BOOM AS 1937399 - Caterpillar

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Remove bolts (18).
Remove bracket assembly (19).
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Disconnect harness assemblies (20) from engine monitoring control (21).
Remove bolts (22).
Remove engine monitoring control (21) and bracket (23).
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Remove bolts (24).
Position bracket (25) out of the way.
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Remove brackets (26).
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Remove timing pointer (26A).
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Attach Tooling (C) and a suitable lifting device to flywheel (28). The weight of flywheel (28) is approximately 172 kg (380 lb).
Remove two bolts (27). Install Tooling (F).
Remove remaining bolts (27).
Remove flywheel (28).
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Remove cover assemblies (29).
Remove the crankshaft rear seal and wear sleeve (30). Refer to Disassembly and Assembly, "Crankshaft Rear Seal and Wear Sleeve - Remove".
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Remove speed sensor (31).
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Remove bolt (32) and timing ring (33).
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Remove bolt (34) and plate (35) from camshaft drive gear (36).
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Place the three washers of Tooling (D) behind plate (35) and install the bolt and plate (35) to camshaft drive gear (36).
Do not apply more than 51675 kPa (7500 psi) pressure to the hydraulic puller. The adapters are rated at 6 1/2 tons each and the hydraulic puller is rated at 17 tons at 68900 kPa (10000 psi). If too much pressure is applied, the gear may be damaged.
Install Tooling (D) on camshaft drive gear (36). Apply 51675 kPa (7500 psi) to the puller. Use a hammer to tap the head of the puller screw on Tooling (D). This will break camshaft drive gear (36) free from the camshaft.
Repeat Step 38 through Step 39 for the remaining gear.
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Attach Tooling (E) and a suitable lifting device to flywheel housing (37). The weight of flywheel housing (37) is approximately 245 kg (540 lb).
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Remove bolts (38), bolts (39), bolts (41), bolts (42), bolts (43), and bolts (44).
Remove flywheel housing (37).
Remove gasket (40) from flywheel housing (37).
After removing flywheel housing (37), clean the mating surface of the cylinder block and the mating surface of the flywheel housing with Tooling (G). If necessary, use a gasket scraper and a solvent in order to remove any residual gasket material. Both mating surfaces must be clean, dry, and free of any oil before installation.