CYLINDER BLOCK GP 1N3576 - Caterpillar

3600 (8RB, 6MC, 9RC, 1PD) Family Of Engines, G3600 (3XF, 4WF, 1YG, 4CG) Family Of EnginesDescription of Change: New cast iron adapters and steel wear sleeve are used on the above engines. This steel sleeve can be easily changed when required due to normal wear. The new adapters and sleeve eliminates the need to resurface the former adapter's seal face. The wear sleeve can also be changed without removing the new adapter from the engine. The new adapters and wear sleeve provide improved serviceability. Adaptable To: Illustration 1 and Chart A identify the new components in seal groups used with 7W-0027, 7W-0127, and 1W-0864 Damper Groups [762 mm (30 in) diameter] on all 3608 and 3612 Engines and many 3616 Engines. The new 106-2033 Adapter and 106-2027 Sleeve replaces the former 7W-9035 and 7W-9037 Adapters. Illustration 2 and Chart B identify the new components used with 1W-0791 Damper Group [597 mm (23.5 in) diameter] on all 3606 Engines and some 3616 Engines. The new 102-4112 Adapter and 106-2027 Sleeve replaces the former 7W-9036 Adapter Assembly.
Before installation, the wear sleeve must be pressed onto the adapter until the sleeve bottoms against the adapter shoulder. The arrow on the outside of the new sleeve must be pointing in the direction of engine rotation.
Illustration 1. Front crankshaft adapter and sleeve on 762 mm (30.0 in) damper. Crankshaft (1). Gear (2). 106-2033 Adapter (3). 106-2027 Sleeve (4). Hydrodynamically grooved seal (5).
Illustration 2. Front crankshaft adapter and sleeve on 597 mm (23.5 in) damper. Crankshaft (1). Gear (2). 102-4112 Adapter (6). 106-2027 Sleeve (4). Hydrodynamically grooved seal (5).