Manuale d’uso / di manutenzione del prodotto 4500-450 del fabbricante Exmark
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QUEST ® For Serial Nos. 790,000 & Higher Part No. 4500-450 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 , birth defects, or other reproductiv e har m. Important: This engine is not equipped with a spark arr ester mufer .
Introduction R ead this infor mation carefully to learn how to operate and maintain y our product properly and to av oid injury and product damage. Y ou are responsible for operating the product properly and safely . Y ou may contact Exmark directly at www .
Contents Introduction .. . . .. . . .. . . .. . . .. . . .. . . .. . . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. 3 Safety .. . . .. . . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . .. . . . .. . . .. . . .. . . .. . . .
Safety Safety Safety Alert Symbol This man ual identies potential hazards and has safety messages identied by the safety alert symbol (Figure 2), which signals a hazard that ma y cause serious injury or death if you do not follo w the recommended precautions .
Safety safely enough to protect themselves and others from serious injury . • Alwa ys follow the recommendations for wheel weights or counterw eights . Slope Operation Slopes are a major factor related to loss of control and tip-ov er accidents , which can result in sev ere injur y or death.
Safety • Extinguish all cigarettes , cigars, pipes and other sources of ignition. • Use only an approv ed container . • Never remo ve the gas cap or add fuel when the engine is r unning . Allo w the engine to cool before refueling . • Never refuel the machine indoors .
Safety Safety and Instructional Decals Safety decals and instr uctions are easily visible to the operator and are located near any area of potential danger . R eplace any decal that is damaged or lost. 93-7009 1. W arning–Do Not operate the mower with the discharge deector up or removed; keep the discharge deector in place.
Safety 109-6035 Deck Drive Belt Routing 109-6036 1. Read the Operator ’ s Manual. 2. Remove the ignition key and read the instructions before servicing or performing maintenance. 3. Height of cut. 109-6210 1. Read the Operator ’ s Manual. 2. Cutting/dismemberment hazard, fan and entanglement hazard, belt–stay away from moving parts.
Safety 1 10-6691 1. Thrown objects hazard–keep bystanders a safe distance from the machine. 3. Cutting/dismemberment of hand or foot–stay away from moving parts. 2. Thrown objects hazard, mower–keep the discharge deector or collection system in place.
Safety PTO Symbols 1. PTO—Of f 2. PTO—On 109-6016 1. Read the instructions before servicing or performing maintenance. 4. Refer to the Operator ’ s manual for grease instructions. 2. T ime interval 5. Check hydraulic oil level and refer to the Operator’s Manual for further instructions.
Safety 109-8965 1. W arning–read the Operator’s Manual. 5. T ipping hazard–avoid sudden and sharp turns while on slopes, only mow across slopes less than 15 degrees, keep a safe distance from water , and only mow up and down slopes less than 15 degrees.
Specications Specications Model Numbers Serial Nos: 790,000 and Higher QST20BE422; QST22BE482; QST24BE522 Systems Engine • Engine Specications: See y our Engine Owner’ s Manual • RPM: .
Specications • Ar mrests: Standard–foam padded ip-up adjustable height ar mrests (optional on the 42 inch unit). • Seat Safety Switch: Incorporated into the Safety Interlock System. Hydrostatic Ground Drive System • Hydrostatic Pumps: T w o Hy dro Gear ZT2800 Integ rated driv e systems .
Product Overview Overall Height: All Units 41.8 inches (106 cm) T read Width: (Center to Center of Tires, W idthwise) 42 inch Deck 48 inch Deck 52 inch Deck Driv e Wheels 36.0 inc hes (91 cm) 36.0 inc hes (91 cm) 36.8 inc hes (93 cm) Caster Wheels 27.
Operation Operation Controls Note: Become familiar with all of the controls in Figure 3 and Figure 4 before y ou start the engine and operate the mac hine. Ignition Switch Located on control panel. The ignition switch is used to start and stop the engine.
Operation Parking Brake Lever Located on left side of the console (Figure 3). The brak e lev er engages a parking brake on the dri ve wheels . Pull the lev er up and rearward to engag e the brak e . Push the lev er forw ard and down to disengag e the brake .
Operation See inside bac k co ver to deter mine the appro ximate slope angle to be mow ed. Recommended Gasoline Use UNLEADED R egular Gasoline suitable for automotiv e use (87 pump octane minimum). Important: Nev er use methanol, gasoline containing methanol, or gasohol containing more than 10% ethanol because the fuel system could be damaged.
Operation Using Stabilizer/Conditioner Use a fuel stabilizer/conditioner in the mac hine to provide the following benets: • Keeps gasoline fresh during storage of 30 da ys or less . F or longer storage it is recommended that the fuel tank be drained.
Operation Figure 7 1. Throttle/Choke lever 5. Run 2. Blade control switch—Off position 6. Start 3. Ignition key 7. Choke 4. Off 8. Throttle–fast (detent position) 3. Mov e the lev er forw ard, beyond the detent, to engag e the chok e before starting a cold engine (Figure 7).
Operation The Safety Interlock System CAUTION If safety inter lock s witches are disconnected or damaged the machine could operate unexpectedly causing personal injur y . • Do Not tamper with the interlock switches. • Check the operation of the inter lock switches daily and replace an y damaged switches before operating the machine.
Operation CAUTION Machine can spin v er y rapidly by positioning one lev er too much ahead of the other . Operator may lose control of the machine, which may cause damage to the machine or injur y . • Use caution when making tur ns. • Slow the machine down before making shar p tur ns.
Operation Figure 10 1. T ransport release handle 3. Height adjuster pin 2. Height-of-cut positions 4. Foot actuated height-of-cut lever 2. Mov e the dec k height adjuster pin to the desired cut height.
Operation 1. Tip the seat forw ard. 2. Loosen the knob . 3. Mov e the seat to the desired position. 4. Tighten the knob . 5. Tip the seat bac k tot he closed position. Changing the Seat Ride Suspension The number of seat springs can be changed to maximize rider comfort.
Operation engine, remov e the k ey , and wait for all mo ving parts to stop before leaving the operating position. 3. Locate the bypass release knobs on either side of the engine dec k (Figure 15). Figure 15 1. Front of the machine. 5. Lever position for pushing the machine 2.
Operation W ARNING Loading a unit on a trailer or tr uck increases the possibility of backw ard tip-o ver . Backw ard tip-o ver could cause serious injur y or death. • Use extreme caution when operating a unit on a ramp . • Use only a single, full width ramp; Do Not use indi vidual ramps for each side of the unit.
Operation Cutting Speed T o improv e cut quality , use a slow er ground speed. A void Cutting T oo Low If the cutting width of the mo wer is wider than the mow er y ou previously used, raise the cutting height to ensure that unev en turf is not cut too short.
Maintenance Maintenance Note: Deter mine the left and right sides of the machine from the nor mal operating position. W ARNING While maintenance or adjustments are being made, someone could start the engine. Accidental star ting of the engine could seriously injure y ou or other bystanders.
Maintenance Maintenance Ser vice Inter v al Maintenance Procedure Before storage • Charge the battery and disconnect the battery cables . • P erform all maintenance procedures before storage. • P aint any chipped surfaces . Monthly • Check the battery c harge.
Maintenance Figure 18 Located on the back of the seat. 1. Read the instructions before servicing or performing maintenance 5. Check hydraulic oil level and refer to Operator ’ s manual for further instructions. 2. Grease idler pivot—All units. 6. Check tire pressure.
Maintenance 3. R emov e the foam sleev e from the element. 4. Gently tap the pleated side of the paper element to dislodge dirt. Do Not wash the paper element or use pressurized air , as this will damage the element. R eplace a dirty , bent, or damaged element.
Maintenance 3. Stop the engine , remo ve the key , and wait for all moving parts to stop before lea ving the operating position. 4. Clean the area around the drain plug and on the machine frame. Place a pan underneath mac hine directly belo w the drain hole in the frame as shown in Figure 21.
Maintenance Change the Hydraulic System Filter Service Interval: After the rst 250 hours Every 500 hours thereafter (Every 250 hours if using Mobil 1 15W50) 1. Stop engine, w ait for all moving parts to stop , and allow engine to cool. R emov e key and engag e parking brake .
Maintenance As stated in the maintenance inter v als , remo ve the spark plug, check condition, and reset the gap or replace with a new plug as necessar y .
Maintenance Fuel System Maintenance Replacing the Fuel Filter Service Interval: Every 100 hours/Y early (whichever comes rst) DANGER In cer tain conditions, gasoline is extremely ammable and highly explosiv e. A re or explosion from gasoline can bur n y ou and others and can damage proper ty .
Maintenance Charging the Battery Removing the Battery W ARNING Batter y ter minals or metal tools could shor t against metal machine components causing sparks.
Maintenance V oltage Reading Percent Charge Maximum Charger Settings Charging Inter v al 12.6 or g reater 100% 16 v olts/7 amps No Charging R equired 12.4 – 12.6 75–100% 16 v olts/7 amps 30 Min utes 12.2 – 12.4 50–75% 16 volts/7 amps 1 Hour 12.
Maintenance Drive System Maintenance Checking the T ire Pressure Service Interval: Every 25 hours/Monthly (whichever comes rst) Maintain the air pressure in the front and rear tires as specied. Unev en tire pressure can cause unev en cut. Check the pressure at the v alv e stem (Figure 31).
Maintenance Figure 33 48 and 52 Inch Deck 1. Blades front to rear 2. Measure here Figure 34 42 Inch Deck 1. Blades front to rear 2. Measure here 2. R otate the opposite ends of the blades forward. 3. Measure from a lev el surface to the cutting edge of the blades at the same position as in step 1.
Maintenance Figure 35 1. Blade 2. W asher 3. Bolt and washer assembly . Apply lubricant to threads—torque to 32-42 ft-lb (43-57 N-m). Sharpening the Blades 1. Use a le to sharpen the cutting edge at both ends of the blade (Figure 36). Maintain the original angle.
Maintenance off the clutc h pulley as shown in Figure 38 and Figure 39. W ARNING The spring is under tension when installed and can cause personal injur y . Be careful when removing the belt. Figure 38 48 and 52 Inch Decks 1. Outside puley 4. Mower belt 2.
Maintenance Figure 41 42 Inch Deck 1. Blades side to side 2. Measure here 6. Set anti-scalp rollers to top holes or remov e completely for this adjustment.
Maintenance tw o “ A ” thick blocks (see Bloc k Height and Rak e T able in Leveling the Mower Deck ) under eac h side of the front edge of the deck, but not under the anti-scalp roller brac kets . 7. Loosen the lev eling adjust loc king nuts (item 4) on all four corners so that the deck is sitting securely on all four blocks .
Maintenance Replacing the Discharge Deector DANGER An unco vered discharge opening could allo w the lawn mower to throw objects in the operator’s or bystander’s direction and result in serious injur y . Also, contact with the blade could occur .
Maintenance Adjustments T racking Adjustment If the mac hine turns right or left when handles are pushed forw ard together , adjust the trac king plate on the side opposite the direction of turn (see Figure 47). Loosen the hardware that holds the trac king plate .
Maintenance Note: If the mow er is not clean after one washing, soak it and let it stand for 30 min utes . Then repeat the process . 8. R un the mo wer again for one to three minutes to remo ve ex cess water . W ARNING A broken or missing w ashout tting could expose y ou and others to thrown objects or blade contact.
Storage Storage Cleaning and Storage 1. Disengag e the blade control switch, mo ve the motion controls outw ard to the neutral position, engag e parking brak e, stop the engine , and remov e the key . 2. R emov e grass clippings , dir t, and grime from the external parts of the entire machine , especially the engine.
T roubleshooting T roubleshooting Important: It is essential that all operator safety mechanisms be connected and in proper operating condition prior to mow er use. When a problem occurs , Do Not o verlook the simple causes . F or example: star ting problems could be caused by an empty fuel tank.
T roubleshooting Problem Possible Cause Cor rectiv e Action 1. Engine load is excessiv e. 1. R educe the g round speed. 2. Air cleaner is dirty . 2. Clean or replace the air cleaner element. 3. Oil level in the crankcase is low . 3. Add oil to the crankcase .
Schematics Schematics Electrical Diagram FUEL SOLENOID BRAKE SWITCH RH MOTION CONTROL LH MOTION CONTROL STARTER LOCKOUT & KILL RELAY START SOLENOID GROUND START SOLENOID SIGNAL START SOLENOID B+ P.
Schematics Electrical Logic Schematic START SOLENOID B+ START SOLENOID GROUND SHOWN WITH CONTROL LEVERS IN NEUTRAL LOCK POSITION (HANDLES OUT) SHOWN WITH BRAKE DISENGAGED TERMINAL I TERMINAL A TERMINA.
Consumer Warranty Conditions and Pr oducts Covered Exmark Mfg. Co. Inc. and its aff iliate, Exmark W arranty Company , pursuant to an agreement between them, jointly warrant on the terms and condition.
Service Record Date: Description of W ork Done: Service Done By: 53.
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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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Exmark 4500-450 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Exmark 4500-450 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Exmark 4500-450 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Exmark 4500-450 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Exmark 4500-450, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Exmark 4500-450.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Exmark 4500-450. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Exmark 4500-450 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
