F84280 Force KING PIN NUT

Start By:
Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, "System Pressure - Release".
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.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin. At operating 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 cooling system pressure cap is cool enough to touch with your bare hand.Remove the cooling system pressure cap slowly to relieve pressure.Cooling system conditioner contains alkali. Avoid contact with the skin and eyes to prevent personal injury.
Note: Put identification marks on all lines, on all hoses, on all wires and on all tubes for installation purposes. Plug all lines, all hoses and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
Open the engine hood.
Open the engine side panels on both sides of the machine.
Drain the coolant from the recovery tank. Refer to Operation and Maintenance Manual, SEBU7362, "980G Series II Wheel Loader", "Cooling System Coolant (ELC) - Change" for the correct procedure.
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Disconnect battery cable (1) at disconnect switch (2) .
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Disconnect harness cable (4) from junction block (3) .
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Remove bolt (5) and the wire strap. Pull harness cable (4) through the grommet to the inside of the shield assembly.
Remove four bolts and the washers that secure panel (6) to the shield assembly.
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Remove grommet (7) from the hole for the oil filler tube. Remove grommet (8) from the hole for the engine oil dipstick.
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Loosen clamps (9) which secure ATAAC tube (10) in place. Remove ATAAC tube (10) from the shield assembly.
Disconnect hose assembly (11) from the fan motor. Remove the rubber grommet and pull the hose assembly through the shield assembly.
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Disconnect two coolant lines (12) and (13). Remove the rubber grommets and pull the coolant lines through the shield assembly.
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Disconnect the two electrical connectors (14) that are located at the lower left side of the shield assembly.
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Remove four bolts (15) which hold bottom guard (16) in place. Separate bottom guard (16) from the shield assembly.
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