Section 4: Options and AccessoriesTable of ContentsPD10, PD15, PD25 & PD35 Post Hole Diggers 317-048M8/9/19 31Down Pressure Cylinder PlumbingFigure 4-17Refer to Figure 4-17:14. Install hydraulic plumbing using teflon tape to sealpipe threads. Do not tighten connections until after allfittings have been installed.a. Connect plug (#3) to rod end of hydraulic cylinder.b. Connect straight fitting (#8) to clevis end ofhydraulic cylinder.c. Connect shuttle tee fitting (#9) to straight fitting.d. Connect pressure relief valve (#2) to shuttle tee.e. Connect standard tee fitting (#5) to the bottom endof pressure relief valve.f. Connect 90 o elbow fitting (#4) to remaining port ofpressure relief valve.g. Connect 3/8" x 15 3/4" bypass line (#7) to shuttletee (#9) and standard tee (#5).h. Connect 3/8" x 84 1/2" pressure line (#6) to90 o elbow fitting (#4).i. Connect pressure line (#6) to the tractor hydraulicoutlet.j. Connect customer supplied Return line to teefitting (#5).k. Connect customer supplied return line to reservoiror sump.15. Continue with “Adjust Down Pressure Kit” on thispage.26829Return Line to SumpPressure LineShuttle TeeNut PlacementIMPORTANT: Do not connect return line to thetractor remote outlet. Damage will occur to diggerframe if not properly hooked up to reservoir or sump.NOTE: Customer to provide return line to sump andfittings to connect return line to tee fitting (#5) and tothe tractor sump.Setting Down Pressure KitFigure 4-18Adjust Down Pressure KitRefer to Figure 4-18:1. Raise Post Hole Digger so that auger tip is 6" to 12"above ground.2. Set tractor 3-point up-stop to limit auger maximumraised height to 12". Exceeding this height can causeundue stress on Driveline and cause drivelinedamage.Refer to Figure 4-19:3. Loosen bolts in clamp plates (#4).4. Push top of cylinder mounting plates (#1 & # 2)forward toward the tractor until plates have firmlycontacted digger yoke.5. Make sure cylinder clamp plates (#4) will move fairlyfree on digger boom and that cylinder (#3) is fullyretracted.6. Extend cylinder (#3) 1/2" and tighten bolts in clampplates (#4) evenly to 76 ft-lbs.Set Down Pressure KitFigure 4-191483714838