BOLT 1D4556 - Caterpillar

Removal Procedure
Start By:
Remove the camshaft gear. Refer to Disassembly and Assembly, "Camshaft Gear - Remove and Install".
Remove the crankshaft front seal and the wear sleeve. Refer to Disassembly and Assembly, "Crankshaft Front Seal - Remove".
Remove the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install".
Remove the fan drive. Refer to Disassembly and Assembly, "Fan Drive - Remove".
Remove the fuel transfer pump. Refer to Disassembly and Assembly, "Fuel Transfer Pump - Remove".
Remove the vibration damper and the pulley. Refer to Disassembly and Assembly, "Vibration Damper and Pulley - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Do not turn the crankshaft or the camshaft while the camshaft gear is removed. If the front gear group is not correctly timed during installation, interference can occur between the pistons and the valves, resulting in damage to the engine.
Illustration 1 g00592550
Typical example
Remove bolts (3) that fasten front plate (2) to front housing (1) .
Illustration 2 g00592633
Typical example
Remove bolts (4), nut (5), and nuts (6) from front housing (1) .
Illustration 3 g00592668
Typical example
Remove front housing (1) .
Illustration 4 g00592672
Typical example
Remove gasket (7) from front plate (2) .