Instruction/ maintenance manual of the product 920 Exmark
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LAZER Z ® S-SERIES For Serial Nos. 920,000 & Higher Lazer Z (LZS) Units Part No. 4500-728 Rev . A.
W ARNING CALIFORNIA Proposition 65 W ar ning The engine exhaust from this product contains chemicals known to the State of Califor nia to cause cancer , bir th defects, or other reproductiv e har m. Important: The engine in this product is not equipped with a spark ar rester mufer .
Introduction CONGRATULATIONS on the purc hase of your Exmark Mo w er . T his product has been carefully designed and man ufactured to gi ve you a maxim um amount of dependability and years of trouble-free operation. This manual contains operating, maintenance, adjustment, and safety instr uctions for your Exmark mow er .
Contents Introduction . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . .. . . . 3 Safety .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. .
Safety Safety Safety Alert Symbol This lawn mow er meets or ex ceeds the B71.4 specications of the American National Standards Institute in effect at the time of production. Exmark designed and tested this lawn mo wer to offer reasonably safe ser vice; howev er , failure to comply with the following instr uctions may result in personal injur y .
Safety DANGER In cer tain conditions gasoline is extremely ammable and v apors are explosiv e. A re or explosion fr om gasoline can bur n y ou, others, and cause proper ty damage. • Fill the fuel tank outdoors on lev el ground, in an open ar ea, when the engine is cold.
Safety CAUTION Fuel tank v ent is located inside the roll bar tube. Removing or modifying the roll bar could result in fuel leakage and violate emissions regulations. • Do Not remove roll bar . • Do Not weld, drill, or modify roll bar in any way .
Safety • Do Not operate the mow er under the inuence of alcohol or dr ugs . • Use extreme care when loading or unloading the machine into a trailer or truck. • Use care when approac hing blind corners , shr ubs , trees , or other objects that may obscure vision.
Safety W ARNING There is no rollov er pr otection when the roll bar is down. Wheels dropping over edges, ditches, steep banks, or w ater can cause rollovers, which may result in serious injur y , death or drowning . • Keep the roll bar in the raised and locked position and use seat belt.
Safety CAUTION If the ignition is in the “ON” position there is potential for sparks and engagement of components. Sparks could cause an explosion or moving parts could accidentally engage causing per sonal injur y . Be sure ignition s witch is in the “OFF” position before charging the batter y .
Safety Safety and Instructional Decals • Keep all safety signs legible. R emo v e all g rease , dirt and debris from safety signs and instructional labels . • R eplace all w orn, damaged, or missing safety signs . • When replacement components are installed, be sure that current safety signs are afxed to the replaced components .
Safety 107-2102 109-3148 109-7232 1. Fast 3. Neutral 2. Slow 4. Reverse 109-7330 109-7929 12.
Safety 109-8483 All Units Except EFI 1. Throttle–fast 3. Choke–on 2. Throttle–slow 4. Choke–off 109-9361 Deck Drive Belt Routing 1 16-0090 1 16-0157 1.
Safety 1 16-0752 1. Latch 2. Unlatch 1 16-1654 1 16-2643 1 16-2844 EFI Units Only 1. Throttle–fast 2. Throttle–slow 1 16-3303 1 17–2718 14.
Safety Message Display 1. Fuel 6. Hour meter 2. Empty 7. PTO 3. Half 8. Parking brake 4. Full 9. Neutral 5. Battery 10. Operator presence switch PTO Switch Symbols 1.
Specications Specications Model Numbers Serial Nos: 920,000 and Higher LZS22KA484; LZS22KA484CA; LZS23K C524; LZS24KA524CA; LZS25EKC604; LZS25KC604; LZS27K C524; LZS27K C524CA; LZS27KC604; LZS27.
Specications – Separate levers , on each side of the console , control speed and direction of trav el of the respectiv e driv e wheels . – Steering is controlled by v ar ying the position of the lev ers relati v e to eac h other . – Moving motion control levers outward (in slots) loc ks the drive system in neutral.
Specications – 48 inch Deck: (121.9 cm) – 52 inch Deck: (132.1 cm) – 60 inch Deck: (152.4 cm) – 72 inch Deck: (182.9 cm) • Discharge: Side • Blade Size: (3 ea.) – 48 inc h Dec k: 16.25 inches (41.3 cm) – 52 inc h Dec k: 18.00 inches (45.
Specications T read W idth: (Center to Center of Tires, W idthwise) 48 inch Deck 52 inch Deck Driv e Wheels 36.2 inc hes (91.9 cm) 38.5 inc hes (97.8 cm) Caster Wheels 32.8 inches (83.3 cm) 32.8 inches (83.3 cm) 60 inch Deck 72 inch Deck Driv e Wheels 41.
Specications Accessory W eight T able Worksheet: Use the table belo w to deter mine if extra w eight is required for the unit. Identify the accessories and cor rect deck size and place the cor responding values in the Accessory Score column. If the T otal Accessor y Score meets the following, add the recommended weight kit.
Operation Product Overview Figure 4 1. Rollover Protection System (ROPS) 5. Fuel cap 2. Engine Controls (right console) 6. Height of cut adjustment 3. Seat belt 7. Parking brake 4. Motion control levers Operation Note: Deter mine the left and right sides of the machine from the nor mal operating position.
Operation Choke Control (All Units Except Kohler EFI) Located on right console (black lev er) (see Figure 6). The c hoke is used to aid in star ting a cold engine . Moving the c hoke lever forward will put the c hoke in the “ON” position and moving the choke lev er to the rear , to the detent, will put the c hoke in the “OFF” position.
Operation The hour meter records the number of hours that the engine has r un. Figure 9 1. LCD Indicators 2. Low fuel indicator light 3. Fuel level bar display 4. Low voltage indicator light 5. Hour/V oltage display The hour meter is recording when the decimal point is ashing in Hour/V oltage display .
Operation Note: The handle m ust be horizontal and ag ainst the stop for operation. Do Not to w machine. PTO Engagement Switch Located on right console (see Figure 6). Switch must be pulled out (up) to engag e the blades . Switch is pushed in to diseng age the blades .
Operation R efer to the Maintenance section and perfor m all the necessar y inspection and maintenance ste ps . Operating Instructions Raise the Rollover Protection System (ROPS) Important: The roll bar is an integral and effective safety device. Keep the r oll bar in the raised and locked position when operating the mower .
Operation attempts. F ailure to follow these guidelines can bur n out the starter motor . 7. If the choke is in the “ON” position, gradually return chok e to the “OFF” position as the engine war ms up . Engaging the PT O DANGER The r otating blades under the mow er deck are dangerous.
Operation Figure 14 1. Neutral lock position (handles out) 4. Forward 2. Neutral operate position (handles in) 5. Neutral (operate) 3. Front of Unit 6. Reverse Driving F orw ard 1. R elease the parking brake. 2. Mov e the motion control levers inward to the center to the neutral position.
Operation Figure 16 1. Deck foot pedal 3. Height of cut decal 2. Height adjustment pin 4. T ransport lock control 5. Insert the height adjustment pin into the hole cor responding to the desired cutting height. See the decal on the side of the deck lift plate for cut heights .
Operation Figure 18 1. Spring disc washer (cone towards nut ) 3. 3/8 nyloc-torque to 30-35 ft-lb (41-47 N-m) 2. Front right anti-scalp bracket shown 4. 3/8-16 whizlock nut torque to 30-35 ft-lb (41-47 N-m) T ransporting T ransporting a Unit Use a heavy-duty trailer or tr uc k to transport the machine .
Maintenance Maintenance Note: Deter mine the left and right sides of the mac hine from the nor mal operating position. W ARNING While maintenance or adjustments are being made, someone could star t the engine. Accidental starting of the engine could seriousl y injure you or other bystanders.
Maintenance Maintenance Ser vice Inter v al Maintenance Procedur e Every 500 hours • R eplace the secondar y air cleaner element (May need more often under severe conditions. See the Engine Owner’ s Manual for additional information.) • Change the hydraulic lter and uid.
Maintenance V oltage Reading Percent Charge Maximum Charger Settings Charging Inter v al 12.0–12.2 25–50% 14.4 volts/4 amps 2 Hours 11.7–12.0 0–25% 14.4 volts/4 amps 3 Hours 11.7 or less 0% 14.4 volts/2 amps 6 Hours or More Important: F or Kohler EFI units: Unplug the har ness from the ECU befor e perfor ming an y welding on the equipment.
Maintenance 4. Connect the other end of the positiv e cable to the positiv e terminal of the booster battery . 5. Connect the black negativ e (–) cable to the other ter minal (negativ e) of the booster battery . 6. MAKE THE FINAL CONNECTION ON THE ENGINE BLOCK OF THE STALLED VEHICLE (NOT TO THE NEGA TIVE POST) A W A Y FROM THE B A TTER Y .
Maintenance W ARNING Incor rect installation of the blade or components used to retain the blade can be dangerous. F ailure to use all original components and assembled as sho wn could allow a blade or blade component to be thrown out from under the deck r esulting in serious personal injur y or death.
Maintenance Visually inspect seat belt for wear , cuts , and proper operation of retractor and buckle . R eplace before operating if damaged. Check for Loose Hardware Service Interval: Before each use or daily 1. Stop engine, wait for all moving parts to stop , and remov e k ey .
Maintenance Figure 24 1. Full 2. Add Note: T he oil lev el on the dipstick will be incor rect if the oil is chec ked when the unit is hot. 7. If the dipstick oil lev el is at the “add” mark add Exmark Premium Hydro Oil. 8. R eplace hy draulic reser v oir cap and tighten until snug .
Maintenance Figure 25 1. Seal guard 2. Spacer nut with wrench ats 2. R emov e caster wheel from caster forks . 3. R emov e seal guards from the wheel hub . 4. R emov e one of the spacer nuts from the axle assembly in the caster wheel. Note that thread locking adhesiv e has been applied to loc k the spacer nuts to the axle .
Maintenance W ARNING Fuel system components are under high pressure. The use of impr oper components can result in system failure, gasoline leakage and possible explosion.
Maintenance Check Spark Arrester (if equipped) Service Interval: Every 50 hours W ARNING Hot exhaust system components may ignite gasoline v apors ev en after the engine is stopped. Hot particles exhausted during engine operation may ignite ammable materials.
Maintenance Adjustments Note: Disengag e PTO , shut off engine , w ait for all moving parts to stop , engage parking brake, and remov e key before ser vicing, cleaning, or making any adjustments to the unit. CAUTION Raising the mower deck for ser vice or maintenance relying solely on mechanical or h ydraulic jacks could be danger ous.
Maintenance Figure 28 1. Adjuster link 3. Adjuster 2. Jam nut 11. The back tip of the blade should measure 3 1/4 inches (8.3 cm). Fine tune rear adjusters as required. 12. R e-measure until all four sides are the correct height. Tighten all the jam nuts on the dec k lift ar m assemblies .
Maintenance Adjusting the Parking Brake Service Interval: After the rst 100 hours Every 500 hours thereafter Check to make sure brake is adjusted properly . This procedure m ust be followed after the rst 100 hours or when a brak e component has been remo v ed or replaced.
Maintenance 14. Once step 11 is ac hiev ed, hold the threaded rod end with a tool and tighten the lock nut against the standard nut. Do Not allow the cable to tur n when the nuts are tightened.
Maintenance Figure 32 1. Armature 5. Brake spacer 2. Field shell 6. Re-gap shim 3. Rotor 7. Brake pole 4. Brake mounting bolt Remo ving the Shim: 1. Stop engine, w ait for all moving par ts to stop , and remov e key . Eng age parking brak e . Allo w the machine to cool completely before starting these instr uctions .
Maintenance Figure 35 1. Feeler gauge • If the g ap is less than 0.010 inc h, then reinstall the shim and reference the T roubleshooting section. • If the g ap is sufcient, proceed to the safety check in step F. F . P erfor m the following safety check: a.
Maintenance Figure 36 1. Double nuts 8. Shut off unit. R emov e jumper wire from wire harness and plug connector into seat switch. 9. R emov e the jack stands . 10. Raise the dec k and re-install the height of cut pin. 11. Chec k that the mac hine does not creep in neutral with the park brakes diseng aged.
Maintenance Figure 39 1. Bolts 4. Nuts 2. Control lever 5. Slotted holes 3. Control arm shaft 2. Mov e the control lever to the next set of holes . Secure the lev er with the two bolts . 3. R epeat the adjustment for the opposite control lever . Adjusting the Tilt The motion control levers can be tilted fore or aft for maximum operator comfort.
Maintenance Cleaning Clean Engine and Exhaust System Area Service Interval: Before each use or daily (May be required more often in dry or dirty conditions.) CAUTION Excessi v e de bris around engine cooling air intake and exhaust system area can cause engine, exhaust area, and hydraulic system to o v erheat which can create a re hazard.
Maintenance recycling center or according to your state and local regulations . Battery Disposal DANGER Batter y electrolyte contains sulfuric acid, which is poisonous and can cause sev ere bur ns. Sw allowing electrolyte can be fatal or if it touches skin can cause severe bur ns.
T roubleshooting T roubleshooting Important: It is essential that all operator safety mechanisms be connected and in proper operating condition prior to mower use. When a problem occurs , do not ov erlook the simple causes . F or example: starting problems could be caused by an empty fuel tank.
T roubleshooting Problem Possible Cause Cor rectiv e Action 1. Engine load is ex cessiv e 1. R educe the g round speed. 2. Air cleaner is dir ty . 2. Clean or replace the air cleaner element. 3. Oil level in the crankcase is low . 3. Add oil to the crankcase .
T roubleshooting Problem Possible Cause Cor rectiv e Action 1. Fuse is blown. 1. Replace fuse. Check coil resistance, batter y c harge, charging system, and wiring connections and replace if necessar y . 2. Low voltage supply at the clutch. 2. Check coil resistance, battery charge, charging system, and wiring connections and replace if necessary .
Schematics Schematics Electrical Diagram — All units except Kohler EFI G008587 PTO SWITCH SEA T SWITCH IGNITION SWITCH FUSE BLOCK REGULA TOR GROUND PTO CLUTCH ST ART RELA Y LH NEUTRAL SWITCH RH NEUTRAL SWITCH BRAKE SWITCH ST ART RED HOUR METER/MODULE L T.
Schematics Electrical Diagram — Kohler EFI G012211 PTO SWITCH SEA T SWITCH IGNITION SWITCH FUSE BLOCK REGULA TOR GROUND PTO CLUTCH ST ART RELA Y LH NEUTRAL SWITCH RH NEUTRAL SWITCH BRAKE SWITCH ST ART RED HOUR METER/MODULE L T.
Schematics Electrical Logic Schematic — All units except Kohler EFI BN BN BU BK Y W T PK BN PK OR GN S R PK PK PK L TGR GY GY PK V BN V OR GN OR R PK R BK GND PK BK BN BN BK PK BK GND 15A F4 GY R I .
Schematics Electrical Logic Schematic — Kohler EFI BN BN BU BK Y W T PK BN R PK OR GN S R PK PK PK L TGR GY GY PK V BN V OR GN OR R PK T R BK GND PK BK BN BN BK PK BK GND 15A F4 GY R I B A W V BU V .
Schematics Hydraulic Diagram 57.
General Warranty Conditions and Products Co vered Exmark Mfg. Co. Inc. and its aff iliate, Exmark W arranty Company , pursuant to an agreement between them, jointly warrant on the terms and conditions.
Notes: 59.
Notes: 60.
Service Record Date: Description of W ork Done: Service Done By: 61.
62.
G01 1841 Figure 42 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 15 degrees . Use the slope indicator to determine the degree of slope of hills before operating. Do Not operate this machine on a slope greater than 15 degrees.
MID-MOUNT RIDING A CCESSORIES AND OPTIONS SEE EXMARK’S COMPLETE LINE OF A CCESSORIES AND OPTIONS W ALK-BEHIND A CCESSORIES AND OPTIONS GRASS CA TCHER MICRO-MULCH SYSTEM TURF STRIPER ST ANDON CUST OM.
An important point after buying a device Exmark 920 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Exmark 920 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Exmark 920 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Exmark 920 you will learn all the available features of the product, as well as information on its operation. The information that you get Exmark 920 will certainly help you make a decision on the purchase.
If you already are a holder of Exmark 920, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Exmark 920.
However, one of the most important roles played by the user manual is to help in solving problems with Exmark 920. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Exmark 920 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center