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| The Radiator side of the engine.
Engines painted Red have been reconditioned by LH Group. The W500 signifies a 500 000 mile warranty.
The large white 'bottle' is an oil filter
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| This is the flywheel end of the engine. The gearbox is connected to this by a cardan shaft.
As can be seen, the engine is not horizontal, but lies at a 10° angle.
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This is the front end of the engine.
The alternator is connected to this end by another shaft.
The pulleys are driven by the camshaft and power the water pump, air compressor and fuel pump.
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| Voith T211r Gearbox
The Gearbox on a 156 is hidden between the Radiator and the Exhaust silencer. The one pictured is under a class 153 unit, and the engine is to the right.
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The T211r "turbo-transmission" has one torque converter and one fluid coupling and speed-stage changes are provided by filling and draining hydraulic circuits. This is done automatically depending on road speed.
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| This is the output end of the gearbox, nearest the bogie. To the left of the output flange is the reversing mechanism.
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| Gmeinder Final Drive
The powered bogie has final drive units on both axles.
The picture shows the inner final drive where it is connected to the gearbox via a cardan shaft. The inner and outer drives are also connected by cardan shafts.
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| Alternator
The alternator lies almost centrally under the vehicle.
It can be seen from the left-hand side through the gap between the auxilliary heater and the engine air filter.
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