GEAR 9W5773 - Caterpillar

The following line relief valves are located on top of the main control valve: 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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(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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(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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(14) Locknut (15) Adjustment screw
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(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 cylinder).
Check the pressure in the stick cylinder rod end on the pressure gauge at pressure tap (3) .
Return the stick control lever to the NEUTRAL position.
Loosen locknut (14) or (16) on the stick line relief valve. Turn adjustment screw (15) or turn cap (17) until the pressure gauge reading at pressure tap (3) is 36800 1470 kPa (5350 215 psi).
To adjust the line relief valve pressure setting of the stick cylinder head end, move the stick control lever until the stick is at the full STICK IN position (full extension of stick cylinder).
Check the pressure in the stick cylinder head end on the pressure gauge at pressure tap (3) .
Return the stick control lever to the NEUTRAL position.
Loosen locknut (14) or (16) on the stick line relief valve. Turn adjustment screw (15) or turn cap (17) until the pressure gauge reading at pressure tap (3) is 36800 1470 kPa (5350 215 psi).
After completion of line relief valve adjustment, tighten locknut (14) or (16) .Note: Turning adjustment screw (15) or turning cap (17) clockwise increases the pressure. Turning adjustment screw (15) or turning cap (17) counterclockwise decreases the pressure.Note: Always make final pressure adjustment on pressure rise.Bucket Cylinder
To adjust the line relief valve pressure setting of the bucket cylinder head end, move