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WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MS
Service Item
Daily
25
Hours
50
Hours
100
Hours Yearly
Every
2Years
Ref.
Page
Check Engine Crankcase Oil Level
x2-4
Check/Clean Engine Air Cooling System*
x3-24
Clean Grass Buildup Under Deck
x3-28
Clean GHS Exhaust Screen*
x3-30
Clean GHS Blower*
x3-29
Service Mower Blades
x3-13
Check Security of Air Filtration Components
x3-12
Check Air Filter Restriction Gauge
x3-22
Lubricate Grease Fittings and Oil Points*
x2-15
Check Battery Electrolyte Level
x
Check Hydrostatic Transmission Fluid
x2-13
Check Tire Pressure
x3-12
Check Drive Belts (Engine, PTO, Ground Drive)
x3-14
Check PTO and Deck Gearbox Oil Seals
x3-15
Change Engine Crankcase Oil**
x2-5
Clean Fuel Filter
x3-23
Change Engine Oil Filter
x2-5
Clean Air Filter Element*
x3-22
Check Gear Axle Oil Level
x2-13
Clean Hydrostatic Transmission Cooling Fins
x3-30
Clean and Regap Spark Plug
x
Clean Engine Cooling Fins
x3-25
Check Fuel Lines and Clamps
x3-15
Replace Air Filter Element
and Vacuatorā¢ Valve***
x3-22
Service Battery
x3-12
Check/Adjust Blade/Brake Action
x3-17
Check/Adjust FSC Friction Lock
x4-59
Check/Adjust Vertical Position of
Grass-Pak
Ā®
Switch
x4-72
Change Gear Axle Oil
Ī
x2-13
Change Hydrostatic Transmission Fluid
Ī
x2-14
Replace Fuel Lines and Clamps
x3-15
ā More often in extremely dusty or dirty conditions
āā Change engine oil and filter after first 8 hours
of operation of a new engine (break-in period)
āāā Replace every year or after 6 cleanings
Ī Change every 2 years or 1000 hours
CAUTION
Maintenance procedures requiring special training or
tools should be performed by a trained technician.
CAUTION
When performing maintenance with the
mower body raised, a safety prop should
be installed from back of body to chassis
frame (fail-safe protection in case of fail-
ure of body lift support). For GHS Model,
empty grass catcher before raising body.
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