CRANKSHAFT AS 1286786 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 138-7575 Link Bracket 2 Start By:
Remove the rocker shaft and the pushrod. Refer to Disassembly and Assembly, "Rocker Shaft and Push Rod - Remove".
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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Refill Capacities and Recommendations".
Illustration 1 g01086750
Remove bolts (1).
Remove plate (2). Note: More than one plate may need to be removed.
Illustration 2 g01086752
Remove shield assemblies (3).
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If necessary, remove the thermocouples from exhaust manifold (6).
Remove bolts (5).
Remove bolts (7) in order to remove clamps (8) from exhaust manifold (6).
Remove exhaust manifold (6) and the seal from cylinder head (4).
Illustration 4 g01086755
Remove bolts (10) in order to remove cover assembly (9) from cylinder head (4).
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Remove gasket (11) and O-ring seals (12) from cylinder head (4).
Illustration 6 g01086759
Remove elbow (15) and the O-ring seals.
Remove elbow (16) and the O-ring seals. Note: Remove elbow (16) in order to gain access to bolts (14).
Remove bolts (14) in order to disconnect adapter assembly (13).
Illustration 7 g01086760
Remove the gasket from cylinder head (4).
Remove bolts (17) from cylinder head (4).
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Attach Tooling (A) and a suitable lifting device to cylinder head (4). The weight of cylinder head (4) is approximately 50 kg (110 lb).
Remove bolts (18).
Remove cylinder head (4).
Illustration 9 g01086764
Remove head gasket (19), seals (20), seals (21), and O-ring seal (23) from spacer plate (22).
Remove spacer plate (22).
Illustration 10 g01086765
Remove O-ring seal (25) and gasket (24) from the engine block.