Walker MBK23 Operator's Manual

Contents

Maintenance Instructions38MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MBK23Service Item Daily 25Hours 100Hours 200Hours 400Hours Yearly Every2 Years Ref.PageCheck Engine Crankcase Oil Level x 40Check/Clean Engine Air Cooling System* x 46Clean Grass Buildup Under Deck x 50Service Mower Blades x 53Check Security of Air Cleaner System x 52Check Air Filter Restriction Gauge x 48Check Battery Electrolyte Level x 52Lubricate Grease Fittings and Oil Points* x 43Check Transaxle Fluid x 46Check Tire Pressure x 53Check Drive Belts(Engine/PTO, Ground Drive) x 54Check Deck Gearbox Oil Seals x 54Check Safety Switch System x 55Check Security of Drive TireMounting Nuts (75 to 85 lb·ft) x 53Clean Transaxle Housing x 51Check Blade Brake Action x 55Clean Engine Cooling Fins x 47Check Air Filter Element*** x 49Check/Regap Spark Plugs x 55Change Engine Crankcase Oil** x 40Change Engine Oil Filter x 40Replace Fuel Filter x 59Change Transaxle Oil and Filter x 42Replace Air Filter Element*** x 49Check FSC Friction Lock x 56Check Fuel Lines and Clamps x 55Service Solenoid Shift Starter x 55Check PTO U-Joints for Wear/Looseness x 55Service Battery x 52Replace Fuel Lines and Clamps x 55Replace Dust Ejection Valve*** x 49Replace Ignition Wires x 55∗ More often in extremely dusty or dirty conditions∗∗ Change engine oil and filter after first 5-8 hoursof operation of a new engine (break-in period)∗∗∗ Air cleaner is remote mounted Cummins/FleetguardOptiAir™ unit, replace filter every 400 hoursCAUTIONMaintenance procedures requiring special training ortools should be performed by a trained technician.CAUTIONWhen performing maintenance with themower body raised, a safety prop shouldbe installed from back of body to chassisframe (fail-safe protection in case of failureof body lift support).