Cooling System

2.DESCRIPTION

1.The Cooling System is a closed type system which permits operation at extreme angles without loss of coolant through the overflow ripe and higher engine coolant temperature without boiling.

NOTE: The use of radiator caps with pressure relief valves allow the cooling system to operate at higher pressures. Higher pressures raise the boiling point of the coolant. The radiator cap relief valve is set at 0.9 Kg/cm 2 (13 PSI)

For satisfactory operation of a closed Cooling System, extra care must be taken to ensure that all connections are water tight.

The Cooling Functions as follows :-

The Radiator forms the heart of the Cooling System. The Coolant Water in the Radiator flows down through tubes to Radiator bottom tank. The Coolant is drawn from the bottom tank of the Radiator by the Engine’s Water Pump which delivers the Coolant to the Cylinder Block. As the Coolant enter the Cylinder Block, it travels through cored water passages in the Cylinder Block absorbing the heat from the Cylinder Walls. The Coolant then flows into the Cylinder Head Water Jacket and to the Nozzle Tip Area. This flow within the Cylinder head Water Jacket provides sufficient Cooling at maximum temperature Cooling Points. The Coolant continues to flow through the Cylinder Head to the Thermostat. The thermostat is located at the front of the Cylinder Head in Thermostat Housing which is outlet of Engine.

If the Thermostat is closed, a recirculating bypass is provided, allowing a portion of the Coolant to recirculate from the Cylinder Head to Cylinder Block for faster warm up.

When the Thermostat is open, the hot Coolant delivered from the outlet connection of the Thermostat Manifold to the Top Tank of the Radiator, the hot water from Top Tank passes through the numerous tubes connected to the bottom tank to be circulated in the continuous process of Cooling. The tubes along with the fins which are exposed to the Cooler Air Temperature. The effect (Cooler Air) is increased by the draft produced by the fan as well as the air stream caused by the moving Tractor. This cycle is repeated to keep the Engine at a desired optimum/ working temperature.

A.Alternator Mounting

B.Alternator

C.Adjusting Bolt

D.Adjusting Bracket