Caterpillar 311F LRR – JFT Crawler Excavator Engine Fan Removal and Installation



This article describes Caterpillar 311F LRR – JFT crawler excavator engine fan removal and installation

C3.4B Engine Caterpillar is used for building machines

 

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Removing steps

begin:

  1. Remove the alternator belt. See Disassembly and Assembly, “Alternator belt-Removing and installing” for the correct steps.

  

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Typical example

 

  1. Remove the nut (1).

2 . Remove the fan (2).

 Note: Record the orientation of the fan.

  1. Remove the fan adapter (3).

4 . Remove the fan pulley (4).

  1. If necessary, remove the stud (5) from the fan drive (6).

 

 Installation steps

 

  1. Ensure that all parts are not worn or damaged. If necessary, replace all worn or damaged parts.

 

   Typical example

  1. If necessary, install the studs (5) on the fan drive (6). Tighten the stud (5) to a torque of 11 N·m (97 lbin).
  2. If the stud (5) was previously removed from the fan driver (6), check that the fan drive stud is properly correctly.Tighten the double-head stud (5) to a torque of 25N-m (221 lbin).

4 . Install the fan pulley (4).

  1. Install the fan adapter (3).
  2. Install the fan (2).

 Note: Make sure that the fan is oriented correctly.

  1. Check the condition of the locking nut (1). Replace the locking nut, if necessary. Install the lock nut (1). Tighten the locknut (1) to a torque of 22N-m (195 lb in).

End By: Install the alternator belt. For the correct steps, see Disassembly and Assembly, “Alterator Generator Belt Removing and Installing.”

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