RELAY AS 1702237 - Caterpillar

3606 (8RB),
3608 (6MC),
3612 (9RC),
3616 (1PD)Introduction
This instruction is made available to provide the correct procedures for handling, cleaning, assembly, installation and protection of a service replacement crankshaft for Caterpillar 3600 Family engines.If the replacement crankshaft is processed with the same procedures as outlined in this Special Instruction, it can be expected to give good performance during normal operating conditions.All replacement crankshafts must be thoroughly cleaned before installation into a cylinder block.Do not perform any procedure, outlined in this publication, or order any parts until you read and understand the information contained within.Reference: Service ManualRemoval of the Crankshaft from the Shipping Crate
The crankshaft is a precision finished part. Every precaution must be taken while working near or with the crankshaft. Be especially careful when removing the crankshaft from its shipping crate, or when moving it.These precautions are necessary to prevent damage to any surface that can result in a total failure of the crankshaft, or early hour bearing failure. Replacement crankshafts are shipped from the Caterpillar Inc. Parts Department using either one of the two methods that follow:Method No. 1:
* The shipping crate is lined with VCI paper, the crankshaft is coated with a rust preventative and wrapped with clear polyethylene.Method No. 2:
* The shipping crate has a crankshaft, without any rust preventative, sealed inside a VCI clear polyethylene bag. This sealed bag should not be opened until the cylinder block is cleaned, and the crankshaft is ready for installation.All crankshafts are shipped in a wooden crate with supports that protect the crankshaft and keep it from moving around inside the crate.If the crankshaft is shipped using Method No. 1, the crankshaft must be processed using all of the procedures given in this guideline with regard to unpacking, cleaning, inspection and plug installation before the crankshaft is installed in the cylinder block.If the crankshaft is shipped using Method No. 2, it will be necessary to clean the bearing journal surfaces on the crankshaft before the crankshaft can be installed in the cylinder block.The threaded plugs are already installed in the threaded holes at the opening of the drilled oil passages. Remove all plastic plugs from the crankshaft oil passages before crankshaft installation. Put a coat of clean engine oil on all crankshaft surfaces before the crankshaft is installed in the cylinder block.1. Remove only enough of the support blocking from inside the crate to allow the crankshaft to be lifted "straight up".
To prevent damage to the crankshaft, do not turn the crankshaft while it is in the crate.
2. Remove the protective cover from two of the connecting rod journals that are facing "UP".Fold a clean chamois, thick cloth, or sheep hide (with the fleece side toward the journal) around the two connecting rod journals, as shown. This will prevent any damage to the bearing journal surfaces. 3. Use nylon straps and a hoist to remove the crankshaft from the shipping crate.
When the crankshaft is in storage, always protect it with a clean canvas or polyethylene cover.
Crankshaft Cleaning
Always wear protective clothing