Service and Repair Manual October 2016Manifolds108 ZX-135/70 Part No. 12685588-1Function Manifold ComponentsThe function manifold is mounted to the turntable next to the ground controls.IndexNo. Description SchematicItem Function Torque1 Check valve, 5 psi / 0.34 bar A Prevents hydraulic pressure fromflowing back into auxiliary pump#160 ft-lbs / 81 Nm2 Check valve, 5 psi / 0.34 bar B Prevents hydraulic pressure fromflowing back into auxiliary pump#260 ft-lbs / 81 Nm3 Check valve, 5 psi / 0.34 bar C Pressure Circuit 30-35 ft-lbs / 41-47 Nm4 Solenoid Valve, 2 position 3 way D Primary boom down 33-37 ft-lbs / 45-50 Nm5 Solenoid Valve, 2 position 3 way E Primary boom up 33-37 ft-lbs / 45-50 Nm6 Solenoid Valve, 2 position 3 way F Primary boom extend 33-37 ft-lbs / 45-50 Nm7 Solenoid Valve, 2 position 3 way G Primary boom retract 33-37 ft-lbs / 45-50 Nm8 Solenoid Valve, 2 position 3 way Z Secondary boom retract 33-37 ft-lbs / 45-50 Nm9 Solenoid Valve, 2 position 3 way Y Secondary boom extend 50-55 ft-lbs / 68-75 Nm10 Differential sensing valve, 150 psi /10.3 barFF Secondary boom extend/retractcircuit, regulates pressure dropacross secondary boomextend/retract proportional valve50-55 ft-lbs / 68-75 Nm11 Solenoid Valve, 2 position 3 way H Secondary boom up 50-55 ft-lbs / 68-75 Nm12 Solenoid Valve, 2 position 3 way I Secondary boom down 33-37 ft-lbs / 45-50 Nm13 Check valve, 100 psi / 6.9 bar HH Prevents the draining ofhydraulic oil from the jib manifoldand platform manifold90-100 ft-lbs / 122-136Nm14 Solenoid valve, 3 position 4 way W Turntable rotate circuit 33-37 ft-lbs / 45-50 Nm15 Relief valve, 3100 psi / 214 bar BB System relief 30-35 ft-lbs / 41-47 Nm16 Differential sensing valve, 150 psi /10.3 barQ Secondary boom up/downcircuit, regulates pressure dropacross secondary boom up/downproportional valve50-55 ft-lbs / 68-75 Nm
