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Maintenance
Continued safe and dependable operation requires routine maintenance.
Recommended Maintenance Schedule
Service Item
Check blade and engine mounting fasteners
Fasteners
frequently. Keep all nuts, bolts and screws tight to
ensure safe operation.
Remove and clean each mowing season or every
Air Filter
25 hours. More frequently if operating
conditions are dusty.
Spark Plug
Clean, inspect and gap. Replace if necessary.
Housing
Clean built-up grass clippings and dirt.
Sharpen or replace; maintain more frequently if
Blade
edge is dulled quickly in rough or sandy conditions.
Check stopping time every 50 hours or at start of
each mowing season. Blade must stop within
Blade Brake
3 seconds of releasing bail; if not see your
Authorized Lawn-Boy Service Dealer for repair.
Clean every 50 hours or at least once each mowing
Exhaust Ports
season.
Check for leakage and/or deterioration of fuel hose.
Fuel System
Replace if necessary.
Clean grass clippings, debris or dirt that clog
Cooling System
engine air cooling fins and starter. Clean more
frequently under dirty or high chaff conditions.
Service Operation
5
25
50
Hours
Hours
Hours
X
X
X
X
X
X
X
X
100
Hours
X
GB–15
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