons and connecting rods.
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-1857 Retaining Ring Pliers 1
B 1U-6683 Ring Expander 1 Start By:
Remove the pistons and the connecting rods. Refer to Disassembly and Assembly, "Piston and Connecting Rods - Remove" for the correct procedure. Note: Make a temporary mark on the components of the piston and connecting rod assembly. Making temporary marks will ensure that the components of each piston and connecting rod assembly can be reinstalled in the original cylinder. Mark the underside of the piston on the front pin boss. Do not interchange components.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01341306
Illustration 2 g02383077
Remove bolts (12) and connecting rod cap (11) from connecting rod (6). Discard the bolts. Note: Fracture split connecting rods should not be left without the connecting rod caps installed. After the disassembly procedure for the piston and connecting rod is completed, carry out the assembly procedure and the installation procedure as soon as possible. Refer to Disassembly and Assembly, "Piston and Connecting Rods - Assemble" and Disassembly and Assembly, "Piston and Connecting Rods - Install" for the correct procedure.
Remove lower bearing shell (10) from connecting rod cap (11). Remove upper bearing shell (9) from connecting rod (6). Keep the bearing shells together.
Place the piston and connecting rod assembly on a suitable surface with the connecting rod upward. Use Tooling (A) in order to remove circlips (5). Note: Note the position of forged Mark (X). The forged mark is for the purposes of correct orientation of the connecting rod assembly and piston assembly.
Remove piston pin (7) and connecting rod (6) from piston (4). Note: If the piston pin cannot be removed by hand, heat the piston to a temperature of 45 5 °C (113 9 °F). Do not use a torch to heat the piston. Note the orientation of connecting rod (6) and piston (4).
Place the piston on a suitable surface with the crown upward. Use Tooling (B) in order to remove compression ring (1) and compression ring (2), and oil control ring (3) from piston (4). Note: Make temporary identification marks to Identify the position and orientation of compression ring (1) and compression ring (2), and oil control ring (3).
Removal of the piston pin bushing in the connecting rod must be carried out by personnel with the correct training. Also special machinery is required. For more information refer to your authorized Caterpillar dealer.
Inspect the connecting rod for wear and damage. If necessary, replace connecting rod (6) or replace bushing (8) for piston pin (7). Note: If the connecting rod or the bushing for the piston pin are replaced, refer to Specifications, "Connecting Rods" for more information.
Repeat Step 1 through Step 6 in order to disassemble the remaining pistons and connecting rods.
Caterpillar parts catalog:
Parts lock Caterpillar catalog:
120B, 120G, 120H, 120K, 120K 2, 12F, 12G, 12H, 130G, 135H, 140B, 140G, 140H, 140K, 14E, 160G, 160H, 160K
120B, 12E, 12F, 140, 140B, 14E
120, 120B, 12E, 12F, 140, 140B, 14E
120B, 12E
120, 120B, 12E, 12F, 140B, 14E
120B, 12E, 12F, 140, 140B, 14E
120B, 12E, 12F, 140B, 14E
120B, 12E, 12F, 140B, 14E
120B, 12E, 12F, 140, 140B, 14E
120B, 12E, 12F, 140, 140B, 14E
120, 120B, 12E, 140, 140B
120B, 12F, 140B, 14E
2G7935
LOCK ASSEM.
120G
120G
2G7918
LOCK ASSEM.
130G
130G
2G7917
LOCK ASSEM.
120G, 12G, 130G
120G, 12G, 130G
2G7894
LOCK
14G
14G
2G7892
LOCK
14G
14G
2Y3791
LOCK
120B, 140B
120B, 140B
5H3534
LOCK
12E
12E
2F5950
LOCK
12E
12E
4H7592
LOCK
12E
12E
8W9073
LOCK-DOOR
140B
140B
4B8320
LOCK
12E
12E
5T3753
LOCK ASSEM.
12G, 130G
12G, 130G