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manual abstract
(0.65) Fuel Unleaded Unleaded Unleaded Unleaded Primer Bulb N/A N/A N/A Standard Throttle/Choke Control Standard Standard Standard N/A Starting Recoil Recoil Recoil Recoil Cylinder Bore Cast Iron Sleeve Aluminum Cast Iron Sleeve Aluminum Pressurized Oil System Standard Splash Pressurized Splash Governed RPM 2900+/-100 3000+/-100 3000+/-100 3000+/-100 Crank Case Capacity - oz (L) 27 (0.8) 17 (0.5) 17 (0.5) 22 (0.65) Air Cleaner Dual Element Dual Element Dual Element Paper Element Engine Oil Type SAE 30 SAE 30 SAE 30 SAE 30 Spark Plug Gap 0.03 0.03 0.03 0.03 Differential Standard Standard Standard N/A Variable Speeds-MPH (KPH) 0-4 (0-6.4) 1.55, 2.98, 3.8 (2.48, 4.77, 6.08) 0-3.5 (0-5.6) N/A Mower Deck Gauge 14 Gauge Stamped Steel 14 Gauge Stamped Steel 14 Gauge Stamped Steel 14 Gauge Stamped Steel Baked Powder Paint Standard Standard Standard Standard Cutting Width - in (cm) 21 (53.3) 21 (53.3) 21 (53.3) 21 (53.3) Cutting Height - in (cm) 6 Positions 6 Positions 1.25-3.5 6 Positions 6 Positions 1.25-3.5 (3.2-8.9) 1-3.5 (3.2-8.9) 1.25-3.5 (3.2-8.9) 1.25-3.5 (3.2-8.9) Folding Handlebar Standard One Piece Standard One Piece Standard One Piece Standard One Piece Adjustable Handlebar 4 Position 4 Position 4 Position 4 Position Front Wheel Diameter - in (cm) 7.0 (17.8) 8 (20.3) 7.5 (19.1) 7.5 (19.1) Rear Wheel Diameter - in (cm) 10.0 (25.4) 8 (20.3) 10.5 (26.7) 10.5 (26.7) Side Discharge Standard Standard Standard Standard Bagger Standard Standard Standard Standard Mulching Capability Standard Standard Standard Standard Attachments (* denotes it comes with unit) Dethatcher 71102400 71102400 71102400 71102400 Mulchmaster Package * 71102700 * * Leaf Shredder 71102800 71103700 71102800 71102800 Side Discharge Chute * * * * Rear Bagger * * * * Swivel Wheel Kit 71103300 71104000 71103300 71103300 Rear Discharge Chute 71103200 71103200 71103200 71103200 Rear Roller Kit 71103400 71103400 71103400 71103400 Mulching Kit 71103500 71103500 71103500 71103500 3 - 19 Model Number Model Number 911515 911516 911517 Description Name LM21S LM21SE LM21SW LM21SC Engine Manufacture Briggs & Stratton Briggs & Stratton Briggs & Stratton Robin Cycles Four Four Four Four HP (3600RPM) 4.37 4.37 4.37 5.3 Fuel Tank Capacity - qt (L) 22 oz. (0.65) 22 oz (0.65) 22 oz (0.65) 2 (1.9) Fuel Unleaded Unleaded Unleaded Unleaded Primer Bulb Standard Standard Standard N/A Throttle/Choke Control N/A N/A N/A Standard Starting Recoil Electric/Recoil Recoil Recoil Cylinder Bore Aluminum Aluminum Aluminum Cast Iron Sleeve Pressurized Oil System Splash Splash Splash Pressurized Governed RPM 3000+/-100 3000+/-100 3000+/-100 3000+/-100 Crank Case Capacity - oz (L) 22 (0.65) 22 (0.65) 22 (0.65) 17 (0.5) Air Cleaner Paper Element Paper Element Paper Element Dual Element Engine Oil Type SAE 30 SAE 30 SAE 30 SAE 30 Spark Plug Gap 0.03 0.03 0.03 0.03 Differential Standard Standard N/A Standard Variable Speeds-MPH (KPH) 0-4 (0-6.4) 0-4 (0-6.4) N/A 0-3.5 (0-5.6) Mower Deck Gauge 14 Gauge Stamped Steel 14 Gauge Stamped Steel 14 Gauge Stamped Steel 14 Gauge Stamped Steel Baked Powder Paint Standard Standard Standard Standard Cutting Width - in (cm) 21 (53.3) 21 (53.3) 21 (53.3) 21 (53.3) Cutting Height - in (cm) 6 Positions 6 Positions 6 Positions 6 Positions 1.25-3.5 (3.2-8.9) 1.25-3.5 (3.2-8.9) 1.25-3.5 (3.2-8.9) 1.25-3.5 (3.2-8.9) Folding Handlebar Standard One Piece Standard One Piece Standard One Piece Standard One Piece Adjustable Handlebar 4 Position 4 Position 4 Position 4 Position Front Wheel Diameter - in (cm) 7.5 (19.1) 7.0 (17.8) 7.5 (19.1) 7.5 (19.1) Rear Wheel Diameter - in (cm) 10.5 (26.7) 10.0 (25.4) 10.5 (26.7) 10.5 (26.7) Side Discharge Standard Standard Standard Standard Bagger Standard Standard Standard Standard Mulching Capability Standard Standard Standard Standard Attachments (* denotes it comes with unit) Dethatcher 71102400 71102400 N/A 71102400 Mulchmaster Package * * * 71102700 Leaf Shredder 71102800 71102800 71102800 71102800 Side Discharge Chute * * * * Rear Bagger * * * * Swivel Wheel Kit 71103300 71103300 * 71103300 Rear Discharge Chute 71103200 71103200 71103200 71103200 Rear Roller Kit 71103400 71103400 71103400 71103400 Mulching Kit 71103500 71103500 71103500 71103500 3 - 20 SECTION 4 - GENERAL MAINTENANCE & ADJUSTMENTS SECTION 4 - GENERAL MAINTENANCE & ADJUSTMENTS CONTROLS AND FEATURES OM0032 1. Engine Control 2. Ignition Switch (Electric Start Models) 3. Speed Selector (Self-propelled) 4. Primer (Briggs Engine) 5. Side Discharge Cover 6. Side Discharge Deflector 7. Cutting Height Levers (2 Rear Wheel Adjusters, 2 Front Wheel Adjusters 8. Rear Door 9. Adjustable and Folding Handlebars 10.Grass Bag 11.Recoil 12.Wheel Drive Control 13.Mulchmaster™ Plug 14.Throttle Control (Robin Engines) 15.Handlebar Adjustment Holes 16.Speed Indicator (Self-propelled) Figure 2 1 2 3 4 56 7 8 9 10 11 12 13 14 15 16 7 4 - 21 4.24.2 Place unit on a flat level surface. ALWAYS stop engine. Assure unit is secure and will not tip over. Strap and clamp onto be...
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