C1.1, C1.5 and C2.2 Engines for Caterpillar Built Machines Caterpillar

Installation Procedure

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Always wear protective gloves when handling parts that have been heated.

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Illustration 1	g01372138
Typical example

1. Thoroughly clean the flywheel housing. Inspect the crankshaft rear seal for leaks. If there are any oil leaks refer to Disassembly and Assembly, "Crankshaft Rear Seal - Remove".

2. If necessary, perform the following procedure to install the ring gear (2) to the flywheel (1).

   1. Identify the orientation of the new ring gear in order to install the ring gear correctly onto the flywheel.

      Note: The chamfered side of the gear teeth (3) must face toward the starting motor when the flywheel is installed. This will ensure the correct engagement of the starting motor.

   2. Heat the flywheel ring gear (2) in an oven to a maximum temperature of 150°C (302°F) prior to installation.

      Note: Do not use a torch to heat the ring gear.

   3. Ensure that the orientation of the ring gear (2) is correct and quickly install the ring gear onto the flywheel (1).
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   Illustration 2	g01126937
   Typical example

3. Install a tooling (A) and a suitable lifting device to the flywheel (1).

4. Install two M10 x 1.25 guide studs opposite each other in the end of the crankshaft.

5. Position the flywheel (1) onto the two guide studs.

   On three cylinder engines that have a roll pin, ensure that the roll pin is installed to the crankshaft and that the roll pin is free from damage. Align the hole in the flywheel with the roll pin in the crankshaft.

6. Install the setscrews (4) that fasten the flywheel to the crankshaft.

7. Remove the two guide studs and install the two remaining setscrews (4) in the flywheel.

8. Use a suitable tool to prevent the flywheel (1) from rotating. Tighten the setscrews (4) to a torque of 73.5 N·m (54.2 lb ft).

9. Remove tooling (A) and the lifting device from the flywheel.