770 and 772 Off-Highway Truck/Tractors Heater Coil - Remove and Install Caterpillar


Heater Coil - Remove and Install
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1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Start By:

  1. Remove the evaporator coil. Refer to Disassembly and Assembly, "Evaporator Coil - Remove and Install".


    Illustration 1g01391374

  1. Disconnect harness assembly (4). Remove screws (2). Remove bolt (1) and bolts (3). Remove valve assembly (5).


    Illustration 2g01391410

  2. Remove screws (7) and remove actuator (8). Remove bushing (6).


    Illustration 3g01391433

  3. Remove screws (9). Remove plate (10) from valve assembly (11).


    Illustration 4g01391443

  4. Remove bolts (12). Remove heater coil (13).

Installation Procedure



    Illustration 5g01391443

  1. Position heater coil (13) and install bolts (12).


    Illustration 6g01391433

  2. Position plate (10) onto valve assembly (11). Install screws (9).


    Illustration 7g01391410

  3. Install bushing (6) and position actuator (8). Install screws (7).


    Illustration 8g01391374

  4. Position valve assembly (5) and install bolts (3) and bolt (1). Install screws (2). Connect harness assembly (4).

End By:

  1. Install the evaporator coil. Refer to Disassembly and Assembly, "Evaporator Coil - Remove and Install".

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