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Simplicity 2690444, 2690445, 5100723 SERVICING THE MOWER BLADES, A. Blade Bolt, B. Flat Washer, bolts to 70 ft.lbs. (94 Nm), Figure 22. Removing the Blade, Fig re 23. Balancing The Blade

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Maintenance

Regular Maintenance

SERVICING THE MOWER BLADES

1.Blades should be sharp and free of nicks and dents. If not, sharpen blades as described in the

following steps.

2. To remove blade for sharpening, use a 1” wrench on the flats of the spindle shaft while removing the blade mounting bolt with a 15/16” wrench (Figure 22).

3. Use a file to sharpen blade to fine edge. Remove all nicks and dents in blade edge. If blade is severely damaged, it should be replaced.

4. Balance the blade as shown in Figure 23. Center the blade’s hole on a nail lubricated with a drop of oil. A balanced blade will remain level.

5. Reinstall each blade with the tabs pointing up	Figure 22. Removing the Blade
toward deck as shown in Figure 24. Secure with a
bolt and flat washer and torque bolts to 70 ft.lbs.
(94 Nm).

WARNING	Reproduction
Mower blades are sharp. For your personal		ofr
safety, do not handle mower blades with bare			Nail
hands. Careless or improper handling of
	Not
blades may result in serious injury. For your
personal safety, blade mounting bolts must

each be installed with a flat washer then	Fig re 23. Balancing The Blade
each be installed with a flat washer then
securely tightened. Torque blade m unting
bolts to 70 ft.lbs. (94 Nm)
	Figure 24. Installing The Blade
	A. Blade Bolt
	B. Flat Washer

28	www.simplicitymfg.com

Contents

21HP Z -TurnRiders Mfg. No. D scription CitationReproductionSeries 23HP Zero-TurnRiders Page Table of Contents Safety Rules & Information Identification Numbers Safety Decals Safety Icons & Interlock System Operating Safety Read the ManualReproduction Children Slope Operation Thrown Objects Moving Parts Roll Bar Use Retaining Walls, Drop offs, and Water Overhead Obstacles Fuel and Maintenance Enclosed Areas GENERAL OPERATION TRANSPORTING AND STORAGE SLOPE OPERATION TOWED EQUIPMENT (RIDE-ONUNITS) CHILDREN EMISSIONS IGNITION SYSTEM Safety Rules and Information Safety Rules & Information ROLL BAR INSTRUCTIONS INSPECTION AND MAINTENANCE OF THE ROLL BAR SEAT BELT North American CE Models (Only) SAFETY DECALS Operational SAFETY Checks Deck Lift Pedal, Cutting Parking Brake Height Adjustment Pin & Deck Lift Lock Lever Throttle Control Choke Ground Speed Levers PTO (Power Take Off) Switch Ignition Switch Operation GENERAL OPERATING SAFETY STOPPING THE RIDER Smooth Travel Forward Travel Practice Reverse Travel Practice Practice Turning Around a Corner Practice Turning In Place Executing an End-Of-RowZero Turn RAISE & LOWER THE ROLL BAR AVOID SERIOUS INJURY OR DEATH FROM ROLL OVER: Keep roll bar in the raised position and use seat belt THERE IS NO ROLL OVER PROTECTION WHEN THE ROLL BAR IS DOWN Lower the roll bar only when necessary and NEVER remove it Tall Grass Requires Incremental Cutting Height of Grass When and How Often to Mow Operation Mowing Patterns Proper Broadcast Mowing Proper Mulching SAFETY ITEMS Before Every Spring Each CHECK TIRE PRESSURES Tire Pressure Figure 14. Checking Tire Pressure CHECKING / ADDING FUEL Lubricating the Front Casters Cleaning the Battery and Cables SERVICING THE MOWER BLADES Figure 22. Removing the Blade Mower blades are sharp. For your personal safety, do not handle mower blades with bare hands. Careless or improper handling of TROUBLESHOOTING THE RIDER PROBLEM CAUSE REMEDY Troubleshooting TROUBLESHOOTING THE MOWER TROUBLESHOOTING COMMON CUTTING PROBLEMS SEAT ADJUSTMENT GROUND SPEED CONTROL LEVER ADJUSTMENT Seat Adjustment Figure 25. Seat Adjustment Troubleshooting, Adjustment & Service PARKING BRAKE ADJUSTMENT Do not adjust the spring to be shorter than 1-15/16”(4,9 cm) when compressed. This may damage the brake mechanism Figure 28. Parking Brake Adjustment REAR SUSPENSION ADJUSTMENT POSITION #1 POSITION #2 (FACTORY SET) To adjust the spring pre-load: Blade Brake Check RETURN-TO-NEUTRAL NEUTRAL ADJUSTMENT Figure 33. Neutral Adjustment (RH side shown) A. Adjustment Linkage Rod Troubleshooting, Adjustment & Service DECK LEVELING ADJUSTMENT Figure 36. Check Lift Rod Timing Figu e Adjust Lift Rod Timing Figure HYDRAULIC PUMP DRIVE BELT REPLACEMENT 8 3/8” (21,2 cm) Figure 40. Hydraulic Pump Drive Belt MOWER BELT REPLACEMENT To avoid damaging belts, DO NOT PRY BELTS OVER PULLEYS Figure 41. Mower PTO Belt A. Idler Arm B. Stationary Idler Pulley 21 HP Briggs HydroGear PG-3H / HGM-12C 23 HP Briggs BELTS AND BLADES: & Stratton 48” Mower 23 HP Briggs & Stratton 52” Mower