GOVERNOR GP 3N4078 - Caterpillar

Crankshaft Rear Seal & Wear Sleeve
Start By:a. remove flywheel
Any time the crankshaft seal is removed from the wear sleeve, a new sleeve and seal must be installed as a unit. If the seal is put back on the sleeve, the seal will be damaged.
1. Remove the crankshaft rear seal from the flywheel housing with Tooling (A). 2. Install Tool (C) in the rear seal bore.3. Install Tool (B) between Tool (C) and the wear sleeve. Turn Tool (B) until the edge of the tool makes a flat place (crease) in the wear sleeve. Do this in two or more places until the wear sleeve is loose.4. Remove Tool (C) and the wear sleeve by hand.Install Crankshaft Rear Seal & Wear Sleeve
The crankshaft seal and wear sleeve come as a set and must not be separated from each other at any time. Carefully read Special Instruction, SMHS8508, that is included with each seal and wear sleeve before any handling of the seal group is made.
1. Install the crankshaft rear seal and wear sleeve with Tooling (D) as follows:a. Clean and prepare the crankshaft outside diameter with 4C-9500 Quick Cure Primer. Apply 4C-9507 Retaining Compoundto the crankshaft outside diameter.b. Install locator (3) and the bolts on the rear of the crankshaft (4).c. Put wear sleeve (2) and seal (7) as a unit on locator (3) with the lip of the seal toward the front of the engine.d. Put installer (5) in position on the locator.e. Put clean engine oil on the face of nut (6), and install it on the locator. Tighten the nut until installer (5) bottoms out.f. Remove Tooling (D), and check the wear sleeve and seal for the correct position after installation. For more detailed information regarding the crankshaft rear seal & wear sleeve, see the topic "Crankshaft Seals" in the Specifications Manual.End By:a. install flywheel