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Maintenance Instructions
51
MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL T25i
Service Item
Daily
25
Hours
100
Hours
200
Hours
Yearly
Every
2 Years
Ref.
Page
Check Engine Crankcase Oil Level x 53
Check/Clean Engine Air Cooling System* x 60
Check Security of Air Filtration Components x 66
Check Air Filter Restriction Gauge x 61
Clean Grass Buildup Under Deck x 64
Clean GHS Exhaust Screen* x 45
Clean GHS Blower* x 65
Service Mower Blades x 68
Check Functions of Instrument Panel and
Warning Horn
x 26
Lubricate Grease Fittings and Oil Points* x 57
Check PTO Gearbox Oil Level** x 56
Check Battery Electrolyte Level x 67
Check Hydrostatic Transmission Fluid
◊
x 57
Check Tire Pressure x 68
Check Drive Belts (Jackshaft, Engine PTO,
GHS Blower, Ground Drive)
x 69
Check Deck Gearbox Oil Seals x 69
Check Safety Switch System x 70
Check Turbine Precleaner* x 60
Check Blade Brake Action x 70
Check Air Filter Element*** x 61
Check Oil Level in Gear Axle x 56
Clean Hydrostatic Transmission Cooling Fins x 66
Clean Engine Cooling Fins x 63
Change Engine Crankcase Oil
Δ
x 54
Check Wheel Bolt Torque (75 to 85
lb·ft)
x 68
Change Engine Oil Filter
Δ
x 54
Check/Regap Spark Plugs x 69
Replace Air Filter Element, Safety Filter,
Dust Ejection Valve***
x 61
Replace Fuel Filter x 76
Service Battery x 67
Check FSC Friction Lock x 70
Service Solenoid Shift Starter x
ΔΔΔ
Check PTO U-Joints for Wear/Looseness x 70
Check Fuel Lines and Clamps x 69
Change Gear Axle Oil
ΔΔ
x 56
Change Hydrostatic Transmission Fluid
ΔΔ
x
ΔΔΔ
Replace Fuel Lines and Clamps x 69
Replace Ignition Wires x 69
∗ More often in extremely dusty or dirty conditions (refer to notes about air cleaner element in
IMPORTANT TIPS FOR CARE OF THE KOHLER ENGINE)
∗∗ Change PTO gearbox oil after rst 100 hours of operation (break-in period)
∗∗∗ Air cleaner is remote mounted Donaldson Radialseal™ unit, replace lters every year and
dust ejection valve every year or when worn or damaged
Δ Change engine oil and lter after rst 5 hours of operation of a new engine (break-in period)
ΔΔ Change every 2 years or 1000 hours
ΔΔΔ See your Walker dealer for this service or refer to the Walker Service Manual
◊
Hydrostatic transmissions are sealed - DO NOT OPEN RESERVOIR CAPS - refer to Hydrostatic
Transmission Fluid
CAUTION
Maintenance procedures requiring special training or
tools should be performed by a trained technician.