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WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MC
Service Item
Daily
25
Hours
100
Hours
200
Hours Yearly
Every
2Years
Ref.
Page
Check Engine Crankcase Oil Level x 2-3
Check/Clean Engine Air Cooling System* x 3-24
Check Security of Air Filtration Components x 3-12
Check Air Filter Restriction Gauge x 3-22
Clean Grass Buildup Under Deck x 3-28
Clean GHS Exhaust Screen* x 3-30
Clean GHS Blower* x 3-29
Service Mower Blades x 3-13
Check Function of Oil Pressure Warning Light x
Lubricate Grease Fittings and Oil Points* x 2-15
Check PTO Gearbox Oil Level** x 2-10
Check Battery Electrolyte Level x
Check Hydrostatic Transmission Fluid x 2-13
Check Tire Pressure x 3-12
Check Drive Belts (Jackshaft, Engine PTO,
GHS Blower, Ground Drive)
x3-14
Check Gearbox Oil Seals x 3-15
Check Turbine Precleaner* x 3-18
Check/Clean Air Filter Element
Δ
x3-22
Change Engine Crankcase Oil
ΔΔ
x2-5
Check/Adjust Blade Clutch (PTO)/
Brake Action
x x 3-17
Check Oil Level in Gear Axle x 2-13
Clean Hydrostatic Transmission Cooling Fins x 3-30
Clean Engine Cooling Fins x 3-24
Check/Regap Spark Plugs x
Change Engine Oil Filter x 2-5
Check Fuel Lines and Clamps x 3-15
Replace Air Filter Element
and Vacuator™ Valve
Δ
x3-22
Replace Fuel Filter x4-24
Service Battery x3-12
Check/Adjust FSC Friction Lock x 4-59
Service Solenoid Shift Starter x 3-15
Check Engine Valve Clearance x 3-15
Change Gear Axle Oil
ΔΔΔ
x2-13
Replace Fuel Lines and Clamps x 3-15
∗ More often in extremely dusty or dirty conditions
∗∗ Change PTO gearbox oil after first 100 hours
of operation (break-in period)
Δ Air cleaner is remote mounted Donaldson Radialseal™
unit, replace filter every year or after 6 cleanings
ΔΔ Change engine oil and filter after first 5 hours of
operation of a new engine (break-in period)
ΔΔΔ 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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