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 58 page image

Maintenance Instructions CLEANING544. Use a bright light inside the element to inspectfor damage. Check the element very carefullyfor pin holes or other damage that will allowdirt to leak through the paper media. Replaceelement if necessary.5. Without removing, visually inspect the conditionof the safety filter for damage or holes. Thesafety filter should only be removed for yearlyreplacement (or when dirty or damaged).6. Check the condition and resilience of the radialsealing surface (inside of the open end) of thefilter. Replace the filter if any cracks, tears, orother damage to the sealing surface are noted.7. Use a clean, damp cloth and wipe the interior ofthe air cleaner canister clean. Use special careto clean both the inside and outside surfacesof the outlet tube.IMPORTANT: Any dust left on the inside of theoutlet tube will go into the engine and causewear.8. Check the outside surface of the outlet tube forsmoothness and cleanness (this is the sealingsurface).9. Insert and seat the safety filter and Radialseal™element carefully into the canister, applyingpressure at the outer rim of the filter; not at theflexible center. Make sure the filter element iscompletely in place before installing the cover.IMPORTANT: DO NOT use the cover latchesto force the filter into the canister -- the covershould fit on with no extra force.NOTE: DO NOT use petroleum based lubri-cants on the sealing surfaces of the filter; usetalcum powder or dry silicone lubricants if re-quired for filter installation.Radial SealingSurfaceRadialseal™Filter ElementCanisterOutlet Tube Safety FilterAir Filter Element Replacement10. Install the cover with the word “TOP” properlyoriented to the top of the canister. Give thecover a slight twist as it reaches the canister tomake sure the tab inside the cover goes into aslot, otherwise the cover will not fit properly.Make sure both the top and bottom coverlatches are securing the cover in place.Vacuator™ValveCover LatchCover LatchOrient to Topof CanisterProper Orientation of Air Cleaner Cover11. Check the air intake hose for cuts, nicks, cracks,etc., and the hose clamps for tightness.12. Reset the air restriction indicator (press buttonon the end of the indicator).Engine Cooling SystemAir Intake SystemTo prevent engine overheating and possible enginedamage, clean grass clippings, chaff, and dirt fromthe rotating engine air intake screen after every 8hours of operation. In certain mowing conditions(dry grass, leaves, tree “cotton”, etc.), it may be nec-essary to check and clean the screen several timeseach day to prevent engine overheating.CAUTIONOperating the engine with a blocked airintake screen, dirty or plugged coolingfins, and/or cooling shrouds removed willcause engine damage from overheating.