336E Excavator and 336E MHPU Mobile Hydraulic Power Unit C9.3 Engine Supplement Refrigerant Compressor - Remove and Install Caterpillar


Refrigerant Compressor - Remove and Install
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336E Excavator and 336E MHPU Mobile Hydraulic Power Unit C9.3 Engine Supplement [KENR8156]
OPERATOR STATION
AIR CONDITIONER GP
336E Excavator and 336E MHPU Mobile Hydraulic Power Unit C9.3 Engine Supplement Refrigerant Compressor - Remove and Install
336E Excavator and 336E MHPU Mobile Hydraulic Power Unit C9.3 Engine Supplement Refrigerant Condenser - Remove and Install
1.1. Removal Procedure
2.1. Installation Procedure

Removal Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
Loctite 242 

------ WARNING! ------

Personal injury can result from contact with refrigerant.

Contact with refrigerant can cause frost bite. Keep face and hands away to help prevent injury.

Protective goggles must always be worn when refrigerant lines are opened, even if the gauges indicate the system is empty of refrigerant.

Always use precaution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, release it slowly in a well ventilated area.

Personal injury or death can result from inhaling refrigerant through a lit cigarette.

Inhaling air conditioner refrigerant gas through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting air conditioner refrigerant gas, can cause bodily harm or death.

Do not smoke when servicing air conditioners or wherever refrigerant gas may be present.

Use a certified recovery and recycling cart to properly remove the refrigerant from the air conditioning system.


  1. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the correct recovery and charging procedures. Refer to Special Publication, NEDG2500, "Air Conditioning Tools" for the correct tools.


    Illustration 1g02178960

  2. Remove bolts (1) and plate assembly (2).


    Illustration 2g02144602

  3. Remove belt (8). Refer to Operation and Maintenance Manual, "Belt - Inspect/Adjust/Replace".

  4. Disconnect harness assembly (4).

  5. Disconnect hose assembly (5) and (6).

  6. Remove bolts (7) and refrigerant compressor (3).

Installation Procedure

  1. Install refrigerant compressor (3) in the reverse order of removal.

    1. Tighten the bolts for hose assemblies (5) and (6) to a torque of 23 ± 3 N·m (205 ± 27 lb in).

    2. Apply Tooling (A) to the threads of bolts (1).

Information System:

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