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Husqvarna MZ6128/966613103 - page 1
Operator Manual Please read the operator’ s manual car efully and mak e sur e you understand the instructions befor e using the machine. Gasoline containing up to 10% ethanol (E10) is acceptable for use in this machine. The use of an y gasoline exceeding 10% ethanol (E10) will v oid the product war ranty . MZ6128 / 966613103 ...
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Husqvarna MZ6128/966613103 - page 2
©2012 All rights reserved. Orangeburg,SC. Printed in U.S.A. T o 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 mo ...
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Husqvarna MZ6128/966613103 - page 3
CONTENTS INTRODUCTION ...................................................... 5 Driving and T ransport on Public Roads ............. 5 T owing ................................................................ 5 Operating ........................................................... 5 Good Service ..................................................... 6 ...
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W ARNING! 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 in ...
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Husqvarna MZ6128/966613103 - page 5
5 INTRODUCTION Congratulations Thank you for purchasing a Husqvarna ride-on mower . This machine is built for superior efficiency to rapidly mow primarily large areas. A contr ol panel that is easily accessible to the operator and a hydrostatic transmission regulated by steering contr ols both contribute to the machine’s perfor mance. This manua ...
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Husqvarna MZ6128/966613103 - page 6
6 INTRODUCTION Good Service Husqvarna's products are sold only in specialized retail stor es with complete service. This ensures that you as a customer receive only the best support and service. Before the pr oduct is delivered, the machine has, for example, been inspected and adjusted by your retailer . See the certificate in the Service Jou ...
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Husqvarna MZ6128/966613103 - page 7
R N SYMBOLS AND DECALS 7 These symbols are found on the machine and in the operator’s manual. Study them carefully so that you know what they mean. Used in this publication to notify the reader of a risk of personal injury or death , particularly if the reader should neglect to follow instructions given in the manual. IMPORT ANT INFORMA TION Xxxx ...
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Husqvarna MZ6128/966613103 - page 8
SYMBOLS AND DECALS 8 Read Operator’s Manual Shut off engine and remove key befor e perfor ming any maintenance or repair work Keep a safe distance from the machine Use on slopes no greater than 10° No passengers Whole body exposure to thrown objects Severing of fingers and toes Do not open or remove safety shields while engine is running Carefu ...
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Husqvarna MZ6128/966613103 - page 9
SAFETY 9 Safety Instructions These instructions are for your safety . Read them carefully . General Operation • Read, understand, and follow all instructions on the machine and in the manual before starting. • It is recommended that someone be awar e that you are mowing and can pr ovide help in case of injury or accident. • Do not put hands o ...
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Husqvarna MZ6128/966613103 - page 10
SAFETY 10 8011-520 Ne ver tak e passengers W ARNING! Engine exhaust and certain vehicle components contain or emit chemicals considered to cause cancer , birth defects, or other reproductive system damage. The engine exhaust contains carbon monoxide, which is an odorless, colorless, poisonous gas. Do not use the machine in enclosed spaces. • Dise ...
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Husqvarna MZ6128/966613103 - page 11
SAFETY 11 8011-670 P ersonal protective equipment 6003-004 Mow up and do wn, not side to side W ARNING! 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 ...
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Husqvarna MZ6128/966613103 - page 12
SAFETY 12 8011-517 Ne ver allo w children to operate the machine 8011-518 K eep children awa y from work area • Do not try to stabilize the machine by putting a foot on the ground. • Do not mow near drop-of fs, ditches, or embankments. The machine could suddenly roll over if a wheel is over the edge or if the edge caves in. W ARNING! CHILDREN C ...
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Husqvarna MZ6128/966613103 - page 13
SAFETY 13 Safe Handling of Gasoline 8011-516 Ne ver fill the fuel tank indoors W ARNING! The engine must not be started when the driver’s floor plate or any protective plate for the mower deck’s drive belt is removed. W ARNING! The engine and the exhaust system become very hot during operation. There is risk for burns if touched. Allow engine ...
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Husqvarna MZ6128/966613103 - page 14
SAFETY 14 8011-515 Ne ver driv e the machine in an enclosed space 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 r egularly . • Keep machine free of grass, leaves, or other de ...
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Husqvarna MZ6128/966613103 - page 15
SAFETY 15 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 . 6003-009 Do not smoke when perf or ming maintenance on the battery . T ...
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Husqvarna MZ6128/966613103 - page 16
SAFETY 16 IMPORT ANT INFORMA TION The parking brake is not sufficient to lock the machine in place during transport. Ensure that the machine is well fastened to the transport vehicle. Always reverse the machine onto the transport vehicle to avoid tipping it over . W ARNING! Escaping hydraulic oil under pressure can have sufficient force to penetr ...
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Husqvarna MZ6128/966613103 - page 17
CONTROLS 17 This operator’s manual describes the Husqvarna Zero T urn Rider . The rider is fitted with a Briggs & Stratton four -stroke overhead valve engine. T ransmission from the engine is made via belt-driven hydraulic pumps. Using the left and right steering controls, the flow is r egulated and thereby the direction and speed. Control ...
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Husqvarna MZ6128/966613103 - page 18
CONTROLS 18 Motion Control Levers The machine’s speed and direction ar e continuously variable using the two steering controls. The steering controls can be moved forwar d or backward about a neutral position. Further mor e, there is a neutral position, which is locked if the steering controls ar e moved outward. When both controls ar e in the ne ...
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Husqvarna MZ6128/966613103 - page 19
CONTROLS 19 Hour Meter The hour meter displays the total operating time with the blade activated. The display on the hour meter will turn on the oil can icon after every fifty hours of use and will stay on for two hours or until the meter is manually reset. T o manually reset the timer , turn the ignition key to the run position and then engage an ...
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Husqvarna MZ6128/966613103 - page 20
CONTROLS 20 Blade Switch T o engage the mower deck, pull the blade switch knob out. The mower blades are disengaged when the knob is pressed down fully . Ignition Switch The ignition switch is placed on the control panel and is used to start and stop the engine. T urn the key clockwise to star t the engine. 8058-214 Blade s witch 8058-160 Ignition ...
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Husqvarna MZ6128/966613103 - page 21
CONTROLS 21 8058-161 Ignition s witch - R UN position Release the key to the RUN position when the engine has started. On models equipped with headlights, turn the key clockwise to ACCESSOR Y for headlight use. Fuses Fuses are located on the left hand side of the machine. They are accessed by tilting the seat forward. Fuses ar e flat pin fuses typ ...
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Husqvarna MZ6128/966613103 - page 22
1 2 CONTROLS 22 Cutting Height Adjuster The desired cutting height is set with the height pin. The cutting height pedal releases the deck lift to place the deck and the selected height. For transport, push the lift pedal fully forward until the deck lift latches in the transport (highest) position. 8058-223 1. Release pedal 2. Height pin Cut height ...
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Husqvarna MZ6128/966613103 - page 23
CONTROLS 23 IMPORT ANT INFORMA TION Experience indicates that alcohol blended fuels (called gasohol, ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. T o avoid engine problems, the fuel system should be emptied before stora ...
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Husqvarna MZ6128/966613103 - page 24
OPERA TION 24 Read the Safety Instructions section and the following pages if you are unfamiliar with the machine. T raining Due to unique steering capabilities, zero turn mowers are far mor e maneuverable than typical riding mowers. This section should be reviewed in its entir ety prior to attempting to move the mower under its own power . When ? ...
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Husqvarna MZ6128/966613103 - page 25
OPERA TION 25 8058-223 Cutting height selection Before Starting 1. Read the sections on Saf ety and Controls before starting the machine. 2. Perfor m the daily maintenance befor e starting (see Maintenance Schedule in the Maintenance section). 3. Check that there is sufficient fuel in the fuel tank. 4. Adjust the seat to the desired position. 5. S ...
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Husqvarna MZ6128/966613103 - page 26
OPERA TION 26 Starting the Engine 1. Sit on the seat. 2. Raise the mower deck to the transport position by locking the lift pedal fully forward. 3. Activate the parking brake. 4. Disengage the mower blades by depressing the blade switch. 8058-145 Disengage the mower b lades 8058-210 Activate parking brak e before star ting 8058-223 Set mower dec k ...
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Husqvarna MZ6128/966613103 - page 27
OPERA TION 27 6. Move the throttle to the middle position. If the engine is cold, the choke control should be pulled up. 5. Move the steering controls outwar d to the locked (outer) neutral position. 7. Open the fuel tank valve. 8058-208 Place controls in neutral position 8058-145 Set the throttle and choke 8065-013 Fuel valv e in the OPEN position ...
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Husqvarna MZ6128/966613103 - page 28
OPERA TION 28 8. Press in and turn the ignition key to the start position. 8058-216 Set the throttle 8050-780 T urn to the star t position 8050-781 Return to r un position 9. When the engine starts, immediately release the ignition key back to the run position. 10. Slowly push in the choke control knob, if it was used to start a cold engine. IMPORT ...
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Husqvarna MZ6128/966613103 - page 29
OPERA TION 29 W ARNING! Lead-acid batteries generate explosive gases. Keep sparks, flame and smoking materials away from batteries. Always wear eye protection when around batteries. Weak Battery If the battery is too weak to star t the engine, it should be recharged. (See Battery in the Maintenance section.) 8011-642 Jumper cab le connection Jumpe ...
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Husqvarna MZ6128/966613103 - page 30
OPERA TION 30 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. 2. Move the steering controls inwar ds, out of the neutral positio ...
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Husqvarna MZ6128/966613103 - page 31
OPERA TION 31 Operating on Hills Read the Safety Instructions Driving on Slopes in the Saf ety Instructions . IMPORT ANT INFORMA TION Control levers return to neutral when released. This may cause the mower to suddenly stop. W ARNING! Do not drive up or down hills with slopes greater than 10 degrees. Do not drive across slopes. 8058-182 Release the ...
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Husqvarna MZ6128/966613103 - page 32
OPERA TION 32 Stopping the Engine 1. Move the throttle to the minimum position (tortoise symbol). 2. Move the steering controls outwar d. 3. Disengage the mower deck by depressing the blade switch. 4. Raise the mower deck by pressing the foot pedal forward to the transport position. 5. When the machine is standing still, activate the parking brake ...
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Husqvarna MZ6128/966613103 - page 33
OPERA TION 33 8011-603b Mowing pattern Mowing Tips • Observe and flag rocks and other fixed objects to avoid collisions. • Begin with a high cutting height and reduce it until the desired mowing r esult is attained. The average lawn should be cut to 2½" (64 mm) during the cool season and over 3" (76 mm) during the hot months. For h ...
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Husqvarna MZ6128/966613103 - page 34
1 2 OPERA TION 34 W ARNING! No adjustments or maintenance should be carried out unless: • the engine stopped • the ignition key removed • the parking brake activated Moving Machine By Hand 8058-059 1. IZT locked into the bypass position 2. Linkage lever , engaged Right side, IZT linkage When pushing or pulling the mower , engage the IZT (Inte ...
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Husqvarna MZ6128/966613103 - page 35
MAINTENANCE 35 1) First change after 8-10 hours. When operating with a heavy load or at high ambient temperatures, r eplace every 50 hours. 2) In dusty conditions, cleaning and replacement ar e requir ed more often. 3) Perfor med by authorized service workshop. ● = Described in this manual ♦ = Not described in this manual ■ = Refer to the eng ...
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Husqvarna MZ6128/966613103 - page 36
MAINTENANCE 36 W ARNING! Before performing any service or adjustment checklist: • Engage the parking brake. • Place the Blade-switch in the disengaged position. • T urn the ignition switch to OFF position and remove the key . • Make sure the blades and all moving parts have completely stopped. • Disconnect the spark plug wire from all spa ...
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Husqvarna MZ6128/966613103 - page 37
1 2 2 MAINTENANCE 37 Battery Y our mower is equipped with a maintenance free battery and does not need servicing. However , periodic charging of the battery with an automotive type battery charger will extend its life. • Keep battery and ter minals clean. • Keep battery bolts tight. • See chart for charging times. IMPORT ANT INFORMA TION Do n ...
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Husqvarna MZ6128/966613103 - page 38
MAINTENANCE 38 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: • The mower deck is disengaged. • The steering controls ar e in the outer , locked neutral position. • The parking brake is on. Make daily inspections to ensure that ...
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Husqvarna MZ6128/966613103 - page 39
MAINTENANCE 39 8058-063 Slack ening the belt tensioner 8050-843 Belt routing, deck belt 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 9 / 16 " socket on the spring idler bolt, relieve the ten ...
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Husqvarna MZ6128/966613103 - page 40
1 2 3 MAINTENANCE 40 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. Remove the deck belt (see Deck Belt Remo val in this section of the manual). 2. Tilt seat forward to access fan c ...
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Husqvarna MZ6128/966613103 - page 41
2 3 1 MAINTENANCE 41 IMPORT ANT INFORMA TION The sharpening of blades should be carried out by an authorized service workshop. Cutting Blades T o attain the best mowing ef fect, it is impor tant that blades are well sharpened and not damaged. Replace blades that have been bent or cracked when hitting obstacles. Let the service workshop decide wheth ...
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Husqvarna MZ6128/966613103 - page 42
3 2 1 4 MAINTENANCE 42 Adjusting the Mower Deck Check the tire pr essure 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. Make sure the tires ar e inflated to the correct pressur e. S ...
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Husqvarna MZ6128/966613103 - page 43
MAINTENANCE 43 Anti-scalp rollers Anti-scalp rollers ar e properly adjusted when they are just slightly off of the gr ound when the deck is at the desired cutting height in the operating position. Anti- scalp rollers then keep the deck in the pr oper position to help prevent scalping in most terrain conditions. IMPORT ANT INFORMA TION Adjust anti-s ...
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Husqvarna MZ6128/966613103 - page 44
MAINTENANCE 44 8058-014 Caster wheel Use protective glasses when cleaning and washing. Caster Wheels Check every 200 hours. Check that wheels rotate freely . Removal and Installation Remove nut and caster bolt. Pull the wheel out of the fork. T o r eInstall, reverse the order . Tighten caster bolt. If wheels do not rotate fr eely , take the unit to ...
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Husqvarna MZ6128/966613103 - page 45
LUBRICA TION 45 12/12 Every year 1/52 Every Week 1/365 Every day Lubricate with grease gun Oil change Level check Filter change 8058-056 Lubrication Schedule General Remove the ignition key to prevent unintentional movements during lubrication. When lubricating with an oil can, it must be filled with engine oil. When lubricating with gr ease, unle ...
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Husqvarna MZ6128/966613103 - page 46
LUBRICA TION 46 Wheel and Deck Zerks Use only good quality bearing grease. Grease fr om well-known brand names (petrochemical companies, etc.) usually maintains a good quality . Front Wheel Mount Lubricate with a grease gun until the gr ease is forced out. Front Wheel Bearings Lubricate 3-4 strokes with a gr ease gun on each set of wheel bearings. ...
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Husqvarna MZ6128/966613103 - page 47
2 1 3 LUBRICA TION 47 Drain old oil filters of all free-flowing oil prior to disposal. Place used oil in appropriate containers and dispose of it in accordance with laws in your area. T ransaxle (T ransmission) Fluid Change This transaxle is designed with an external filter for ease of maintenance. T o ensur e constant fluid quality levels and ...
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Husqvarna MZ6128/966613103 - page 48
48 TROUBLESHOOTING GUIDE Problem Cause Engine will not start • Blade switch is engaged • Steering controls ar e not locked in the neutral position • Parking brake is not activated • Battery is dead • Contamination in the carburetor or fuel line • Fuel supply is closed • Clogged fuel filter or fuel line • Faulty ignition system Star ...
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Husqvarna MZ6128/966613103 - page 49
49 TROUBLESHOOTING GUIDE Problem Cause Machine vibrates • Blades are loose • Blades are incorr ectly balanced • Engine is loose Engine overheats • Clogged air intake or cooling fins • Engine overloaded • Poor ventilation around engine • Defective engine speed regulator • T oo little or no oil in the engine • Fouled spark plug Bat ...
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Husqvarna MZ6128/966613103 - page 50
50 ST ORAGE Winter Storage The machine should be readied for storage at the end of the mowing season or if it will not be in use for longer than 30 days. Fuel allowed to stand for long periods of time (30 days or more) can leave sticky r esidues that can plug the carburetor and disrupt engine function. Fuel stabilizers are an acceptable option as r ...
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51 WIRING DIAGRAM ...
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52 TECHNICAL DA T A Hex Head Cap Screws The torque values shown should be used as a general guideline when specific tor que values are not given. U.S. Standard Hardware Grade SAE Grade 5 SAE Grade 8 Flangelock Screw w/Flangelock Nut Size ft./lbs Nm ft./lbs Nm ft./lbs Nm Shank Size (Diameter in inches, fine or coarse thread) ¼ 9 12 13 18 5 / 16 1 ...
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Husqvarna MZ6128/966613103 - page 53
53 TECHNICAL DA T A 1) See the Engine Manuf acturer's manual f or engine specifications. 2) The power r ating of the engines indicated is the av erage net power output (at specified r pm) of a typical production engine f or the engine model measured to SAE standard J1349/ISO1585. Mass production engines ma y diff er from this value . Actual ...
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Husqvarna MZ6128/966613103 - page 54
54 CONFORMITY CERTIFICA TES USA requirements Labels are placed on the engine and/or in the engine compartment stating that the machine will fulfill the requir ements. This is also applicable to special requir ements for any of the states, (Califor nia emission rules etc.). Do not remove any of these labels. Certificates can also be supplied with ...
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Husqvarna MZ6128/966613103 - page 55
55 SER VICE JOURNAL Date, mtr reading, stamp, sign Action Delivery Service Charge the battery . Adjust the tire pr essure 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 o ...
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Husqvarna MZ6128/966613103 - page 56
56 SER VICE 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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Husqvarna MZ6128/966613103 - page 57
57 SER VICE JOURNAL Date, mtr reading, stamp, sign Action Daily Service Clean debris from mower . Check engine oil level. Check the tire pr essures. 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 ...
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Husqvarna MZ6128/966613103 - page 58
58 SER VICE JOURNAL Action Date, mtr reading, stamp, sign 25-Hour Service Check the fuel pump’s air filter . Sharpen/Replace mower blades if requir ed. Check the tire pr essures. Check battery with cables. Lubricate according to lubrication chart. Check/clean the engine’s cooling air intake. Clean the air cleaner’s foam pre-filter (foam). ...
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Husqvarna MZ6128/966613103 - page 59
59 SER VICE JOURNAL Date, mtr reading, stamp, sign Action 100-Hour Service Grease fittings (caster pivots and caster wheels) Inspect dampeners Inspect frame Inspect throttle cable Inspect hardwar e Check the tire pr essures Change the engine oil and filter Change air filter Inspect spark plug Inspect fuel filter Check engine RPM Clean underside ...
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Husqvarna MZ6128/966613103 - page 60
60 SER VICE 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 hardwar e Check the tire pr essures Change the engine oil and filter Change air filter Inspect spark plug Inspect fuel filter Check engine RPM Clean underside ...
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Husqvarna MZ6128/966613103 - page 61
61 SER VICE JOURNAL Date, mtr reading, stamp, sign Action 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 ...
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62 SER VICE JOURNAL Action Date, mtr reading, stamp, sign ...
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1 15 523327 Rev A 2012-09-15 www .husqvarna.com ...
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