Maintenance Instructions
43
MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MC
Service Item
Daily
25
Hours
100
Hours
200
Hours
Yearly
Every
2 Years
Ref.
Page
Check Engine Crankcase Oil Level x 45
Check/Clean Engine Air Cooling System* x 54
Check Security of Air Filtration Components x 57
Check Air Filter Restriction Gauge x 53
Clean Grass Buildup Under Deck x 55
Clean GHS Exhaust Screen* x 40
Clean GHS Blower* x 56
Service Mower Blades x 58
Check Function of Oil Pressure Warning Horn x 23
Lubricate Grease Fittings and Oil Points* x 49
Check PTO Gearbox Oil Level** x 48
Check Battery Electrolyte Level x 57
Check Hydrostatic Transmission Fluid
◊
x 48
Check Tire Pressure x 58
Check Drive Belts (Jackshaft, Engine PTO,
GHS Blower, Ground Drive)
x 59
Check Gearbox Oil Seals x 60
Check Safety Switch System x 60
Check Turbine Precleaner* x 52
Check Air Filter Element *** x 53
Change Engine Crankcase Oil
Δ
x 45
Check Oil Level in Gear Axle x 48
Clean Hydrostatic Transmission Cooling Fins x 57
Clean Engine Cooling Fins x 55
Check Brake Action x
60
Check Wheel Bolt Torque (75 to 85 ft-lbs) x 58
Check/Regap Spark Plugs x 60
Change Engine Oil Filter x 45
Check Fuel Lines and Clamps x 60
Replace Air Filter Element, Safety Filter,
and Vacuator™ Valve ***
x 53
Replace Fuel Filter x 67
Service Battery x 57
Check FSC Friction Lock x 61
Service Solenoid Shift Starter x 60
Check Engine Valve Clearance x
ΔΔΔ
Change Gear Axle Oil
ΔΔ
x 48
Replace Fuel Lines and Clamps x 60
Change Hydrostatic Transmission Fluid
ΔΔ
x
ΔΔΔ
∗ More often in extremely dusty or dirty conditions
∗∗ Change PTO gearbox oil after rst 100 hours
of operation (break-in period)
∗∗∗ Air cleaner is remote mounted Donaldson Radialseal™
unit, replace lter every year
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.
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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