Parker 716 Series Service Manual

Contents

Parker 716 Series Service Manual Manual pdf 19 page image

Parker Hannifin Corp.Hydraulic Pump/Motor Div.Greeneville, TN 37745 USA15Disassembly and InspectionFigure D16Figure D17Figure D18Figure D19Pilot OptionTo change pilot from normally parallel to normally series or viceversa. Also valid for solenoid shift motors.1. Remove the plugs (12) on the center block (9).SEE FIGURE D16.2. Remove the spool (11) and spring(13). SEE FIGURE D17.3. Looking at the port surface, install the spool with ...A) the “double” or "wide" land nearest the “pilot port” fornormally parallel operation. SEE FIGURE D18.B) the “double” or "wide" land opposite the “pilot port” fornormally series operation. SEE FIGURE D19.4. The spring is always located on the side, opposite the “pilot port”.SEE FIGURES 18 & 19.The disassembly of the motor is completed.PARTS INSPECTIONInspect the shaft for a smooth polish in the bearing and seal areas.If scratched, polish with fine emery paper in circumferential direc-tion. If pitted, or if scratches are deep, replace shaft and check therest of the motor for scratches, galling, or contamination damage.Replace parts as needed.If your motor has a thru shaft option and the seals were leaking,the entire cover must be replaced. Thru covers contain noservicable parts.