Maintenance Instructions; Maintenance Schedule Chart - Walker MBSY Operator's Manual

Maintenance Instructions

MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MBSY
Service Item
Check Engine Crankcase Oil Level
Check Coolant Level in Radiator
and Overflow Tank
Clean Radiator Screen and Cooling Fins*
Check Security of Air Filtration Components
Check Air Filter Restriction Gauge
Clean Grass Buildup Under Deck
Check Transaxle Cooling Fan Condition
Service Mower Blades
Check Function of Warning Lights and Horn
Lubricate Grease Fittings and Oil Points*
Check Battery Electrolyte Level
Check Transaxle Oil Level (in Reservoir)
Check Tire Pressure
Check Drive Belts (Engine Alternator,
Engine PTO, Ground Drive)
Check Operation of Safety Interlock Switches
Check Operation of Turbine Precleaner Fan*
Check Air Filter Element**
Change Engine Crankcase Oil***
Check Engine Alternator Belt Tension
Check Blade Brake Action
Check Security of Drive Tire
Mounting Nuts (75 to 85 ft-lbs.)
Check FSC Friction Lock
Change Engine Oil Filter
Check Radiator Hoses and Clamps
Change Transaxle Oil and Filter
Replace Fuel Filters (2)/Clean Water Separator
Replace Air Filter Element
and Dust Ejection Valve**
Check Fuel Lines and Clamps
Flush Radiator and Change Coolant
Service Battery
Check PTO U-Joints for Wear/Looseness
Adjust Engine Intake/Exhaust Valve Clearance
Replace Radiator Hoses and Clamps
Replace Fuel Lines and Clamps
Lap Engine Intake/Exhaust Valve
Seats (if required)
∗ More often in extremely dusty or dirty conditions
(Refer to notes about air cleaner element in
IMPORTANT TIPS FOR CARE OF THE
YANMAR ENGINE)
∗∗ Air cleaner is remote mounted Enginaire
replace filter(s) every 400 hours and dust ejection
valve every two years or when worn or damaged
∗∗∗ Change engine oil and filter after first 35 hours
of operation of a new engine (break-in period)
Δ
See Authorized Yanmar Engine Dealer for this service
Maintenance procedures requiring special training or
tools should be performed by a trained technician.
25 100
Daily Hours Hours
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
When performing maintenance with the
™
unit,
tractor 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).
CAUTION
200 400
Hours Hours Yearly
x
x
x
x
x
x
x
x
x
x
CAUTION
Every Ref.
2 Years Page
43
55
51
56
49
52
54
57
25
45
56
45
56
58
59
49
50
44
55
58
24
59
44
58
48
65
50
58
52
56
58
Δ
x 58
x 58
x
Δ
41