IDLER GP-FRONT 7P2719 - Caterpillar

1. Put door assembly (1) in the "OPEN" position. 2. Put the heater hose valves in the "CLOSED" position at the engine.3. Disconnect heater hoses (2) from the heater core. Put caps or plugs in the hose openings to prevent coolant loss.4. Disconnect wire harness (3).
Always wear goggles when the air conditioning system is opened. This system is charged with Freon-12 (CCL2F2 Dichlorodifluoromethane) which is not toxic or flammable. But there is a reason for caution. When Freon-12 makes contact with a flame, lethal phosgene gas is made. INHALING FREON THROUGH A LIGHTED CIGARETTE CAN CAUSE VIOLENT ILLNESS. This system is under pressure at all times, engine running or not. HEAT MUST NEVER BE PUT ON A CHARGED SYSTEM. See Air Conditioning And Heating Service Manual Form No. SENR7454 for more information on procedures and safety requirements on removal and installation of lines and refrigerant from the system.
5. Disconnect air conditioning lines (4) from the coil and the dryer. 6. Fasten tooling (A) and a hoist on door assembly (1) as shown.7. Remove the bolts and door assembly (1) from the machine. The weight of the door assembly is 68 kg (150 lb.).Install Air Conditioner And Heater Units
1. Fasten tooling (A) and a hoist on door assembly (1) as shown.2. Install door assembly (1) on the machine and bolts that hold it. 3. Connect heater hoses (2) to the heater core. Put the heater hose valves at the engine in the "OPEN" position.4. Connect wire harness (3).5. Connect air conditioning lines (4) to the coil and the dryer.6. See Air Conditioning And Heating Service Manual Form No. SENR7454 for the correct procedure for evacuating and charging the system. 7. Put door assembly (1) in the "CLOSED" position.