THROWER 7B0276 - Caterpillar

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.
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 Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
There are three suction screens inside the hoist, torque converter, and brake tank. Clean the screens whenever there is a failure of the following components:
Torque converter
Hoist cylinders
Hoist pumpsAccess the screens from the back side of the hoist, torque converter, and brake tank.
Park the machine on a level surface with the truck body in the DOWN position. Stop the engine and make sure that the transmission control is in the PARK position.
Illustration 1 g01210492
Remove filler cap (1) in order to prevent a vacuum in the tank. Install the cap after the tank has been drained. This will prevent dirt from entering the system.Note: Hand tighten the NPT pipe nipple. Do not use tools.
Remove the tank drain plug (2). Install a 88 mm (3.50 inch) long NPT pipe nipple in order to open the internal drain valve. The outer diameter of the NPT pipe nipple should be 25.4 mm (1 inch). Drain the oil into a suitable container.
Illustration 2 g01210459
Remove tube assemblies (3) from the back of the tank.
Illustration 3 g01210488
Remove suction screen (4) for the hoist. Remove suction screen (5) for the torque converter. Remove suction screen (6) for the auxiliary brake cooling.
Wash the suction screens and the bolts in clean, nonflammable solvent.
Install the clean suction screens, the tube assemblies and the clean bolts.
Fill the hoist/brake tank. Refer to Operation and Maintenance Manual, "Lubricant Viscosities". Refer to Operation and Maintenance Manual, "Capacities (Refill)".
Illustration 4 g01210607
The engine shutdown switch is located above the left side of the front bumper.
Use engine shutdown switch (7) to prevent the engine from starting. Crank the engine for approximately 15 seconds. The oil level will decrease as oil fills the system.
Illustration 5 g01210508
Add oil to the tank in order to raise the oil to the proper level in upper sight gauge (8). Refer to Operation and Maintenance Manual, "Hoist, Torque Converter and Brake Tank Oil Level - Check" for the proper oil level within the sight gauge.
Repeat Step 9 and Step 10 until the proper oil level stabilizes in the upper sight gauge.
Lower the guard on the engine shutdown switch. Start the engine and operate the engine at low idle. Check for leaks and make necessary repairs.
Raise the truck body until the hoist cylinders are extended halfway. Lower the truck body and add oil, if necessary.
Raise the truck body until the hoist cylinders are fully extended. Lower the truck body and add oil, if necessary.
Repeat Step 13 and Step 14 until the proper oil level stabilizes in the