HYDRAULIC KT 5098403 - Caterpillar

HOLD Position
Face the front of the machine as you sit in the seat in order to determine the left and the right controls for the operation of the stabilizer control valves.The stabilizer control levers are located to the left of the operator seat. The right stabilizer control valve and the left stabilizer control valves are identical. The operation of the valves are identical.
Illustration 1 g02018053
(1) Spring (2) Spool (3) Pump passage (4) SpringThe stabilizer control valve is located next to the boom control valve. In the HOLD position, the spring (4) and spring (1) hold spool (2) in the centered position. No pilot oil enters the control valve. Any pilot oil in the pilot lines drains through the pilot valve to the tank. The spool (2) blocks the flow of pump supply oil in passage (3) .Passage (3) is common to all control valves in the bank valve. The passage has no outlet. The spool blocks the flow of pump supply oil until the operator moves the pilot valve.DOWN Position
Illustration 2 g02018094
(1) Port to the head end of the cylinder (2) Check valve (3) Port to the rod side of the cylinder (4) Passage (5) Passage (6) Spring (7) Spool (8) Passage (9) Pump passage (10) Passage (11) Passage (12) Spring (13)