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Hydraulic System Overheating
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Low hydraulic oil level
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Check hydraulic oil level and add if necessary. (See Check Hydraulic System Oil Level in Maintenance-Every 10 Hours or Daily.)
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Wrong oil (wrong viscosity, oil too thin)
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Inspect hydraulic oil. (See Fuels and Lubricants chapter.) Change hydraulic oil and filter. (See Change Hydraulic Oil in Maintenance-Every 1000 Hours and Replace Hydraulic Oil Filter in Maintenance-Every 500 Hours.)
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Oil flow through oil cooler restricted
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Check for kinked or restricted hoses. See your authorized dealer.
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Oil cooler air flow restricted
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Clean oil cooler. (See Clean Debris from Condenser and Oil Cooler-If Equipped, and Radiator in Maintenance-As Required.)
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Low Hydraulic Power (Low Hydraulic Pressure)
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Low oil level (oil aerated)
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Check hydraulic oil level and add if necessary. (See Check Hydraulic System Oil Level in Maintenance-Every 10 Hours or Daily.)
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Hydraulic Sump Overfills with Oil
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Cooling pump shaft seal
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See your authorized dealer.
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Hydraulic Oil Overheating
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Oil cooler flow restriction
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Check for kinked or restricted hoses. See your authorized dealer.
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