SEAL KIT 8T2066 - Caterpillar

At operation temperature, the engine coolant is hot and under pressure. Steam can cause personal injury. Check the coolant level only after the engine has been stopped and the fill cap is cool enough to touch with your bare hand. Remove the fill cap from the radiator slowly to relieve pressure. Cooling system conditioner contains alkali. Avoid contact with the skin and eyes to prevent personal injury.
Release the pressure in the cooling system by slowly loosening the filler cap on the radiator. Drain the coolant from the radiator and oil from the hydraulic oil cooler.
At operating temperature, the hydraulic oil tank is hot and under pressure. Hot oil can cause burns. To prevent possible personal injury, release the pressure in the hydraulic system before and hydraulic lines or components are disconnected or removed.
Release the pressure in the hydraulic system as follows:a. shut off the engine.b. Move the control levers through their full travel strokes. This will relieve any pressure that may be present in the pilot system.c. Slowly loosen the air breather cap on the hydraulic oil tank to release the pressure.d. Tighten the air breather cap on the hydraulic oil tank.e. The pressure in the hydraulic system has now been released. Lines and components can now be removed. Drain the cooling system.1. Drain the oil from the hydraulic tank to a level below the bottom of the hydraulic oil cooler. 2. Secure grill with straps and hoist. Remove bolts and washers (1) and remove grill (2). Weight of the grill is 136 kg (300 lb). 3. Remove bolts and washers (3). Secure with straps and hoist and remove cover (4). 4. Secure plate with jack or suitable lifting device. Remove bolts and washers (5) and remove plate (6) under radiator. 5. Remove bolts and washers (7) and disconnect bottom radiator hose (8). Remove clip (9) on small hose (10). 6. Remove bolts and washers (11) and move return valve (12) out of away from radiator. 7. Remove bolts (13) on right and left bottom of radiator. 8. Remove bolts and washers (14) on both sides of radiator and remove top of cap (15). 9. Disconnect both water lines (16) and line (17) in middle of radiator. 10. Secure with hoist as shown and remove radiator. The weight of the radiator is 454 kg (1000 lb). Install in the reverse order. Fill the hydraulic system with hydraulic oil to the correct level. See the Operation & Maintenance Manual. Fill the radiator with coolant to the correct level. See the Operation & Maintenance Manual.