Husqvarna RZ5426 Owners Manual
Husqvarna RZ5426 Manual
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- Husqvarna RZ5426 | Owners Manual - Page 1
up to 10% ethanol (E10) is acceptable for use in this machine.The use of any gasoline exceeding 10% ethanol (E10) will void the product warranty. Operator Manual RZ5426 / 967003601 Please read the operator's manual carefully and make sure you understand the instructions before using the machine. - Husqvarna RZ5426 | Owners Manual - Page 2
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 - Husqvarna RZ5426 | Owners Manual - Page 3
Cutting Blades 41 Blade replacement 41 Adjusting the Mower Deck 42 Leveling deck 42 Caster Wheels 43 Cleaning 43 Hardware 43 LUBRICATION 44 Lubrication Schedule 44 Wheel and Deck Zerks 45 Front Wheel Mount 45 Front Wheel Bearings 45 Deck Spindles 45 Transmission 45 TROUBLESHOOTING 46 - Husqvarna RZ5426 | Owners Manual - Page 4
owner must understand these instructions, and must allow only trained persons who understand these instructions to operate the mower. Each person operating the mower or other reproductive harm. WARNING! Battery posts, terminals and related accessories contain lead and lead compounds, chemicals - Husqvarna RZ5426 | Owners Manual - Page 5
provided by the manufacturer. Operating instructions for the accessories are provided with delivery. All other types of uses are incorrect. The manufacturer's directions concerning operation, maintenance, and repairs must be carefully followed. Lawn mowers and all power equipment, can be potentially - Husqvarna RZ5426 | Owners Manual - Page 6
and adjusted by your retailer. See the certificate in the Service Journal in this operator's manual. When you need spare parts or support in service questions, warranty issues, etc., please consult the following professional: This Operator Manual belongs to the machine with the manufacturing number - Husqvarna RZ5426 | Owners Manual - Page 7
Used in this publication to notify the reader of a risk of material damage, particularly if the reader should neglect to follow instructions given in the manual. Used also when there is a potential for misuse or misassembly. RN Reverse Neutral Fast Slow Choke Fuel Warning! Parking Brake CE - Husqvarna RZ5426 | Owners Manual - Page 8
AND DECALS Read Operator's Manual Shut off engine and remove key before performing any maintenance or repair work Keep a safe distance sharp blades under cover Battery acid is corrosive, explosive and flammable Warning! Rotating blades, keep away from the discharge deck Do not touch parts 8 - Husqvarna RZ5426 | Owners Manual - Page 9
rotating parts or under the machine. Keep clear of the discharge opening at all times. • Only allow responsible adults, who are familiar with the instructions, to operate the machine. • Clear the area of objects such as rocks, toys, wire, etc., which could be picked up and thrown by the blades. • Be - Husqvarna RZ5426 | Owners Manual - Page 10
of grass, leaves or other debris buildup which can touch the hot exhaust or engine parts and burn. • Do not allow the mower deck to plow leaves or other debris, causing buildup to occur. • Clean any oil or fuel spillage before operating or storing the machine. • Allow machine to cool before storage - Husqvarna RZ5426 | Owners Manual - Page 11
driving. • Always wear gloves when handling the blades. • Never wear loose clothing that can get caught in moving parts Tall grass can hide obstacles. • Choose a low ground speed so that you will not have to stopping, or turning on a slope. If the tires lose traction, disengage the blades and proceed - Husqvarna RZ5426 | Owners Manual - Page 12
operating a riding lawn mower. Keep children out of the mowing area and in the watchful care of a responsible adult other than the operator. Be extra cautious when driving operator. • Be alert and turn machine off if a child enters children, even with the blades shut off. They may - Husqvarna RZ5426 | Owners Manual - Page 13
container where there is an open flame, spark, or pilot light such as on a water heater or other appliance. • Before . • If fuel is spilled on clothing, change clothing immediately. • Never overfill fuel tank. Replace gas cap and tighten securely. • Do not mower deck's drive belt is removed. 13 - Husqvarna RZ5426 | Owners Manual - Page 14
frequently and replace with manufacturer's recommended parts, when necessary. • Mower blades are sharp. Wrap the blade or wear gloves, and use extra caution when servicing them. • Check brake operation frequently. Adjust and service as required. • Maintain or replace safety and instruction labels - Husqvarna RZ5426 | Owners Manual - Page 15
. Only use approved repair parts for the machine. • The blades are sharp and can cause cuts and gashes. Wrap the blades or use protective gloves when handling them. • Check the parking brake's functionality regularly. Adjust and service as necessary. • The mulch blades should only be used - Husqvarna RZ5426 | Owners Manual - Page 16
drive system. • Load the unit onto truck or trailer by driving towed equipment. Make wide turns to avoid jack-knifing. Husqvarna dealer. 16 WARNING! Escaping hydraulic oil mower is equipped with an internal combustion engine and should not be used on or near any unimproved forested, bush covered - Husqvarna RZ5426 | Owners Manual - Page 17
manual describes the Husqvarna Zero Turn Rider. The rider is fitted with a four-stroke overhead valve engine. Transmission from the engine is made via a belt 6. Fuel tank 7. Fuses 12 13 14 8. Seat adjustment lever 9. Blade switch 10. Ignition switch 11. Throttle 12. Choke control 13. Hour - Husqvarna RZ5426 | Owners Manual - Page 18
rotation of the right wheel is reduced and the machine turns to the right. Zero turn can be achieved by moving one control backward (behind the Steering controls 8050-904 WARNING! The machine can turn very rapidly if one steering control is moved much further forward than the other. 1. Forward 2. - Husqvarna RZ5426 | Owners Manual - Page 19
the spark plugs. USE FULL THROTTLE WHEN MOWING, for best mower performance and battery charging. Throttle control Blade Switch To engage the mower deck, pull the blade switch knob out. The mower blades are disengaged when the knob is pressed down fully. Blade switch 8058-187 8058-134 8058-134 19 - Husqvarna RZ5426 | Owners Manual - Page 20
panel and is used to start and stop the engine. On models equipped with headlights, turn the key clockwise to ACCESSORY for headlight use. Ignition switch Choke Control The choke control is used for and functions: 20 Amp Primary fuse 7.5 Amp Mower deck coupling Fuses 20 8052-001 8058-134 8011-420 - Husqvarna RZ5426 | Owners Manual - Page 21
capacity is 3.5 gallons (13.25 liters). Regularly check the gas cap gasket for damage and keep the cap properly tightened. The engine will run on a minimum of 85-octane unleaded gasoline (no oil an engine while in storage. To avoid engine problems, the fuel system should be emptied before storage of - Husqvarna RZ5426 | Owners Manual - Page 22
handle tab is turned perpendicular to the fuel line. IMPORTANT INFORMATION Always raise the deck to the blade tip with the engine not running. IMPORTANT INFORMATION To obtain an even cutting height, it is important that the air pressure in all tires is 15 psi / 103 kPa / 1 bar. The mower deck - Husqvarna RZ5426 | Owners Manual - Page 23
(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. The hour meter cannot be manually reset. Hour meter Tracking Knob If the mower is not tracking straight, check the air pressure in both - Husqvarna RZ5426 | Owners Manual - Page 24
. Training Due to unique steering capabilities, zero turn mowers are far more maneuverable than typical riding mowers. This section should be reviewed in its entirety prior to attempting to move the mower under its own power. When first operating the mower or until becoming comfortable with controls - Husqvarna RZ5426 | Owners Manual - Page 25
Adjust the seat to the desired position. Lengthways adjustment 5. Set the deck cutting height by inserting the lift pin into the desired cut height. conditions must be fulfilled before the engine can be started: • The blade switch must be pressed downward into the disengaged position. • The parking - Husqvarna RZ5426 | Owners Manual - Page 26
lever backward to the locked (transport) position. Mower deck lifting lever 3. Activate the parking brake by pushing the release button in and pulling the lever fully upwards. 8058-206 4. Disengage the mower blades by pressing the blade switch downwards. Pull parking brake upwards to activate - Husqvarna RZ5426 | Owners Manual - Page 27
OPERATION 5. Move the steering controls outward to the locked (outer) neutral position. 6. Move the throttle to the middle position. Place controls in neutral position 8058-186 Set the throttle 7. If the engine is cold, the choke control should be pulled up. 8058-148 Set the choke control - Husqvarna RZ5426 | Owners Manual - Page 28
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 approximately 10 seconds before retrying. Turn to the start position 9. When the engine starts, immediately release the ignition key back to - Husqvarna RZ5426 | Owners Manual - Page 29
system. The other vehicle must also be a 12-volt negative grounded system. Do not use your mower to start other vehicles. If the battery is too weak to start the engine, it should be recharged. (See Battery in the Maintenance section.) Jumper Cables Use 1. Connect each end of the RED cable to the - Husqvarna RZ5426 | Owners Manual - Page 30
sure that no one is near mower when engaging blade switch. Make sure the work area is free from objects that could be thrown by the rotating blades. Mower deck lifting lever 4. Move throttle control to full throttle. 5. Engage the mower deck by pulling out the blade switch. 8058-187 8058-206 Set - Husqvarna RZ5426 | Owners Manual - Page 31
Read the Safety Instructions Driving on Slopes in the Safety section. WARNING! Do not drive up or down hills with slopes greater than 10 degrees. Do not drive across slopes. • The slowest speed possible should be used before starting up or down hills. • Avoid stopping or changing speed on hills - Husqvarna RZ5426 | Owners Manual - Page 32
Use compressed air to clean top surface of the deck. Avoid flooding water on top surface, engine and electrical components. • When the mulching kit is used, it is important that the mowing interval is frequent. WARNING! Clear the lawn of stones and other objects that can be thrown out by the blades - Husqvarna RZ5426 | Owners Manual - Page 33
Disengage the mower deck by pressing the blade switch down. 8058-134 Disengage the mower deck and move throttle to minimum 4. Raise the mower deck by pressing Raise the mower deck 6. Turn the ignition key to the stop position. 7. Remove key. Always remove key when leaving the mower to prevent - Husqvarna RZ5426 | Owners Manual - Page 34
mower, engage the EZT bypass linkages. The EZT bypass linkages are located on the rear of the frame, below the rear engine guard. 1. Raise the deck . 4. To reengage the EZT's to drive, reverse the above procedure. Load the machine into truck or trailer by driving slowly up the ramps. DO NOT LIFT - Husqvarna RZ5426 | Owners Manual - Page 35
the engine Clean around belts, belt pulleys Check the tire pressures Check battery connections Sharpen3)/ Replace mower blades Clean the engine's cooling air intake 2) Clean the air cleaner's pre-filter 2) (foam) Clean the air cleaner's filter cartridge 2) (paper filter) Check/adjust the parking - Husqvarna RZ5426 | Owners Manual - Page 36
of belts, belt pulleys Change the engine oil 1) Replace the engine oil filter Clean/replace the spark plugs Replace the fuel filter Replace air filter 2) (paper filter) Check the caster wheels (every 200 hours) Replace the air cleaner's pre-filter 2) (foam) Check/adjust the mower deck Check - Husqvarna RZ5426 | Owners Manual - Page 37
. Replacing battery 1. Lift seat and rotate forward. 2. Using two ½" wrenches disconnect BLACK battery cable then RED battery cable. 3. Position deck to lowest setting. 4. Front underside of frame, remove the nuts that secure the battery hold-down. 5. Carefully remove the battery from the mower - Husqvarna RZ5426 | Owners Manual - Page 38
turn the machine off and repair the safety system before using the machine again. Make sure the engine stops when the park brake is not engaged and the operator leaves the seated position. Check that the engine stops if the mower blades brake, contact the Husqvarna service workshop. IMPORTANT - Husqvarna RZ5426 | Owners Manual - Page 39
Anti-scalp Rollers IMPORTANT INFORMATION Adjust anti-scalp rollers with the mower on a flat level surface. Anti-scalp rollers are properly adjusted the rollers to support the deck. IMPORTANT INFORMATION To avoid deck damage, the anti-scalp rollers must not be adjusted to support the deck. Anti-scalp - Husqvarna RZ5426 | Owners Manual - Page 40
routed, slowly release the idler arm to tension belt. 6. Double check belt routing to make sure it matches the decal affixed to the deck, and the belt does not have any twist. Correct if needed. 7. Tighten the belt guide and replace belt shields on both mandrel housings and secure with fasteners - Husqvarna RZ5426 | Owners Manual - Page 41
out by an authorized service workshop. Blade replacement 1. Remove blade bolt by turning counterclockwise. 2. Install new or resharpened blade with stamped GRASS SIDE facing towards ground/grass (down) or THIS SIDE UP facing deck and spindle housing. 1 3. Seat the blade opening firmly onto - Husqvarna RZ5426 | Owners Manual - Page 42
insure accuracy of leveling procedure, mower deck drive belt must be installed prior to leveling deck. 1. Wear heavy gloves. Turn each blade tip to align side to side. 2. Measure from the floor surface up to the bottom of the blade tip on the discharge side of the mower deck. Record this measurement - Husqvarna RZ5426 | Owners Manual - Page 43
for service. Foam filled tires or solid tires will void the warranty. Removal models fitted with a cleanout port, attach the quick connect (from the accessory packet) to any garden hose. After mowing, snap the hose to the cleanout port and turn on water supply. Restart the mower and engage the blades - Husqvarna RZ5426 | Owners Manual - Page 44
after lubrication. It is important to avoid getting lubricant on the belts or the drive surfaces on the belt pulleys. Should this happen, attempt to clean them with spirits. If the belt continues to slip after cleaning, it must be replaced. Gasoline or other petroleum products must not be used to - Husqvarna RZ5426 | Owners Manual - Page 45
into contact with belts or belt pulley drive surfaces. Deck Spindles Lower the cutting deck completely. If a spindle. 8058-068 Deck spindle Transmission The transmission is maintenance free with no need for level checks or oil changes. If a leak occurs, replace the unit or contact your Husqvarna - Husqvarna RZ5426 | Owners Manual - Page 46
TROUBLESHOOTING Problem Engine will not start Starter does not turn the engine over Engine runs rough Engine seems weak Machine vibrates Cause • Blade switch is engaged. • Steering controls are not locked in the neutral position • Parking brake is not activated • Battery is dead • Contamination in - Husqvarna RZ5426 | Owners Manual - Page 47
or has come off • Air trapped in hydraulic system Mower deck not engaging • Drive belt for the mower deck has come loose • Contact for the electromagnetic coupling has loosened • Blade switch is faulty or has come loose from cable contact • Blown fuse Transaxle leaks oil • Damaged seals, housing - Husqvarna RZ5426 | Owners Manual - Page 48
store the battery in a cool place, but protect it from direct cold. 8. Store the machine in a clean, dry place and cover it for extra protection. Service When ordering spare parts, please specify the purchase year, model, type, and serial number. Always use genuine Husqvarna spare parts. An annual - Husqvarna RZ5426 | Owners Manual - Page 49
SCHEMATICS 49 - Husqvarna RZ5426 | Owners Manual - Page 50
Torque Specifications Engine crankshaft bolt Deck pulley bolts Lug nuts Blade bolt 50 ft/lb ( quality not recommended) Flangelock Screw w/Flangelock Nut ft./lbs Nm 24 33 40 54 Shank Size (Diameter in inches, fine or coarse thread) Grade Size M4 904 1205 Accessories Collection system 50 - Husqvarna RZ5426 | Owners Manual - Page 51
Rollers Sprung Seat Hour Meter Blade Engagement Deck Construction Productivity Dimensions Weight Base Machine Length Base Machine Height Base Machine Width Overall Width, Chute Up Overall Width, Chute Down RZ5426 / 966003601 Kohler Courage 26 hp 1,2) Pressure with oil filter Min 87 octane unleaded - Husqvarna RZ5426 | Owners Manual - Page 52
emission rules etc.). Do not remove any of these labels. Certificates can also be supplied with the machine at delivery or written in the Engine manual. Take care of them as they are valuable documents. 52 - Husqvarna RZ5426 | Owners Manual - Page 53
: The safety switch for the parking brake The safety switch for the mower deck The safety switch in the seat The safety switch in the steering controls Parking brake functionality Driving forward Driving backward Engaging the blades Check the idle speed Check the engine high idle speed Inform the - Husqvarna RZ5426 | Owners Manual - Page 54
JOURNAL Action After the First 10 Hours Change engine oil Date, mtr reading, stamp, sign q Action 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 - Husqvarna RZ5426 | Owners Manual - Page 55
sign q q q q q Action 100-Hour Service Perform the 25-hour service Perform the 50-hour service Change the engine oil filter Clean/replace the spark plugs Replace the fuel filter Check V-belts Check tighten caster wheel axle bolts (every 200 hours) Change the air filter's paper cartridge Date, mtr - Husqvarna RZ5426 | Owners Manual - Page 56
JOURNAL Action 300-Hour Service Perform the 25-hour service Perform the 50-hour service Perform the 100-hour service Check/adjust the mower deck Clean the combustion chamber and grind the valve seats Check the engine valve clearance Replace the air cleaner's pre-filter (foam) Date, mtr reading - Husqvarna RZ5426 | Owners Manual - Page 57
Action SERVICE JOURNAL Date, mtr reading, stamp, sign 57 - Husqvarna RZ5426 | Owners Manual - Page 58
Action SERVICE JOURNAL Date, mtr reading, stamp, sign 58 - Husqvarna RZ5426 | Owners Manual - Page 59
- Husqvarna RZ5426 | Owners Manual - Page 60
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Operator Manual
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
Gasoline containing up to 10% ethanol (E10) is
acceptable for use in this machine.The use of any
gasoline exceeding 10% ethanol (E10) will void
the product warranty.
RZ5426 / 967003601