SPRING 4S5854 - Caterpillar

Remove Flywheel
1. Fasten a hoist to the flywheel with tooling (A).2. Remove two of bolts (1) and install two 1"-14 NF guide bolts 11 in. long in their place. Remove the remainder of bolts (1).3. If necessary, install a 5/8"-11 NC forged eyebolts in each side of the flywheel and use a pry bar to remove the flywheel from the pilot on the crankshaft.
TYPICAL EXAMPLE4. Remove flywheel (2) from the engine. The weight of the 3512 Flywheel is 167 kg (370 lb.). The weight of the 3508 Flywheel is 126 kg (280 lb.).Install Flywheel
1. If the flywheel ring gear has damage, a replacement can be made as follows: a) Heat the ring gear to a maximum temperature of 316°C (600°F) and install it on the flywheel so the chamfer of the gear teeth will be toward the starter pinion when the flywheel is installed.2. Install two 1"-14 NF guide bolts 11 in. long in the end of the crankshaft. 3. Fasten a hoist to flywheel (1) with tooling (A) and put it in position on the guide bolts. Make sure the mark on the flywheel is in alignment with the mark on the crankshaft. 4. Put clean engine oil on the threads of bolts (2) and install them to hold the flywheel in place. Tighten bolts (2) to a torque of 1150 30 N m (848 22 lb.ft.).