Evacuate the A/C system. (See Reclamation And Charging With Recovery / Charging Unit on Page 70-40-3.) Remove the A/C hoses (Item 1 and 2) [Figure…

NOTE: The thermostat can be changed without evacuating the A/C system, or removing the evaporator / heater unit from the excavator. Remove the floor mat.…

The Electronic De-icing Thermostat (EDT) is a micro controller based module that measures evaporator coil temperature and cycles the compressor clutch to maintain a constant…

Remove the cab. (See Removal And Installation on Page 40-30-1.) Discharge the A/C system. (See Reclamation And Charging With Recovery / Charging Unit on Page…

Open the right side cover. Evacuate the A/C System. (See Reclamation And Charging With Recovery / Charging Unit on Page 70-40-3.) Remove the right upperstructure…

The pressure relief valve (Item 1) [Figure 70-70-2] is located on the receiver / drier assembly. The pressure relief valve is designed to open and…

Evacuate the A/C system. (See Reclamation And Charging With Recovery / Charging Unit on Page 70-40-3.) Open the right side cover. Remove the right upperstructure…

Open the tailgate. Evacuate the A/C system. (See Reclamation And Charging With Recovery / Charging Unit on Page 70-40-3.) Open the right side cover. Mark…

The compressor oil should be checked as follows when oil is being added to an in service excavator. There is a close affinity between oil…

The compressor (Item 1) [Figure 70-50-11] is factory filled with 150-170 cc’s of PAG 100 refrigerant oil (Polyalkelene Glycol). It is not necessary to frequently…