TM
Vanguard
Twin-Cylinder OHV Liquid-Cooled Engine
Section 1 - General Information
MAINTENANCE SCHEDULE
Daily
Check Oil
Level
Check For Oil
Leaks
Change Oil
Change Oil
Filter
Check
Coolant
Change
Coolant
Check Fan
Belt
Clean Air
Filter
Replace Air
Filter
Check Valve
Clearance
Check
Battery
Electrolyte
Change
Spark Plugs
Change Fuel
Filter
Clean Spark
arrestor
Change oil after first 50 hours of use
*
100 hours or every season. Change oil every 50
hours when operating the engine under heavy load orin
high temperatures.
Clean more often under dusty conditions or when
**
airborne debris is present. Replace air cleaner
parts, if very dirty.
50 Hours
X
X
X
X
, then every
100 Hours
250 Hours
X*
X*
X
X**
X
X
If an extended life coolant is used, interval may be
***
increased to once every 3000 hours.
600 Hours
Yearly
X***
X**
X
X
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