HARNESS AS 7V8937 - Caterpillar

Introduction
Reference: For Systems Operation of the electronic controller, make reference to "Engine And Pump Electronic Control System Service Manual SENR9291".Testing And Adjusting
Reference: For Testing and Adjusting of the hydraulic system, make reference to Testing And Adjusting For 325B and 325B L Excavators Hydraulic System, SENR8961Specifications
Reference: For specifications, make reference to Hydraulic Systems Specifications, SENR8959.Hydraulic Schematic
(1) Swing motor(2) Travel motor (left)(3) Travel motor (right)(4) Stick cylinder(5) Travel brake valve (left)(6) Travel brake valve (right)(7) Bucket cylinder(8) Boom cylinder(9) Stick drift reduction valve(10) Swivel(11) Main control valves(12) Pressure switch (implement/swing)(13) Pressure switch (travel)(14) Boom drift reduction valve(15) Main relief valve(16) Pressure switch (boom RAISE)(17) Pilot control valve (travel)(18) Pilot control valve (swing/stick)(19) Solenoid valve (fine control)(20) Solenoid valve (travel speed)(21) Solenoid valve (swing priority)(22) Proportional reducing valve(23) Pilot control valve (boom, bucket)(24) Hydraulic activation control valve(25) Accumulator(26) Pilot relief valve(27) Shock reducing valve(28) Upper pump(29) Lower pump(30) Automatic travel speed change valve pressure sensor(31) Pilot pump(32) Pilot oil manifold(33) Pilot filter(34) Drain filter(35) Slow return check valve(36) Oil cooler(37) Bypass check valve(38) Capsule filter(39) Hydraulic tankHydraulic Schematic
(1) Swing motor(2) Travel motor (left)(3) Travel motor (right)(4) Stick cylinder(5) Travel brake valve (left)(6) Travel brake valve (right)(7) Bucket cylinder(8) Boom cylinder(9) Stick drift reduction valve(10) Swivel(11) Main control valves(12) Pressure switch (implement/swing)(13) Pressure switch (travel)(14) Boom drift reduction valve(15) Main relief valve(16) Pressure switch (boom RAISE)(17) Pilot control valve (travel)(18) Pilot control valve (swing/stick)(19) Solenoid valve (fine control)(20) Solenoid valve (travel speed)(21) Solenoid valve (swing priority)(22) Proportional reducing valve(23) Pilot control valve (boom, bucket)(24) Hydraulic activation control valve(25) Accumulator(26) Pilot relief valve(27) Shock reducing valve(28) Upper pump(29) Lower pump(30) Automatic travel speed change valve pressure sensor(31) Pilot pump(32) Pilot oil manifold(33) Pilot filter(34) Drain filter(35) Slow return check valve(36) Oil cooler(37) Bypass check valve(38) Capsule filter(39) Hydraulic tank