Walker MDD (20.9 HP) Owner's Manual

Also see for MDD: Owner's manual Owner's manual

Contents

Maintenance Instructions REPLACING/REPAIRING72Fuel FilterModel MDD has two (2) fuel filters. Replace boththe in-line filter and the Kubota filter element every400 hours of operation.Fuel Filter LocationIMPORTANT: Replace fuel filters only in aclean area where the fuel line and connectionswill not be contaminated by dust and dirt.1. Close the fuel tank shut-off valve and the Kubo-ta fuel filter cock.2. Remove and replace the in-line filter; expandand slide clamps on either side of the filter awayfrom filter and pull fuel lines off filter.3. Loosen the ring screw on the Kubota filter as-sembly, remove the filter pot and filter element.4. Clean the filter pot and reassemble the filter as-sembly with a new filter element (use only aKubota replacement filter #15231-43560).5. Open the fuel filter cock and fuel tank shut-offvalve.Blade Overload Shear BoltsNOTE: Shear bolts are not used on the DSD62mower deck.The cutting blade is keyed to the blade hub by two(2) shear bolts (10-24 x 5/8 in. stainless steel ma-chine screws). These bolts are designed to shearand protect the blade drive gearbox from damage ifthe blade encounters a shock load.Cutting Blade Shear BoltsNOTE: Tightening the 5/8-18 blade mounting nutto 60 ft-lb (81.3 N·m) is also important for propershock load protection. It is important to not over-tighten the mounting nut since this defeats (over-rides) the function of the shear bolts.If these bolts shear, remove the blade and install newbolts. Refer to CHECKING/SERVICING in this sec-tion for Sharpen Mower Blades which describes theblade removal and installation procedure.After reinstalling the blade, check blade timing bymoving blades through one (1) complete revolu-tion. Make sure blade tips pass clear of each other.If timing is incorrect, refer to Mower Deck GearboxReplacement in this section.KubotaFuel FilterIn-LineFilter Cold Start Lever(For Reference)Cutting BladeShear Bolts