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Hydrostatic Zero-Turn
Residential Riding Mower
Turf Equipment
MODEL
20HP Z-Force 44
23HP Z-Force 50
OPERATOR’S AND SERVICE MANUAL
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TABLE OF CONTENTS Foreword. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 General Safety Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 A. General Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 B. Slope Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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FORWARD The Hydrostatic Zero-Turn Riding Mower provides superb maneuverability and mid-mount cut- ting. The machine incorporates many safety features that should be studied by all operators before use. The list of safety precautions should receive particular attention. This manual presents all of the operating and maintenance instructions necessary to keep your mower at peak efficiency. If operated and maintained properly, your mower will give dependable service. CAUTION: Only thoroughly traine
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WARNING • The engine exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. • This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, brush-covered, or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any). If a spark arre
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should not be driven up or down a ramp onto • Use slow speed. Choose a low enough speed a trailer or truck under power, because the so that you will not have to stop while on the unit could tip over causing serious personal slope. injury. The unit must be pushed manually on • Follow the manufacture’s recommendations for a ramp to load or unload properly. counterweights with attachments to improve sta- 17. Never make a cutting height adjustment while bility. the engine is running if the oper
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7. Remove the key when the machine is left Repair the damage before restarting and unattended to prevent unauthorized opera- operating the machine. tion. 9. Grass catcher components are subject to wear, damage and deterioration, which could D. SERVICE expose moving parts or allow objects to be thrown. For your safety protection, frequently 1. Use extreme care in handling gasoline and check the components and replace with man- other fuels. They are extremely flammable ufacturers recommen
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SAFETY DECALS AND LABELS DANGER Belt KEEP HANDS AND FEET AWAY. DO NOT OPERATE MOWER UNLESS CHUTE DEFLECTOR Routing OR ENTIRE GRASS CATCHER IS IN ITS PROPER PLACE. S30503 ASSEMBLE CHUTE DEFLECTOR TO THIS UNIT BEFORE OPERATING. Part Number: 777I22421 (for 44” Deck) Part Number: 777S30503 To unlock, pull part of handle inward. Lift unlocked handle to increase cutting height. To lock, release upper part of handle to move outward. I22093 Part Number: 777I22093 Part Number: 777S32161 Part Numbe
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SPECIFICATIONS Engine: 20HP & 23HP Kohler Type: Vertical air cooled V-Twin Air Cleaner: Paper element Lube System: Pressurized with oil filter, drain valve with hose Starter: 12-volt electric Traction Drive: Engine to two variable-speed integrated hydraulic pump and wheel motors on each drive wheel Cutter Deck;Drive: 44" & 50” belt driven Clutch: Electric Deck Lift: Hand lever w/ lock for height adjustment Cutting Height: 1-1/2" to 4" No. of Blades 3, belt-driven, power take-off from engine Con
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OPERATING INSTRUCTIONS Figure. 1 Figure. 2 Choke Engine throttle Electric Blade Hour Meter Clutch Switch Ignition Switch A. General maintain the uphill side lap bar “essen- tially” in a fixed position. 1. When Mowing: k. Be careful when crossing gravel paths or a. Keep adults, children, and pets away from roadways. Always turn off the blade clutch the area to be mowed. switch and wait until the blades stop rotat- b. When operating this mower, in the forward ing and raise the cutting deck to
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2. Safety Awareness when Mowing next and each subsequent time that the a. Do not operate on steep slopes, those area is mowed. above 15 degrees (27% slope). B. Controls b. Avoid turning downhill if possible, use extra 1. Engine Ignition and Start Switch: (See Fig- care and go slowly. ure 1.) Located on the instrument housing c. Avoid turning when going downhill, traction below the right side of the operator’s seat. is at a minimum going downhill. When the key is inserted and turned clock-
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Steering Levers Brake Figure. 4 Fuel Shutoff Valve Figure. 3 Deck Lift Handle 8. Seat Adjustment Lever: The Seat Adjust- 4. Electric Blade Clutch Switch: (See Figure ment Lever is located beneath the seat. The 1.) Located on the right side of the mower Seat Adjustment Lever is used to move the beside the ignition switch. This is an “on/off” seat forward and backward. To place the seat push-pull switch that controls the electric in the desired position pull the seat adjust- blade clutch wh
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plugs and using the transport lever, lower C. Initial Adjustments the mowing deck into the cutting position. 1. Check the fluid levels and tires: b. Using a ruler, pencil and paper, measure and note the distance from the paved sur- Note: These checks should be made daily, face to the bottom edge of the mowing before starting the engine. blade at the front and the back of the deck a. Fuel: Using a good grade of unleaded, on each side of the mower. (Four dimen- regular gasoline, fill the fue
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have been attained. If the dimensions are 4. That no non-approved devices are not correct, repeat steps “c.” through “f.” installed. above. 5. That all safety signs and decals are properly installed and legible. 5. Lubricate all fittings listed in the mainte- e. This is a one person machine, operator nance section. only! Riders are not permitted under any circumstance! D. Zero Turn Break-In And Operating f. To start the engine on the machine: Procedures 1. Make sure the park brake is set to
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(toward center of machine). Slowly, move the same side that was moved — I.E., to both lap bars toward the front of the turn counter-clockwise (to the LEFT), machine until the machine begins to move the LEFT lap bar rearward more move forward — release the lap bars than the right side, and to turn clockwise and the machine should stop. The more (to the RIGHT), move the RIGHT lap bar that the lap bars are moved toward the rearward more than the left side. NOTE: front of the machine, th
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h. Gasoline Engine: Once the engine starts, b. Use the Deck Lift Handle to raise the mow- move the choke/throttle to the detent as ing deck to the transport position. the engine warms. c. Drive the mower to the cleanup or storage area. 4. Operating the Mower: Operating a zero-turn- d. Move the throttle to slow. ing-radius mower is not like operating a trac- e. Place the steering levers in the neutral tor-type riding mower. The zero-turning-radius position. mower is much more maneuverable and
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Linch Pins Figure. 6 “J” Pin allow the underside of the cutting deck to Note: There is a certain amount of spring thoroughly rinse. tension due to the weight of the deck. When j. Move the PTO control to the “OFF” posi- removing the lift linkage from the deck the ten- sion of the springs will go from the deck to the tion. lift handle. Not capturing the lift handle while k. Turn the engine off. removing the lift linkage from the deck will l. Turn the water off, and detach the hose cause it
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WARNING: Never mow with dull blades! Blades that are bent should be replaced! The cutting blades are sharp and can cause severe injury. Wrap the cutting surface of the blade with a rag to avoid injury. 3. Sharpening the Blade: a. Set the parking brake. b. Clean any debris from the blades. Keep blades sharp and free of build up at all times. c. Sharpen blades evenly at the original 30° angle to maintain balanced cutting blades. Do not sharpen the underside of the blades. Use a electric blade
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c. Store the battery with a full charge. A dis- charged battery will freeze (refer to the table below). Specific Gravity Freezing Temp (°F) 1.265 -71 Hydrostatic Transaxles 1.250 -62 1.200 -16 1.150 5 1.100 16 Figure 9 d. Recharge battery when ever the specific gravity value is less than 1.225 D.Electrical Circuit 4. Installing the Battery Note: The battery is delivered from the fac- Danger: tory fully charged and filled with electrolyte. Read General Safety Precautions Nos. 9 and 10. a. Atta
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must be off, the parking brake must be ing brake switch must be repositioned or engaged, and both steering levers must be perhaps replaced. If the engine does not opened-out to the side in the neutral position. start, engage the parking brake and start Once the engine is started, the seat must be the engine. Swing one steering lever up to occupied and the parking brake must be the operating position and the engine released before either of the steering levers is should stop. If the en
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stop when you dismount from the opera- that leaks about an inch off the ground. tor’s seat, the seat switch must be Loosen and remove the lug nuts and remove replaced. the wheel. Mount a wheel and tire, replace the e. Electric PTO Clutch: This clutch operates lug nuts, and using a torque wrench, tighten when the engine is running, the operator is them to 60 ± 10 ft-lbs. in the operator’s seat and the blade clutch If the leaking tire is on a front caster wheel, switch is turned on. This elec
