PLATE 5T5921 - Caterpillar

Removal Procedure
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.
Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed.Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death.Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the machine. 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 to collect and contain fluids in Caterpillar machines.Dispose of all fluids according to local regulations.
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.
Illustration 1 g06254772
Start the machine and lower both tow arms (2).
Shut off the machine.
Open side access panel (1).
Turn the disconnect switch to the OFF position.
Release the system pressure. Refer to Disassembly and Assembly, "System Pressure - Release".
Illustration 2 g06254782
Remove the cotter pin and pin (4) from hydraulic cylinder (3) and tow arm (2).
Illustration 3 g06254779
Disconnect two hose assemblies (7) from hydraulic cylinder (3).
Remove cotter pin (5), pin (6), and hydraulic cylinder (3).Installation Procedure
Install hydraulic cylinder (3) in the reverse order of removal.