Land Pride ZT60 Operator's Manual

Also see for ZT60: Brochure Service manual

Contents

Land Pride ZT60 Operator's Manual Manual pdf 46 page image

44Section 5: Maintenance & LubricationZT60 & ZT72 Accu-Z® Zero Turn Mowers 357-103M 9/03/10Table of ContentsEngine Air Filter HandlingRefer to Figure 5-15 and Figure 5-17:Prevent costly and non-warrantable premature enginedamage by maintaining the air filter properly. Manyengine problems are due to improper handling of the airfilter. Dust and dirt that gets past the air filter will damageengine cylinder, piston and bearings in a few hours.Avoiding the following common mishandling:• Over servicing• Improper installation• Damaged air filtering system• Incorrect air filter elementOver ServicingOver servicing occurs when an air filter element isinspected and/or replaced too often. Dust and dirt can falloff the filter element onto the canister where it can besucked into the intake system. Only a few grams of dirtgetting into an engine during each filter inspection canprematurely produce dust induced engine damage. Apartially dirty air filter element is not harmful to theengine.The air filter element should be changed before itbecomes too dirty and restricts air flow to the enginehindering its performance. Replace the air filter elementimmediately should this happen. Engines that do not getproper amounts of air will draw in excessive amounts ofgas causing premature engine damage.The frequency of the air filter needing changing is largelydetermined by operating conditions. Dusty conditions willrequire more frequent servicing.A dirty filter element should always be replaced with anew element. Improper cleaning procedures can get duston the inside of the filter causing dirt induced and enginedamage. The air filter warranty expires upon cleaningor servicing a used filter in any manner. Land Pridedoes not warranty a dust induced engine damage if aused air filter element has been cleaned or servicedin any manner.Improper InstallationImproper installation occurs when dust leaks past theseals. The filter element must be aligned within thecanister and properly seated on both ends to prevent dirtfrom entering the engine.Damaged Air Filtering SystemA damaged air filtering system occurs from mishandlingof the filter element and operating the mower in areasthat could damage the canister.Banging and/or bumping the filter element against a solidobject such as a tire or blowing the element with air candamage the seals and/or force dust and dirt particlesthrough the filter media creating a hole for dirt to passthrough to the engine.Driving the mower carelessly over rough terrain, juttingsticks, heavy brush and severe rocks can damage the aircleaner canister. Periodically inspect the outside of theair cleaner canister for external damage and replace ifnecessary.Incorrect Air Filter ElementThe air filter must remain intact to block passage of dirtand foreign particles. It must be of sufficient size andconstruction to withstand stresses, caused by rapidcycling of air volume demanded by the engine, withoutcracking or tearing under fatigue and pressure. Its filterelements must have the correct media composition, filterarea, micron size and dimensions to properly filter the airof dirt while at the same time passing sufficient air to theengine.Land Pride and the engine manufacturers have carefullyselected a reliable filter designed to fit these needs.Always use genuine Land Pride filters. Failure to useoriginal equipment replacement parts is analteration and will not be considered for warranty inthe event of a dust induced engine damage. See“ZT60 & ZT72 Accu-Z® (Engine Specifications)” onpage 52 for Land Pride air filter replacement numbers.Burp Valve InformationRefer to Figure 5-18:The burp valve is a highly important part of your dust filter. It opens and shuts expelling collected dust and water asthe engine’s vacuum pressure pulsates. It also dumps dust collected in the filter canister when the engine stopsrunning. If the burp valve is damaged, dust that would normally be discharged from the canister can collect on thefilter element causing its life to be shortened. Replace the burp valve if it is open, cracked, torn or missing.Figure 5-18CrackedOpen Torn MissingNormal27786