Maintenance Instructions

CAUTION

Maintenance procedures requiring special training or tools should be performed by a trained technician.

MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL T25i

Service Item

 

25

100

200

 

Every

Ref.

Daily

Hours

Hours

Hours

Yearly

2 Years

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

x

 

 

 

 

 

26

Warning Horn

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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,

 

x

 

 

 

 

69

GHS Blower, Ground Drive)

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

x

 

 

 

54

Check Wheel Bolt Torque (75 to 85 lb·ft)

 

 

x

 

 

 

68

Change Engine Oil Filter

 

 

 

x

 

 

54

 

 

 

 

 

 

 

 

Check/Regap Spark Plugs

 

 

 

x

 

 

69

Replace Air Filter Element, Safety Filter,

 

 

 

 

x

 

61

Dust Ejection Valve***

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace Fuel Filter

 

 

 

 

 

x

 

76

Service Battery

 

 

 

 

 

x

 

67

Check FSC Friction Lock

 

 

 

 

x

 

70

Service Solenoid Shift Starter

 

 

 

 

x

 

 

Check PTO U-Joints for Wear/Looseness

 

 

 

 

x

 

70

Check Fuel Lines and Clamps

 

 

 

 

x

 

69

Change Gear Axle Oil

 

 

 

 

 

 

x

56

Change Hydrostatic Transmission Fluid

 

 

 

 

 

x

 

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 first 100 hours of operation (break-in period)

∗∗∗Air cleaner is remote mounted Donaldson Radialseal™ unit, replace filters every year and dust ejection valve every year or when worn or damaged

Change engine oil and filter after first 5 hours of operation of a new engine (break-in period)

Change every 2 years or 1000 hours

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

51