HARNESS AS-CONTROL 1803012 - Caterpillar

Removal Procedure
Park the machine on a hard, level surface. Lower the scraper bowl to the ground.
Start the machine. Turn the tractor so that the tractor is at a right angle to the scraper. Engage the parking brake and chock the wheels in order to prevent the machine from moving.
At operating temperature the implement hydraulic oil tank is hot and under pressure. Hot oil can cause burns.To prevent possible injury, release the pressure in the implement hydraulic system before hydraulic lines or components are disconnected or removed.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Drain the hydraulic tank. Drain the fluid into a suitable container. The hydraulic tank has a capacity of 180 L (48 US gal).
Put identification marks on all lines, hoses, wires, and tubes for installation purposes. Plug all lines, hoses and tubes. This helps prevent fluid loss and contamination of the oil system.
Illustration 1 g00508012
Remove four bolts (1) and the washers from tube assembly (2). Disconnect tube assembly (2) and the O-ring seal from tube assembly (3) .
Illustration 2 g00799683
Remove four bolts (4) and the washers from elbow (5). Disconnect elbow (5) and the O-ring seal from hydraulic and steering pump (6) .
Illustration 3 g00799685
Remove four bolts (7) and the washers from elbow (8). Disconnect elbow (8) and the O-ring seal from hydraulic and steering pump (6) .
Illustration 4 g00799691
Remove four bolts (9) and the washers from tube assembly (3). Disconnect tube assembly (3) and the O-ring seal from hydraulic and steering pump (6) .
Illustration 5 g00508020
Remove two nuts (10) and the washers from hydraulic and steering pump (6) .
Illustration 6 g00799695
Attach a nylon lifting strap and a hoist to hydraulic and steering pump (6). Remove the hydraulic and steering pump and the O-ring seal from the machine. The hydraulic and steering pump weighs 55 kg (121 lb).