Service and Repair Manual October 2016Hydraulic Pumps106 ZX-135/70 Part No. 12685585 Carefully pull the drive pump out until the pumpcoupler separates from the flex plate.6 Remove the drive pump from the machine.Component damage hazard.The pump(s) may becomeunbalanced and fall if notproperly supported.Component damage hazard.The engine must not be startedwith the hydraulic tank shut-offvalves in the closed position orcomponent damage will occur. Ifthe tank valves are closed,remove the key from the keyswitch and tag the machine toinform personnel of thecondition.How to Prime the Dri ve PumpHow to Prime the Drive PumpComponent damage hazard. Besure to open the two hydraulictank valves before performingthis procedure.1 Connect a 0 to 600 psi / 0 to 50 bar pressuregauge to either the "A" or "B" test port on thedrive pump.2 Perkins models: Disconnect the enginewiring harness from the fuel shutoff solenoid atthe injector pump.Deutz models: Hold the manual fuel shutoffvalve clockwise to the closed position.3 Have another person crank the engine with thestarter motor for 15 seconds, wait 15 seconds,then crank the engine an additional15 seconds or until the pressure reachesapproximately 250 psi / 17 bar.4 Perkins models: Connect the engine wiringharness to the fuel solenoid.Deutz models: Release the manual fuelshutoff valve.5 Start the engine from the ground controls.6 Check for hydraulic leaks.
