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PIN GP- 4Z9283 - Caterpillar

4Z9283 PIN GP- Caterpillar parts PIN
Alternative (cross code) number:
Caterpillar 4Z9283 PIN GP-
Weight: 16 pounds 7 kg.

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Raise the hood.
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.
Hot oil and components can cause personal injury.Do not allow hot oil or components to contact skin.
Personal injury can result from hot coolant, steam and alkali.At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns.Remove cooling system pressure cap slowly to relieve pressure only when engine is stopped and cooling system pressure cap is cool enough to touch with your bare hand.Do not attempt to tighten hose connections when the coolant is hot, the hose can come off causing burns.Cooling System Coolant Additive contains alkali. Avoid contact with skin and eyes.
Turn the battery disconnect switch to the OFF position.
Recover the refrigerant. Refer to Service Manual, SENR5664, "All Products Air Conditioning and Heating Systems with R134a for All Caterpillar Machines" for the recovery and charging procedures. Refer to Special Publication, NENG2500, "Air Conditioning Tools" for the correct tools.
Drain the Coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.
Illustration 1 g03871446
Remove cover (1).
Illustration 2 g03875287
Loosen the hose clamps and disconnect heater hose assemblies (3). Move the heater hose assemblies to the side.
Loosen the retaining nuts in order to disconnect air conditioner hose assemblies (2). Remove the seals from hose assemblies (2) and set hose assemblies (2) to the side.
Illustration 3 g03875302
Typical Example
Remove bolt (5) and the washer in order to disconnect clips and hose bundle (4) from the heater assembly.
Illustration 4 g03875307
Disconnect electrical connector (6) and move the electrical connector to the side.
Illustration 5 g03875534
The weight of air conditioner and heater assembly (8) is approximately 35 kg (77 lb). Remove nuts (7) and use two people to remove air conditioner and heater assembly (8).
Illustration 6 g03875617
Remove covers (9) and (10) and the gaskets.
Remove filter assembly (11).
Illustration 7 g03875626
Disconnect and remove thermostat switch assembly (12).
Remove evaporator coil assembly (13).
Remove resistor (14).
Remove blower assembly (15).
Illustration 8 g03875715
Disconnect valve assembly (17) from heater core (16) and the harness assembly. Remove valve assembly (17).
Remove heater core (16). Installation Procedure
Install air conditioner and heater assembly (8) in the reverse order of removal.
Apply Tooling (A) to the studs for

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