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Operator Manual MZ28T/ 966613201 Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. English...
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To implement improvements, specifications and designs can be altered without prior notification. Note that no legal demands can be placed based on the information contained in these instructions. Use only original parts for repairs. The use of other parts voids the warranty. Do not modify or install non-standard equipment to the unit without consent from the manufacturer.
CONTENTS INTRODUCTION ............5 Stopping the Engine .........32 Driving and Transport on Public Roads .....5 Mowing Tips .............33 Towing ..............5 Moving Machine By Hand ........34 Operating ............5 Bypass Linkages .........34 Good Service .............6 MAINTENANCE ............35 Maintenance Schedule ........35 SYMBOLS AND DECALS .........7 SAFETY ..............9 Battery ..............37 Safety Instructions ..........9...
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WARNING! Failure to follow cautious operating practices can result in serious injury to the operator or other persons. The owner must understand these instructions, and must allow only trained persons who understand these instructions to operate the mower. Each person operating the mower must be of sound mind and body and must not be under the influence of any mind altering substance.
INTRODUCTION Congratulations Towing Thank you for purchasing a Husqvarna ride-on mower. If machine is equipped with a tow hitch, use extreme This machine is built for superior efficiency to rapidly caution when towing. Never allow children or others in mow primarily large areas. A control panel that is or on the towed equipment.
INTRODUCTION Good Service Husqvarna’s products are sold all over the world and only in specialized retail stores with complete service. This ensures that you as a customer receive only the best support and service. Before the product is delivered, the machine has, for example, been inspected and adjusted by your retailer.
SYMBOLS AND DECALS These symbols are found on the machine and in the operator’s manual. Study them carefully so that you know what they mean. WARNING! IMPORTANT INFORMATION Xxxx xxxxxx xxxxx xxxx xxxxxxxxx Xxxx xxxxxx xxxxx xxxx xxxxxxxxx xxxxxx xxxxxx xxxxxxxxx. xx xxxxxxxx xxxx xxxxxxxxx.
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SYMBOLS AND DECALS Read Shut off engine and Keep a safe Use on slopes No passengers Operator’s remove key before distance from no greater Manual performing any the machine than 10° maintenance or repair work Whole body Severing of fingers Do not open or Careful backing up, Careful going...
SAFETY Safety Instructions WARNING! These instructions are for your safety. Read them This symbol means that important carefully. safety instructions need to be IMPORTANT: THIS CUTTING MACHINE IS emphasized. It concerns your safety. CAPABLE OF AMPUTATING HANDS AND FEET AND THROWING OBJECTS. FAILURE TO OBSERVE THE FOLLOWING SAFETY INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR DEATH.
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SAFETY • Watch for traffic when operating near or crossing roadways. • Use extra care when loading or unloading the machine into a trailer or truck. • Always wear eye protection when operating machine. • Wear proper Personal Protective Equipment (PPE) while operating this machine, including (at a minimum) sturdy footwear, eye protection, and hearing protection.
SAFETY Personal Safety Equipment WARNING! When using the machine, approved personal protective equipment (shown in illustrations) shall be used. Personal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen. Ask your retailer for help in choosing the right equipment.
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SAFETY • Do not use on steep slopes. • Do not try to stabilize the machine by putting a foot on the ground. • Do not mow near drop-offs, ditches, or embankments. The machine could suddenly roll over if a wheel is over the edge or if the edge caves in.
SAFETY Safe Handling of Gasoline WARNING! The engine and the exhaust system become very hot during operation. There is risk for burns if touched. Allow engine and exhaust system to cool before refueling. To avoid personal injury or property damage, use extreme care in handling gasoline.
SAFETY General Maintenance • Never operate machine in a closed area. • Keep all nuts and bolts tight to be sure the equipment is in safe working condition. • Never tamper with safety devices. Check their proper operation regularly. • Keep machine free of grass, leaves, or other debris buildup.
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SAFETY Sparking can occur when working with the battery and the heavy cables of the starter circuit. This can cause battery explosion, fire or eye injury. Sparking in this circuit can not occur after the chassis cable (normally negative, black) is removed from the battery. WARNING! Avoid electrical sparking and its consequences by the following...
Escaping hydraulic oil under pressure A spark arrestor for the muffler is available through can have sufficient force to penetrate your authorized Husqvarna dealer. the skin, causing serious injury. If injured by escaping fluid, see a doctor at once. Serious infection...
CONTROLS This operator’s manual describes the Husqvarna Zero hydraulic pumps. Using the left and right steering Turn Rider. The rider is fitted with either a Briggs & controls, the flow is regulated and thereby the Stratton four-stroke overhead valve engine.
CONTROLS Motion Control Levers The machine’s speed and direction are continuously variable using the two steering controls. The steering controls can be moved forward or backward about a neutral position. Furthermore, there is a neutral position, which is locked if the steering controls are moved outward.
CONTROLS Hour Meter The hour meter displays the total operating time. It will flash CHG OIL (Change Oil) at 50 hour intervals. The flash duration is one hour before and one hour after the interval. The CHG OIL icon will come on and shut off automatically.
CONTROLS Release the key to the RUN position when the engine has started. 8058-046 Ignition switch - RUN position For using “accessory”, turn the key counter clockwise. 8058-047 Ignition switch - accessory Parking Brake The parking brake is found on the left of the machine. Pull the lever backward to activate the brake and push forward to release it.
CONTROLS Tracking Knob If the mower is not tracking straight, check the air pressure in both rear tires. Recommended air pressure is 10 psi. (.7 bar) for the front tires and 15 psi (1 bar) for the rear tires. Tracking must be checked on a flat and level concrete or blacktop surface.
CONTROLS Cutting Height Adjuster The desired cutting height is set with the height pin. The cutting height pedal releases the deck lift and places the deck at the selected height. For transport, push the lift pedal fully forward until the deck lift latches in the transport (highest) position.
CONTROLS Refueling Read the safety instructions before refueling. The capacity for the tank is 5 gallons (19 liters). Regularly check the gas cap gasket for damage and keep the cap properly tightened. The engine will run on a minimum of 87-octane unleaded gasoline (no oil mix).
OPERATION Read the Safety section and the following pages if Pull back slightly on control levers, allowing the mower you are unfamiliar with the machine. to move backwards. Push the control levers forward to the neutral position and mower should stop moving. Training To turn to the right Due to unique steering capabilities, zero turn mowers...
OPERATION Before Starting 1. Read the sections on Safety and Controls before starting the machine. 2. Perform the daily maintenance before starting (see Maintenance Schedule in the Maintenance section). 3. Check that there is sufficient fuel in the fuel tank. 4.
OPERATION Starting the Engine 1. Sit on the seat. 2. Raise the mower deck to the transport position by locking the lift pedal fully forward. 8058-048 Set mower deck to the transport position 3. Activate the parking brake. 8058-044 Activate parking brake before starting 4.
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OPERATION 5. Move the steering controls outward to the locked (outer) neutral position. IMPORTANT INFORMATION The Briggs & Stratton engine on this unit is equipped with Electronic Fuel Management 8061-040 (EFM). The engine choke is automatically Place controls in neutral position regulated during starting and warm up.
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OPERATION 8. Press in and turn the ignition key to the start position. IMPORTANT INFORMATION Do not run the starter for more than 5 seconds each time. If the engine does not start, wait about 10 seconds before retrying. 8050-780 Turn to the start position 9.
OPERATION Weak Battery WARNING! Lead-acid batteries generate explosive gases. Keep sparks, flame and smoking materials away from batteries. Always wear eye protection when around batteries. IMPORTANT INFORMATION The mower is equipped with a 12-volt negative grounded system. The other vehicle must also be a 12-volt negative grounded system.
OPERATION Running 1. Release the parking brake by moving the lever downward. NOTE: The mower is equipped with an operator presence system. When the engine is running, any attempt by the operator to leave the seat without first setting the parking brake will shut off the engine.
OPERATION Operating on Hills Read the Safety Instructions Driving on Slopes in the Safety Instructions. WARNING! IMPORTANT INFORMATION Do not drive up or down hills with When control levers are in the reverse position slopes greater than 10 degrees. Do they return to neutral when released.
OPERATION Stopping the Engine 1. Move the throttle to the minimum position (tortoise symbol). 2. Move the steering controls outward. 3. Disengage the mower deck by depressing the blade switch. 8058-046 Disengage the mower deck and move throttle to minimum 4.
OPERATION Mowing Tips WARNING! • Observe and flag rocks and other fixed objects to Clear the lawn of stones and other avoid collisions. objects that can be thrown out by the • Begin with a high cutting height and reduce it blades.
OPERATION Moving Machine By Hand Bypass Linkages When pushing or pulling the mower, engage the IZT (Integrated Zeroturn Transaxle) bypass linkages with the hydro release levers. The levers are located on each side of the rear of the unit below the rear engine plate.
MAINTENANCE Maintenance Schedule The following is a list of maintenance procedures that an authorized service workshop is recommended to must be performed on the machine. For those points maintain your machine in the best possible condition not described in this manual, visit an authorized and to ensure safe operation.
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MAINTENANCE Daily At least Maintenance interval once in hours each MAINTENANCE Before After year ■ Check/adjust throttle cable ● ● Check the condition of belts, belt pulleys ■ ■ Change the engine oil ■ ■ Replace the engine oil filter ■...
MAINTENANCE Battery STANDARD STATE APPROXIMATE BATTERY CHARGING TIME* TO FULL CHARGE AT 80 F / 27 Your mower is equipped with a maintenance free BATTERY Maximum Rate at: battery and does not need servicing. However, CHARGE 50 Amps 30 Amps 20 Amps 10 Amps periodic charging of the battery with an automotive...
MAINTENANCE Safety System This machine is equipped with a safety system that prevents starting or driving under the following conditions. The engine can only be started when: 1. The mower deck is disengaged. 2. The steering controls are in the outer, locked neutral position.
MAINTENANCE Deck Belt Deck Belt Removal Park on a level surface. Apply park brake. Lower the deck into the lowest cutting position. 1. Remove foot plate and belt shields. 2. Using a ratchet or breaker bar with a " socket on the spring idler bolt, relieve the tension on the belt.
MAINTENANCE Pump Belt The belts are not adjustable. Replace belts if they begin to slip from wear. Replacing Pump Belt Park the mower on a level surface. Engage the parking brake. Belt Removal From the top side of the deck: 1.
5. Torque blade bolt to 45-55 ft-lbs (60-75 Nm). 3. Cutter housing Blade attachment IMPORTANT INFORMATION Special blade bolt is heat treated. Replace with a Husqvarna bolt if required. Do not use lower grade hardware than specified. WARNING! Before performing any service or adjustment checklist: 1.
MAINTENANCE Adjusting the Mower Deck Check the tire pressure before adjustment of the mower deck. See Tire Pressures in Maintenance section. Faulty mower deck adjustments will cause an uneven mowing result. Leveling deck Adjust the deck while the mower is on a level surface.
MAINTENANCE Anti-scalp rollers Anti-scalp rollers are properly adjusted when they are just slightly off of the ground when the deck is at the desired cutting height in the operating position. Anti- scalp rollers then keep the deck in the proper position to help prevent scalping in most terrain conditions.
MAINTENANCE Caster Wheels Check every 200 hours. Make sure that wheels rotate freely. IMPORTANT INFORMATION DO NOT add any type of tire liner or foam fill material to the tires. Excessive loads created by foam tires will cause premature failures. Use only O.E.M.
LUBRICATION Lubrication Schedule 8058-056 12/12 Every year Lubricate with grease gun Level check 1/52 Every Week Oil change Filter change 1/365 Every day Change hydraulic drive filters. p See Engine Manufacturer's manual General Remove the ignition key to prevent unintentional Wipe away excess grease after lubrication.
LUBRICATION Wheel and Deck Zerks Use only good quality bearing grease. Grease from well-known brand names (petrochemical companies, etc.) usually maintains a good quality. Front Wheel Mount Lubricate with a grease gun until the grease is forced out. Front Wheel Bearings Lubricate 3-4 strokes with a grease gun on each set of wheel bearings.
LUBRICATION Transaxle (Transmission) Fluid Change 10. Fill with 20W50 motor oil until oil just appears This transaxle is designed with an external filter for at the bottom of each transaxles’ top port ease of maintenance. To ensure constant fluid quality (approximately 2 quarts per transaxle, 4 quarts levels and longer life, an oil filter change interval of total).
LUBRICATION Purging Procedures Due to the effects air has on efficiency in hydrostatic drive applications, it is critical to purge the system. These purge procedures should be implemented any time a hydrostatic system has been opened to facilitate maintenance or any additional oil has been added to the system.
TROUBLESHOOTING GUIDE Problem Cause Engine will not start • Blade switch is engaged • Steering controls are not locked in the neutral position • Parking brake is not activated • Battery is dead • Contamination in the carburetor or fuel line •...
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TROUBLESHOOTING GUIDE Problem Cause Machine vibrates • Blades are loose • Blades are incorrectly balanced • Engine is loose Engine overheats • Clogged air intake or cooling fins • Engine overloaded • Poor ventilation around engine • Defective engine speed regulator •...
It is very flammable and can cause purchase year, model, type, and serial number. serious personal injury and property Always use genuine Husqvarna spare parts. damage. Drain the fuel outdoors, into An annual check-up at an authorized service an approved container. Store the fuel...
TECHNICAL DATA MZ28ZT / 966613201 Engine Manufacturer Briggs & Stratton Type Endurance Power 15.65 kW @ 2950 RPM Lubrication Pressure w/ Oil Filter Fuel Min 87 octane unleaded (Max ethyl alcohol 10%, Max MTBE 15%) Fuel tanks capacity 5 gallons / 9 liters Cooling Air cooled Alternator...
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TECHNICAL DATA MZ28ZT / 966613201 Frame Cutting Width 132 cm / 52" Cutting Height 3.8 - 11.4 cm / 1½ - 4½" Uncut Circle Number of Blades Blade Length 46 cm / 18" Nose Roller Sprung Seat Suspension Hinged Arm Rests Hour Meter Blade Engagement 200 ft-lb Warner Clutch...
TECHNICAL DATA Torque Specifications Hex Head Cap Screws The torque values shown should be used as a general guideline when specific torque values are not given. U.S. Standard Hardware Grade SAE Grade 5 SAE Grade 8 Flangelock Screw w/Flangelock Nut Size ft./lbs ft./lbs...
See the Declaration of Conformity Certificate for additional information. Husqvarna AB, Orangeburg, SC, USA declares under sole responsibility that the machine types stated on page 1 of this manual, from 2010's serial numbers and onwards (the year is clearly stated in plain text...
SERVICE JOURNAL Action Date, mtr reading, stamp, sign Delivery Service Charge the battery Adjust the tire pressure of all wheels to 15 PSI (1 bar) Mount the steering controls in the normal position Connect the contact box to the cable for the seat’s safety switch Check that the right amount of oil is in the engine Adjust the position of the steering controls Fill with fuel and open the fuel shut off valve...
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SERVICE JOURNAL Action Date, mtr reading, stamp, sign After 10 hours Change the engine oil Check hydraulic oil level Inspect hydraulic hoses Inspect hydraulic belt Inspect hydraulic filter Check neutral position Check safety system Check seat belt Check fuel system for leaks Inspect safety guards and shields Check brake adjustment...
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SERVICE JOURNAL Action Date, mtr reading, stamp, sign Daily Service Clean debris from mower Check engine oil level Check the tire pressures Check underside of deck Inspect deck pulleys Check/clean the engine’s cooling air intake Check safety system Check seat belt Check fuel system for leaks Inspect safety guards and shields Check brake adjustment...
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SERVICE JOURNAL Action Date, mtr reading, stamp, sign 25-Hour Service Check the fuel pump’s air filter Sharpen/Replace mower blades if required Check the tire pressures Check battery with cables Lubricate according to lubrication chart Check/clean the engine’s cooling air intake Clean the air cleaner’s pre-filter (foam)
SERVICE JOURNAL Action Date, mtr reading, stamp, sign 100-Hour Service Grease fittings (caster pivots and caster wheels) Inspect dampeners Inspect frame Inspect throttle cable Inspect hardware Check the tire pressures Change the engine oil and filter Change air filter Inspect spark plug Inspect fuel filter Check engine RPM Clean underside of deck...
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SERVICE JOURNAL Action Date, mtr reading, stamp, sign 300-Hour Service Grease fittings (caster pivots and caster wheels) Inspect dampeners Inspect frame Inspect throttle cable Inspect hardware Check the tire pressures Change the engine oil and filter Change air filter Inspect spark plug Inspect fuel filter Check engine RPM Clean underside of deck...
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SERVICE JOURNAL Action Date, mtr reading, stamp, sign At least once each year Clean the engine’s cooling air intake. Replace the air cleaner’s pre-filter (foam). Replace the air filter’s paper cartridge. Change the engine oil. Replace the engine oil filter Check/adjust the cutting height Check/adjust the parking brake Clean/Change the spark plugs...
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Original instructions 115 39 51-27 Rev D 2011-09-15...