PISTON AS 2123678 - Caterpillar

Illustration 1 g03818891
Stabilizer Cylinder
(1) Rod
(2) Collar
(3) Cylinder housing
(4) Piston
(5) Port (piston end)
(6) Twin pilot - check valve
(7) Port (rod end) The main components of the stabilizer cylinders are rod (1), cylinder housing (3), piston (4), and check valve (6).
Illustration 2 g03818900
(5) Port (piston end)
(6) Twin pilot - check valve
(7) Port (rod end)
(8) Pilot operated check valve
(9) Check valve
(10) Piston
(11) Retainer
(12) Cone
(13) Plug
(14) Spring The stabilizer cylinders are double acting cylinders with lock check valves (8). Lock check valves (8) block the hydraulic oil in each end of the cylinders when the control valve is in the NEUTRAL position.Pressure that is leaking from the main control valve can increase in the head end of the cylinders. The increased head end pressure can cause the stabilizers to lower. Check valve (9) is used to release the leaking pressure from the main control valve to the rod end of the stabilizer cylinders. The rod end is always open to the tank through orifice and the direct line to the main return filter. The check valve allows the stabilizer cylinders to stay raised when you travel the machine.