CHASSIS AR 4571855 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7574 Link Bracket 2 Start By:
Remove the electric starting motor. Refer to Disassembly and Assembly, "Electric Starting Motor - Remove and Install".
Remove the flywheel. Refer to Disassembly and Assembly, "Flywheel - Remove".
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 Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Support the engine with blocks or with a suitable lifting device on a flat level surface.
Illustration 1 g00541891
Typical example
Remove mounting bolts (1) from the top of flywheel housing (2).
Illustration 2 g00541892
Typical example
Attach Tooling (A) and a suitable lifting device to flywheel housing (2).
Remove mounting bolts (3) that attach the flywheel housing to the cylinder block.
Remove flywheel housing (2). If necessary, hit flywheel housing (2) with a soft faced hammer in order to separate flywheel housing (2) from the cylinder block. The weight of flywheel housing (2) is approximately 32 kg (70 lb). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 138-7574 Link Bracket 2
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Clean the rear face of the cylinder block and the mating surface of the flywheel housing. Inspect the felt seal on the rear flange of the engine oil pan. Replace the felt seal, if necessary. Inspect the dowels in the cylinder block that align the flywheel housing. Replace the dowels, if necessary.
Illustration 3 g00541892
Use Tooling (A) and a suitable lifting device to position flywheel housing (2) on the dowels that are on the cylinder block. The weight of flywheel housing (2) is approximately 32 kg (70 lb).
Install mounting bolts (3).
Illustration 4 g00541891
Typical example
Install mounting bolts (1) that attach flywheel housing (2) to the cylinder block. Tighten the bolts for an aluminum flywheel housing to a torque of 70 N m (52 lb ft).Tighten the cast iron flywheel housing bolts to the following torque: M10 "8.8" ... 44 N m (33 lb ft)M10 "10.9" ... 63 N m (46 lb ft)M12 "8.8" ... 75 N m (55 lb ft)M12 "10.9" ... 115 N m (85 lb ft)
Remove Tooling (A) from the flywheel housing. End By:
Install the flywheel. Refer to Disassembly and Assembly, "Flywheel - Install".
Install the electric starting motor. Refer to Disassembly and Assembly, "Electric Starting Motor - Remove and Install".