ELBOW 1059678 - Caterpillar

Start By:
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
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 work tools have been lowered to the ground, and the 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.
Illustration 1 g01146914
Remove the hydraulic tank cap and install Tooling (A). Apply414 kPa (60 psi) to 276 kPa (40 psi) of air pressure to Tooling (A) .
Illustration 2 g01146915
Remove cover assembly (1) .
Illustration 3 g01168109
Remove bolts (2) in order to disconnect column assembly (5). Remove nuts (3) in order to disconnect brake control valve (4) .
Illustration 4 g01146918
Disconnect bracket assemblies (7) from cab (6) .
Illustration 5 g01146919
Disconnect hoses (8) and harness assembly (9) .
Illustration 6 g01168224
Turn valves (10) to the OFF position.
Illustration 7 g01146921
Disconnect hose assemblies (11) .
Disconnect harness assembly (12) .
Disconnect hoses (13) .
Illustration 8 g01146922
Remove bolts (14) from cab (6) .
Illustration 9 g01146923
Attach Tooling (B) and a suitable lifting device to cab (6). The weight of cab (6) is approximately 1134 kg (2500 lb).
Illustration 10 g01146925
Disconnect ground strap (15) .
Remove bolts (16) .
Illustration 11 g01146924
Raise the cab in order to gain access to cable assembly (18).
Remove pin (19) and loosen nut (17) in order to disconnect cable assembly (18) .
Remove cab (6) .