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Figure 7. Cooling Package.
CHAPTER 2. OPERATOR INSTRUCTIONS FOR HYDRAULIC EXCAVATOR TYPE 1 (HYEX) NSN 3805-01-573-0677

Operators Manual For Hydraulic Excavator Type 1 With Hydraulic Thumb And Quick Latch Page Navigation
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TM 5-3805-294-10
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Cooling - Continued
35
36
37
HYEX01517
Figure 8. Cooling System Components.
Table 8. Cooling System Components.
35
Coolant Surge Tank
The coolant surge tank is where the coolant level is checked and added.
36
Engine Oil Cooler
Coolant from the radiator passes through the engine oil cooler to maintain a
safe operating temperature.
37
Fan
The variable speed fan is located at the front of the engine and is driven by a
hydraulic motor. The speed of the fan is varied to provide the amount of airflow
that the engine coolant, charge air cooler, or hydraulic cooler need, ensuring
maximum fuel efficiency, reduced noise levels, and faster engine warm up. A
reversing function reverses the cooling fan to help clean the cooling package
of dirt and debris.
END OF WORK PACKAGE
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