48Section 8: TroubleshootingZ44 & Z52 (S/N 526171 & Above) Accu-Z Razor® Zero Turn Mowers 357-187M 7/22/10Table of ContentsSection 8: TroubleshootingSymptoms Probable Causes Suggested RemediesStarting motor does not crank Control arms are not in park position orpark switch is out of adjustmentPlace control arms in neutral and full out. Re-adjust park position switchBlade Engagement switch is engaged Disengage blade switchWeak or dead battery Recharge or replaceFor additional causes See engine manualEngine cranks but does not start No fuel in fuel tank Fill fuel tankFuel tank valve turned to “OFF” Select a fuel tank with gasolineSee Figure 5-9 on page 36Fuel tank valve turned to an empty tank Switch Left/Right tank valveSee Figure 5-9 on page 36Fuel filter or fuel line is plugged Replace fuel filter or fuel lineNumerous See engine manualEngine:Runs with continuous misfiring orengine runs unevenly or erraticallyNumerous See engine manualGrass cutting is ragged or uneven Dull, bent or broken cutting blades Sharpen or replace cutting bladesDeck full of wet sticky grass Clean underside of deckCutting Blades are not operating at fullengine speedIncrease engine rpms to full speed (3600 rpm)Check engine speed with Land Pride InductiveTachometer, Part No. 890-909CBelt over center take-up is loose Tension over center take-upWorn or broken belt Replace worn and broken beltsDeck is not level Check air pressure in all 4 tiresMake level adjustments to the deckLoss of power or system will notoperate in either directionBypass valve rods are disengaged Engage bypass valve rodsLinkage bolt is loose or lost Replace linkage boltBad pump belt and/or idler pulley Replace belt and/or idler pulley Tighten idlerpulley if looseLoose or lost idler pulley bolt Retention idler pulley and retighten or replaceidler boltRestrictions in air cleaner Service air cleanerInternal interference or leakage in Hydro-DriveSee your dealerInsufficient hydraulic oil supply Have dealer check hydro-drivePoor compression See your dealerSteering linkage needs adjustment Adjust linkageAir in system Check filter & fittingsFor additional causes See engine manualOverheating Air intake screen or cleaning fins clogged Clean screen and finNot operating engine at rated speed Increase engine speed to 3600 rpmFor additional causes See engine manual