MAINTENANCE & ADJUSTMENTS This section explains when and how to perform routine
inspection, service, and adjustments for do-it-yourself
maintenance.
More difficult maintenance tasks should be done by your
dealer. Your dealer is best equipped and staffed to provide
the level of service and safety you and your mower deserve.
Maintenance Precautions 36
Emission Controls System 37
Source of Emissions . . . . . . . . . . . . . . . . 37
Proper Maintenance is the Owner’s Responsibility 37
Maintenance Schedule 39
Engine Maintenance 40
Engine Oil Change . . . . . . . . . . . . . . . . . 40
Air Cleaner Service . . . . . . . . . . . . . . . . . 42
Spark Plug Service . . . . . . . . . . . . . . . . . 43
Spark Arrester Service (optional equipment) . . . 45
Carburetor Adjustment . . . . . . . . . . . . . . . 46
Carburetor Modification for High Altitude . . . . . 46
Control Cable Adjustments 47
Flywheel Brake Lever Cable Adjustment . . . . . 47
Drive Clutch Cab/e Adjustment (HRM275SDA) . . 48
Throttle Cable Adjustment . . . . . . . . . . . . . 49
Gear Shift Cable Adjustment (HRM275SDA) . . . 50
Blade Removal and Installation 51
Blade Removal . . . . . . . . . . . . . , . . . . . 51
Blade Ins talla tion . . . . . . . . . . . . . . . . . . 52
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