PUMP GP-SCAVENGE 3427800 - Caterpillar

Cooler Cores
The following cooler cores are cooled by the hydraulic fan that is located in the radiator guard at the front of the track-type tractor.Aftercooler cores - The aftercooler cores cool the inlet manifold air to the engine.Radiator cores - The radiator cores cool the engine coolant.A/C condenser core - The air conditioning condenser core cools the refrigerant in the air conditioning system.Aftercoolers
Illustration 1 g03358464
Rear view of dual aftercooler cores
Radiator Core
Illustration 2 g03510464A/C Condenser Core
Illustration 3 g03511297A common arrangement for the air conditioner condenser is located behind the radiator.Remote A/C Condenser Core
In some machine arrangements, the a/c condenser core is remotely located. A remote mounted a/c condenser core is cooled by fans with electric drive.
Illustration 4 g01053048An optional arrangement for the air conditioner condenser is located on the right side fender.
Illustration 5 g03512596An optional arrangement for the air conditioner condenser is located on the top of the ROPS.Inspect
Note: Adjust the frequency of inspection according to the effects of the operating environment.
Illustration 6 g03509323Turn off the engine.Open both of engine access doors (1).Inspect the cooling system for the following conditions: coolant leaks, oil leaks, damaged fins and tubes. Inspect the following parts of the cooling systems: air lines, connections and clamps for damage .Make repairs for damage, if necessary.Note: If parts of the aftercooler system appear to be damaged or if parts of the aftercooler system are repaired, a leak test is highly recommended. Refer to Special Instruction, SEHS8622, "Using the FT1984 Air-to-Air Aftercooler Leak Test Group". The FT-1984 Aftercooler Testing Group can be used for aftercoolers that have hoses with an inside diameter of 102 mm (4.00 inch) or 114 mm (4.50 inch).For more detailed information on testing and inspection, see Special Publication, SEBD0518, "Know Your Track-Type Tractor Cooling System".Clean
Personal injury can result from air pressure.Personal injury can result without following proper procedure. When using pressure air, wear a protective face shield and protective clothing.Maximum air pressure at the nozzle must be less than 205 kPa (30 psi) for cleaning purposes.
Radiator cores, aftercooler cores, and a/c condenser cores needed to be cleaned regularly. Adjust the frequency of cleaning according to the effects of the operating environment.Blow out the cores with compressed air. Move the air nozzle in a systematic pattern so that the air flow covers the whole core that includes areas in the corner. Clean the middle space between the aftercooler core and the a/c condenser core.Use a bent copper tube that is approximately 1/4 -3/8 inch diameter as an extension to the air nozzle. This action will facilitate cleaning of the middle spaces. Do not use steam or high-pressure water for cleaning frequently. If steam or high-pressure water is required to dislodge any debris that is held deep in the cores, make sure that the cleaning is thorough. This operation may require partial removal or total removal of the air conditioner condenser for better access. Incomplete cleaning with water may cause remaining debris to harden in place. Use lights and wire probes in order to ensure that the cleaning is thorough