Walker MC (20 HP) Owner's Manual

Also see for MC (20 HP): Illustrated parts manual

Contents

Walker MC (20 HP) Owner's Manual Manual pdf 50 page image

Maintenance Instructions LUBRICATION461. Park the mower on a level surface with theen gine stopped. The engine oil should bewarm before draining. If not warm from opera-tion, start the engine and run a few minutes towarm the oil.2. Before removing the dipstick, clean the areaaround it to keep any dirt or debris out of theen gine.3. Remove the dipstick and oil drain plug and drainthe oil into a suitable container. Be sure to allowample time for complete drainage.Oil FilterDrain PlugOil Drain/Oil Filter Location4. Before removing the oil filter, clean the areaaround the filter to keep dirt and debris out ofthe engine.5. Remove the old oil filter and wipe off the filtermounting surface on the engine.6. Apply a thin coating of clean oil to the rubbergasket on the replacement oil filter.IMPORTANT: Use ONLY oil filters from the en-gine manufacturer (Kohler 12-050-01). After-market oil filters may not seal properly and/ormay not have the correct pressure relief valvefor proper lubrication.7. Install the new oil filter on the engine. Turn thefilter clockwise until the rubber gasket contactsthe sealing surface, then tighten an additional1/2 turn.8. Reinstall the drain plug. Make sure it is tight-ened to 10 ft-lb (13.6 N·m).9. Fill the crankcase with new, clean oil. Use onlycrankcase lubricants recommended by the en-gine manufacturer. Refer to Specifications inthis manual or the engine owner’s manual. Usethe recommended oil viscosity for the expectedambient temperature. Oil with the correct vis-cosity will aid starting in cold weather and assureproper lubrication in hot weather. Fill up to, butnot above, the “F” mark on the dipstick.Crankcase capacity is 1.85 quarts (1.75 liters)plus 1/2 pint (0.24 liters) for the new oil filter.IMPORTANT: Check the dipstick reading be-fore adding the last 1/2 pint of oil and fill only tothe “F” mark. DO NOT overfill the crankcase(oil above “F” mark) as this CAN result in en-gine overheating, loss of power, and possibleengine damage.10. Start the engine and check for oil leaks aroundthe oil filter. Stop the engine, recheck the oillevel, and add oil if necessary. (When the en-gine is first operated with a new oil filter, the oillevel drops slightly as the filter is filled with oil.)Mower Deck Gearbox LubricationNOTE: These instructions apply to all mower deckswith gear-driven blades. Refer to DSD52 MowerDeck Lubrication in this section for the DSD52deck with belt-driven blades.The mower deck gearboxes (tee gearbox and bladedrive gearboxes) are connected as a unitized as-sembly, and oil flows freely between them. The gear-boxes are permanently lubricated (oil filled) andsealed requiring no scheduled lubrication. Howev-er, the gearbox oil seals should be checked every25 hours for indication of an oil leak; particularlythe lower seals on the blade drive gearboxesshould be inspected, since they operate in a dirtyenvironment. If an oil leak is noted, replace the oilseal and relubricate the gearbox assembly asfollows:1. Remove gearbox cover (footrest). Deck orien-tation should be the normal operating position.