SENSOR GP-TEMPERATURE 4493985 - Caterpillar

Do not turn the crankshaft or the camshaft while the camshaft gear is removed. If the rear gear group is not correctly timed during installation, interference can occur between the pistons and the valves, resulting in damage to the engine.
Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change". Note: If the catalyst is not mounted on top of the engine, proceed to Step 4.
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Remove bolts (1) and remove brace (2). Repeat this step for the opposite side.
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Remove bolts (3) and remove brace (4). Repeat this step for the opposite side.
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Remove fuel hose assemblies (5). Repeat this step for the opposite side.
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Remove bolts (6) and position oil filter base (7) out of the way.
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Remove six bolts (8) and position bracket assembly (9) out of the way.
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Remove bolts (10) and remove cover (11).
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Remove bolts (12) and remove damper (13). Repeat this step for the opposite side.
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Remove bolts (14). Remove sealing plate (15) and remove adapter (16). Repeat this step for the opposite side.
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Disconnect tube (17). Repeat this step for the opposite side.
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Remove bolts (18) and remove camshaft gear (19).
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Remove bolts (20). Remove thrust washer (21), adapter (22), and the sealing plate. Repeat this step for the opposite side.
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Overhead view from the rear of the engine.
Remove 13 bolts (24) from cylinder head (23). Repeat this step for the other side.
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Attach Tooling (A) and a suitable lifting device to cylinder head (23). Attach Tooling (B) to the side of cylinder head (23) that is nearest the exhaust ports. The weight of cylinder head (23) is approximately 300 kg (661 lb). Repeat this step for the other side.
Remove ten bolts (26). Repeat this step for the other side.
Remove 16 bolts (25) and remove cylinder head (25). Remove the gaskets, O-ring seals, and the spacer plate. Repeat this step for the opposite side.