ELBOW 2W1024 - Caterpillar

The following line relief valves are located on top of the main control valves: boom cylinder rod end, bucket cylinder head end and stick cylinder head end. The line relief valve for the bucket cylinder rod end is located under the main control valves.
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Main control valve (bottom view) (10) Line relief valve (boom cylinder head end) (11) Boom drift reduction valveThe line relief valve for the boom cylinder head end (10) is located at boom drift reduction valve (11).
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Main control valve (12) Line relief valve (stick cylinder rod end) (13) Stick drift reduction valveThe line relief valve for the stick cylinder rod end (12) is located at stick drift reduction valve (13).
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Line relief valve (if equipped) (14) Locknut (15) Adjustment screw
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Line relief valve (if equipped) (16) Locknut (17) CapNote: Return main relief valve pressure to the specification after testing and adjusting any line relief valve. Refer to Testing And Adjusting, "Pressure Specifications" for the main relief valve pressure setting.Note: In order to cancel Service Mode, depress the following three buttons on the operator monitor panel at the same time: button for fine control (4), button for user mode (5) and travel alarm cancel switch (6). Hold all three buttons down for at least three seconds. If the engine switch key is placed in the OFF position for at least 75 15 seconds, Service Mode will be cancelled.Adjust
Stick Cylinder
To adjust the line relief valve pressure setting of the stick cylinder rod end, move the stick control lever until the stick is at the full STICK OUT position (full retraction of stick