Transmission Interface and Mounting R2.8 CM2220 R101B Page 1-6 Section 1 - Installation by Subsystem The R2.8 CM2220 R101B engine has two brackets designed to enable the lifting of the engine and transmission system. These brackets are located on the front and on the rear of the engine, and must not be modified in any way. Use a properly rated hoist and engine lifting fixture, Part Number 3162871, attached to the engine-mounted lifting brackets, to install the engine. Transmission Interface and Mounting (391-002) General Information Figure 1 - Clutch to Flywheel Mounting 1 The flywheel pilot bore is designed to accept a 40 mm [1.57 in] outside diameter (O.D.) bearing.
The flywheel is shown in Figure 1. A quantity of 12 threaded holes are available for attachments of the clutch pressure plate cover. It is recommended to use a quantity of 12 Class 10.8 M8 x 1.25 bolts with a thread engagement such that only one thread protrudes out the back side of the flywheel when the cover is tightened. Torque Value: 33 N•m [ 24 ft-lb ] See Figure 2 for additional dimensions. To buy Cummins Parts and Service Manuals, Training Guides, or Tools go to our website at https://store.cummins.com