4392648 SEAL Caterpillar parts
735B, 740B
Rating:
Alternative (cross code) number:
CA4392648
439-2648
4392648
CA4392648
439-2648
4392648
Weight: 0.07 pounds 0 kg.
ARTICULATED TRUCK, EJECTOR TRUCK,
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This part in 2 request:
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2021-04-28
2017-02-11
Information:
Assembly Procedure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     6V-6192     Pliers     1    
B     7M-3978 (1)
7B-7974 (2)     Piston Ring Expander Gp     1    
C     5P-8639     Hydraulic Press (Connecting Rod Bearing)     1    
8F-0024 Hose Assembly     1    
1P-2375 Connecting Coupler     1    
1P-2376 Connecting Coupler     1    
5P-8651 Spacer     1    
5P-8649 Adapter     1    
5P-8650 Bushing Adapter     1    
9U-6600 Hydraulic Pump     1    
( 1 ) C15
( 2 ) C18Note: Prior to removal from the engine, the pistons and connecting rod assemblies were marked. The components must be reassembled together. The components must be installed in the original location in the engine. Do not interchange any of the components.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01018268
Illustration 2 g01017742
Use Tooling (C) to remove the old bearing and install the new bearing (7) at the same time. The adapter of Tooling (C) should make full contact with the surfaces of connecting rod (6) .Note: Orient the bearing joint within 5 degrees of either Location (X) .
The connecting rod must be heated for the installation of the piston pin bearing. Do not use a torch.
Raise the temperature of connecting rod (6) along Length (Y) . (Y) Maximum Length for heating the connecting rod ... 93 mm (3.7 inch)
Allow the connecting rod and the bearing to cool to room temperature.
Use a pin boring machine to machine the bore of bearing (7) to the correct diameter.Diameter of bearing bore ... 60.035 0.008 mm (2.3636 0.0003 inch)
Illustration 3 g01017728
Position the spring for the oil control ring in the oil ring groove in the piston body assembly.
Position oil control ring (3) over the spring. Position the oil control ring so that the gap is 180 degrees from the joint in the spring. Install the oil control ring on the piston with Tooling (B) .
Use Tooling (B) to install intermediate piston ring (2) with the side that has the identification "UP-2" toward the top of the piston.
Use Tooling (B) to install top piston ring (1) with the side that has the identification "UP-1" toward the top of the piston.
Position piston rings (1) , (2) , and (3) so the gaps are 120 degrees from each other.
Check the clearance between the ends of piston rings (1) , (2) , and (3) . Refer to the Specifications Manual, "Pistons And Rings" for the specifications.
Put piston body assembly (4) in position on connecting rod (6) . Apply clean engine oil to connecting rod pin (8) and install connecting rod pin (8) . Install pin retainer (5) with Tooling (A) . Make sure that pin retainers (5) are fully seated in the grooves of piston body assembly (4) .
Install connecting rod bearings (9) in connecting rod (6) and connecting rod cap (10) . Make sure
Table 1
Required Tools    
Tool    Part Number    Part Description    Qty    
A     6V-6192     Pliers     1    
B     7M-3978 (1)
7B-7974 (2)     Piston Ring Expander Gp     1    
C     5P-8639     Hydraulic Press (Connecting Rod Bearing)     1    
8F-0024 Hose Assembly     1    
1P-2375 Connecting Coupler     1    
1P-2376 Connecting Coupler     1    
5P-8651 Spacer     1    
5P-8649 Adapter     1    
5P-8650 Bushing Adapter     1    
9U-6600 Hydraulic Pump     1    
( 1 ) C15
( 2 ) C18Note: Prior to removal from the engine, the pistons and connecting rod assemblies were marked. The components must be reassembled together. The components must be installed in the original location in the engine. Do not interchange any of the components.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01018268
Illustration 2 g01017742
Use Tooling (C) to remove the old bearing and install the new bearing (7) at the same time. The adapter of Tooling (C) should make full contact with the surfaces of connecting rod (6) .Note: Orient the bearing joint within 5 degrees of either Location (X) .
The connecting rod must be heated for the installation of the piston pin bearing. Do not use a torch.
Raise the temperature of connecting rod (6) along Length (Y) . (Y) Maximum Length for heating the connecting rod ... 93 mm (3.7 inch)
Allow the connecting rod and the bearing to cool to room temperature.
Use a pin boring machine to machine the bore of bearing (7) to the correct diameter.Diameter of bearing bore ... 60.035 0.008 mm (2.3636 0.0003 inch)
Illustration 3 g01017728
Position the spring for the oil control ring in the oil ring groove in the piston body assembly.
Position oil control ring (3) over the spring. Position the oil control ring so that the gap is 180 degrees from the joint in the spring. Install the oil control ring on the piston with Tooling (B) .
Use Tooling (B) to install intermediate piston ring (2) with the side that has the identification "UP-2" toward the top of the piston.
Use Tooling (B) to install top piston ring (1) with the side that has the identification "UP-1" toward the top of the piston.
Position piston rings (1) , (2) , and (3) so the gaps are 120 degrees from each other.
Check the clearance between the ends of piston rings (1) , (2) , and (3) . Refer to the Specifications Manual, "Pistons And Rings" for the specifications.
Put piston body assembly (4) in position on connecting rod (6) . Apply clean engine oil to connecting rod pin (8) and install connecting rod pin (8) . Install pin retainer (5) with Tooling (A) . Make sure that pin retainers (5) are fully seated in the grooves of piston body assembly (4) .
Install connecting rod bearings (9) in connecting rod (6) and connecting rod cap (10) . Make sure
Caterpillar parts catalog:
Parts seal Caterpillar catalog:
1672199
SEAL AS-BUFFER
14M, 735, 735B, 740, 740B, 906, 906H, 906H2, 907H, 907H2, 908H, 908H2, D350E II, D400E II
14M, 735, 735B, 740, 740B, 906, 906H, 906H2, 907H, 907H2, 908H, 908H2, D350E II, D400E II
9D6584
SEAL-LIP TYPE
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 14...
120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 14...
2239743
SEAL-LIP TYPE
24H, 24M, 735, 735B, 740, 740B, 773G, 773G OEM, 775G, 775G OEM, 776C, 776D, 777D, 777F, 777G, 784B, 784C, 785B, 785C, 785D, 789B, 789C, 793B, 854G, 854K, 992G, 992K, 993K
24H, 24M, 735, 735B, 740, 740B, 773G, 773G OEM, 775G, 775G OEM, 776C, 776D, 777D, 777F, 777G, 784B, 784C, 785B, 785C, 785D, 789B, 789C, 793B, 854G, 854K, 992G, 992K, 993K
1378117
SEAL-RING
735, 735B, 740, 740B, 770, 770G, 770G OEM, 772, 772G, 772G OEM, D350E II, D400E II
735, 735B, 740, 740B, 770, 770G, 770G OEM, 772, 772G, 772G OEM, D350E II, D400E II
1378119
SEAL-RING
735, 735B, 740, 740B, 770, 770G, 770G OEM, 772, 772G, 772G OEM, AD30, D350E II, D400E II
735, 735B, 740, 740B, 770, 770G, 770G OEM, 772, 772G, 772G OEM, AD30, D350E II, D400E II
6W4310
SEAL-O-RING
735, 735B, 740, 740B, 770G, 770G OEM, 772, 772G, 772G OEM, D350E II, D400E II
735, 735B, 740, 740B, 770G, 770G OEM, 772, 772G, 772G OEM, D350E II, D400E II
2934503
SEAL-LIP TYPE
725, 725C, 730, 730C, 735, 735B, 740, 740B
725, 725C, 730, 730C, 735, 735B, 740, 740B
3634454
SEAL GP-HEAVY DUTY DUAL FACE
735, 735B, 740, 740B
735, 735B, 740, 740B
3634455
SEAL-O-RING
735, 735B, 740, 740B
735, 735B, 740, 740B
8D3971
SEAL-RING
16G, 16H, 16H NA, 735, 735B, 740, 740B
16G, 16H, 16H NA, 735, 735B, 740, 740B
3097664
SEAL GP-DUO-CONE
735, 735B, 740, 740B
735, 735B, 740, 740B
4B5432
SEAL-LIP TYPE
735, 735B, 740, 740B
735, 735B, 740, 740B
3509189
SEAL-DUST
120M 2, 12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 160M 2, 160M 3, 160M 3 AWD, 735B, 740B
120M 2, 12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 160M 2, 160M 3, 160M 3 AWD, 735B, 740B
3509186
SEAL-DUST
120M 2, 12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 160M 2, 160M 3, 160M 3 AWD, 735B, 740B, AP1000E, AP1055E, BG1000E, BG1055E
120M 2, 12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 160M 2, 160M 3, 160M 3 AWD, 735B, 740B, AP1000E, AP1055E, BG1000E, BG1055E
2577097
SEAL
725C, 730C, 735B, 740B
725C, 730C, 735B, 740B
4171541
SEAL
725C, 730C, 735B, 740B
725C, 730C, 735B, 740B
2228450
SEAL
735B, 740B
735B, 740B
3750095
SEAL AS
735B, 740B
735B, 740B
3844371
SEAL-U-CUP
773G OEM
773G OEM
3918292
SEAL
793F CMD
793F CMD
3558385
SEAL
793F CMD
793F CMD
3558394
SEAL
793F CMD
793F CMD
3441792
SEAL
793F-XQ
793F-XQ
3524656
SEAL
793F AC, 793F-XQ, 797F
793F AC, 793F-XQ, 797F