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| Illustration 1 | g01151805 |
Location of Gear Pump | |
Gear pump (2) for the brake cooling circuit is located in the compartment behind the operator compartment. The gear pump is mounted on the left steering pump. The steering pump is mounted on the front side of the rear pump drive.
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| Illustration 2 | g01151800 |
Gear pump | |
The heat that is generated by the application of service brakes is removed by a separate flow of hydraulic oil.
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| Illustration 3 | g01151806 |
Gear pump (2) for the brake cooling circuit draws oil from hydraulic tank (1). The oil then flows through oil cooler (3). Check valve (4) for the oil cooler bypass allows the hydraulic oil to bypass the oil cooler. This occurs when the hydraulic oil is cold.
The oil then flows to service brakes (7). Then, the oil flows between the discs and the plates that are within the service brakes in order to absorb the heat that is generated by the friction. The oil then flows out of the service brakes and through brake cooling screens. The brake cooling screens (6) remove any debris that is in the hydraulic oil. This prevents contamination of the oil that is in the cooling circuit.
The cooling oil then flows through check valves (5) to the hydraulic tank. Check valves prevent oil from flowing back through the brake cooling screens.