9N2045 BACKPLATE ASSEM. Caterpillar parts
3408, D5B
Rating:
Alternative (cross code) number:
CA9N2045
9N-2045
9N2045
CA9N2045
9N-2045
9N2045
Weight: 0.28 pounds 0 kg.
INDUSTRIAL ENGINE, TRUCK ENGINE,
Compatible equipment models: 9N2045:
Number on catalog scheme:
12
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Information:
Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty.
A 439-3940 Bracket As 2
B 1P-1861 Retaining Ring Pliers 1
C 271-0504 Piston Ring Expander 1
D 255-8897 Piston Ring Compressor 1
E 510-8644 Piston Ring Groove Gauge 1
327-8645 Piston Ring Groove Gauge 1
327-8646 Piston Ring Groove Gauge 1 Note: Inspect all O-rings, seals, and gaskets for wear and damage. Replace if necessary.
Illustration 1 g06184086
Use Tooling (E) for the ring grooves. Use Tooling (C) and install piston rings (8) onto piston (7). Install the top ring with the side that is marked UP 1 toward the top of the piston. Install the intermediate ring with the side that is marked UP 2 toward the top of the piston.
Install oil ring spring wire and insert pin and install outer ring (9). The oil ring spring ends must be assembled 180 degrees from the ring end gap. After the rings have been installed, rotate the rings so that the end gaps are located 120 degrees from each other. Oil ring end gap must be in the pin bore plane.
Illustration 2 g06177863
Coat connecting rod (6) and wrist pin (5) with clean engine oil. Install connecting rod (6) into piston (7). Install wrist pin (5) into piston (7) and connecting rod (6). Use Tooling (B) to install both retaining rings (4). Position retaining rings (4) with the opening toward the bottom of the piston.
Illustration 3 g06177855
Install O-ring seals (3) onto liner (2).Note: The liner O-rings are not compatible with petroleum-based products. Ensure that the liner is free of rust preventative and the liner O-rings are only lubricated with a soapy solution. Failure to do so will result in O-ring degradation and external coolant leaks.
Illustration 4 g01240871
Coat piston (7) and the piston rings (8) with clean engine oil. Install Tooling (D) onto piston (6). Tighten Tooling (D) to compress the piston rings.
Illustration 5 g01240872
Coat inside of the liner (2) with clean engine oil. Attach Tooling (A) and a suitable lifting device onto the connecting rod. The weight of the connecting rod and the piston assembly is approximately 31 kg (69 lb). Install the connecting rod and the piston assembly into the bottom side of liner (2).
Illustration 6 g01520432
Remove Tooling (D) from liner (2).Note: Do not permit the piston to go past the top dead center position. If the piston goes past the top dead center position, the piston rings will lock into the cuff ring bore.End By:
Install the pistons, liners, and connecting rods. Refer to Disassembly and Assembly, "Pistons, Liners, and Connecting Rods - Install".
Table 1
Required Tools
Tool Part Number Part Description Qty.
A 439-3940 Bracket As 2
B 1P-1861 Retaining Ring Pliers 1
C 271-0504 Piston Ring Expander 1
D 255-8897 Piston Ring Compressor 1
E 510-8644 Piston Ring Groove Gauge 1
327-8645 Piston Ring Groove Gauge 1
327-8646 Piston Ring Groove Gauge 1 Note: Inspect all O-rings, seals, and gaskets for wear and damage. Replace if necessary.
Illustration 1 g06184086
Use Tooling (E) for the ring grooves. Use Tooling (C) and install piston rings (8) onto piston (7). Install the top ring with the side that is marked UP 1 toward the top of the piston. Install the intermediate ring with the side that is marked UP 2 toward the top of the piston.
Install oil ring spring wire and insert pin and install outer ring (9). The oil ring spring ends must be assembled 180 degrees from the ring end gap. After the rings have been installed, rotate the rings so that the end gaps are located 120 degrees from each other. Oil ring end gap must be in the pin bore plane.
Illustration 2 g06177863
Coat connecting rod (6) and wrist pin (5) with clean engine oil. Install connecting rod (6) into piston (7). Install wrist pin (5) into piston (7) and connecting rod (6). Use Tooling (B) to install both retaining rings (4). Position retaining rings (4) with the opening toward the bottom of the piston.
Illustration 3 g06177855
Install O-ring seals (3) onto liner (2).Note: The liner O-rings are not compatible with petroleum-based products. Ensure that the liner is free of rust preventative and the liner O-rings are only lubricated with a soapy solution. Failure to do so will result in O-ring degradation and external coolant leaks.
Illustration 4 g01240871
Coat piston (7) and the piston rings (8) with clean engine oil. Install Tooling (D) onto piston (6). Tighten Tooling (D) to compress the piston rings.
Illustration 5 g01240872
Coat inside of the liner (2) with clean engine oil. Attach Tooling (A) and a suitable lifting device onto the connecting rod. The weight of the connecting rod and the piston assembly is approximately 31 kg (69 lb). Install the connecting rod and the piston assembly into the bottom side of liner (2).
Illustration 6 g01520432
Remove Tooling (D) from liner (2).Note: Do not permit the piston to go past the top dead center position. If the piston goes past the top dead center position, the piston rings will lock into the cuff ring bore.End By:
Install the pistons, liners, and connecting rods. Refer to Disassembly and Assembly, "Pistons, Liners, and Connecting Rods - Install".
Caterpillar parts catalog:
Parts backplate Caterpillar catalog:
3306, 637D
2666531
BACKPLATE AS
TH355B, TH460B, TH560B, TH580B, THP10 II
TH355B, TH460B, TH560B, TH580B, THP10 II
245D, D8L, D9N, D9R
518, 950
9N6231
BACKPLATE AS
3208
3208
1W4466
BACKPLATE AS
231D, 3208, 613C, FB221
231D, 3208, 613C, FB221
1255378
BACKPLATE AS
D350E, G3516
D350E, G3516