HOSE AS 5661628 - Caterpillar

Main Hydraulic Schematic
Illustration 1 g01524935
(1) Swing motor (2) Left travel motor (3) Right travel motor (4) Stick cylinder (5) Boom cylinders (6) Bucket cylinder (7) Swivel (8) Main control valve (9) Implement pressure switch (10) Pilot control valve (travel) (11) Main relief valve (12) Pilot control valve (swing and stick) (13) Pilot control valve (boom and bucket) (14) Shuttle valve (15) Travel pressure switch (16) Pressure reducing valve for boom priority (17) Bypass check valve (18) Slow return check valve (19) Swing brake solenoid valve (20) Valve (21) Hydraulic activation solenoid valve (22) Pressure sensor (23) Oil cooler (24) Accumulator (25) Idler pump (26) Pilot pump (27) Drive pump (28) Travel speed solenoid valve (29) Pilot relief valve (30) Pilot manifold (31) Hydraulic tank (32) Drain filter (33) Pilot filter (34) Pressure sensor (35) Pressure reducing valve for boom down regeneration (36) Boom down pressure switch (37) Shock reducing valveHydraulic Pump Flow
Illustration 2 g01524872
Pump compartment (25) Idler pump (26) Pilot pump (27) Drive pump (38) Outlet line (idler pump) (39) Outlet line (drive pump)
Illustration 3 g01524874
Control valve (40) Left side of the control valve body (41) Right side of the control valve bodyThis machine is driven and controlled by the following systems.
The main hydraulic system controls the cylinders, the travel motors, and the swing motor.
The pilot hydraulic system supplies