RING-PISTON 2688867 - Caterpillar

Illustration 3 g02345486
Place Mark (Y) at all four locations as shown. This action will aid in the installation of the lines group.
Loosen clamp assemblies (8) and (10) and discard the clamp assemblies. Remove lines group (9) .
Illustration 4 g02345541
Note: Refer to Special Instruction, REHS1728, "Application Guideline for the Bellows" for additional information on handling the bellows if the machine is equipped.
Remove both clamp assemblies (12) . Remove bellows (13) and position elbow assemblies (11) and (14) aside. Discard clamp assemblies (12) and bellows (13) .
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Loosen clamp assembly (15) . Remove two nuts (16) and remove elbow assembly (17) .
Loosen clamp assembly (23) and remove bolts (20) and (18) . Remove tube assembly (19) .
Remove bolts (22) and remove elbow assembly (21) .
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Remove clamp assemblies (15) and separate elbow (17) from bellows (22) . Discard clamp assemblies (15) and bellows (24) after removal.
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Remove clamp assembly (25) and disconnect hose assembly (29) .
Remove tube assembly (28) .
Disconnect tube assemblies (26) and (27) .
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View from the rear of the engine
Disconnect fitting (30) . Remove bolts (31) and remove tube assembly (32) .
Loosen clamp assemblies (33) and (35) . Remove tube assembly (34) .
Illustration 9 g02130322
Note: NRS cooler clamp assemblies (9) are a one time use only. Discard used clamp assemblies (9) .
Remove and discard clamp assemblies (36) . Use two people in order to remove exhaust cooler (37) . The weight of exhaust cooler (37) is approximately 18 kg (40 lb).Installation Procedure
Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.
Install the exhaust cooler (37) in the reverse order.
Illustration 10 g03339899
Note: NRS cooler clamp assemblies (9) are a one time use only. Discard used clamp assemblies (9) .
When installing new clamp assemblies (36) , ensure the rounded edges of clamp spacers (36a) are oriented as shown.
Tighten new clamp assemblies (36) to a torque of 40 5 N m (30 4 lb ft).
Tighten clamp assembly (33) to a torque of 8.5 2 N m (75 18 lb in).
Illustration 11 g02346038
Position the new bellows (24) , new clamp assemblies (15) , and elbow (17) into position. Apply Tooling (A) to the threads of clamp assemblies (15) . Ensure that the flow indicator on the bellows is in the position that is shown in the above illustration. Tighten clamp assemblies (15) to a torque of 7.5 2 N m (66 18 lb in).
Apply Tooling (A) on the threads of the studs and the threads on new nuts (16) . Tighten the new nuts (16) to a torque of 70 5 N m (52 4 lb ft).
Tighten clamp assemblies (23) to a torque of 20 2 N m (177 18 lb in).
Illustration 12 g02345541
Position new clamp assemblies (12) onto bellows (13) . Position elbow assemblies (11) and (14) .
Tighten clamp assemblies (12) to a torque of 8.5 2 N m (75 18 lb in).
Illustration 13 g02125717
Position new bellows (6) , new clamp assemblies (5) , and