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Exmark COMMERCIAL 21 - page 1
COMMERCIAL 21 For Serial Nos. 312,000,000 & Higher Part No. 4500-927 Rev . A ...
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Exmark COMMERCIAL 21 - page 2
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 arr ester mufer . It is a violation of Califor nia Public Resource Code (CPRC) Se ...
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Exmark COMMERCIAL 21 - page 3
Introduction CONGRATULATIONS on the purchase of your Exmark Mo wer . This product has been carefully designed and manufactured to giv e you a maximum amount of dependability and years of trouble-free operation. This manual contains operating, maintenance, adjustment, and safety instr uctions for y our Exmark mow er . BEFORE OPERATING Y OUR MO WER, ...
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Exmark COMMERCIAL 21 - page 4
Contents Introduction . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . . 3 Safety .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. . . . .. . . .. 5 Safety Alert Symbol . . .. . . .. . . . .. . . .. . . .. . . . .. . . .. . . . .. . . .. . ...
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Exmark COMMERCIAL 21 - page 5
Safety Safety Safety Alert Symbol This la wn mow er meets or ex ceeds the Consumer Product Safety Commission (CPSC) blade safety requirements for w alk-behind rotar y mow ers and 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 ...
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Exmark COMMERCIAL 21 - page 6
Safety • Inspect the area where the equipment is to be used and remov e all rocks , to ys , stic ks , wires , bones , and other foreign objects whic h can be thrown b y the machine and ma y cause personal injur y to the operator or bystanders . DANGER In cer tain conditions gasoline is extremely ammable and v apors are explosi ve. A re or e ...
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Exmark COMMERCIAL 21 - page 7
Safety Operation W ARNING Operating engine par ts, especially the mufer , become extremely hot. Sev ere bur ns can occur on contact and de bris, such as leav es, grass, br ush, etc. can catch re. • Allow engine parts, especially the muf er , to cool before touching . • Remo ve accumulated debris from muf er and engine area. • Inst ...
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Exmark COMMERCIAL 21 - page 8
Safety • Use extreme care when loading or unloading the machine into a trailer or tr uck. • Use care when approaching blind cor ners , shr ubs , trees , or other objects that ma y obscure vision. Slope Operation Use Extreme caution when mo wing and/or turning on slopes as loss of traction and/or tip-o v er could occur . The operator is responsi ...
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Exmark COMMERCIAL 21 - page 9
Safety Safety and Instructional Decals • Keep all safety signs legible. R emo v e all grease, dirt and debris from safety signs and instr uctional labels . • R eplace all w orn, damaged, or missing safety signs . • When replacement components are installed, be sure that cur rent safety signs are afx ed to the replaced components . • If a ...
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Exmark COMMERCIAL 21 - page 10
Safety 109-9317 1 16-1922 1 17–2718 1 16-2737 10 ...
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Exmark COMMERCIAL 21 - page 11
Specications Specications Model Numbers Serial Nos: 312,000,000 and Higher ECSKAP21; ECSKA21; ECXKA21; ECXHN21; ECXKABBC21; ECXHNBBC21 Systems Engine • Engine Specications: See your Engine Owner’ s Manual • Engine Oil T ype: Exmark 4–Cycle Premium Engine Oil • RPM: 3300 RPM (No Load) Fuel System • Capacity: ECSKA21 and ECSKAP21 ...
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Exmark COMMERCIAL 21 - page 12
Product Overview Overall Length and Height at 2 1/2 inch Cutting Height: Handle Setting Length Height High 61.00 inches (154.9 cm) 39.00 inches (99.1 cm) Medium 63.00 inches (160.0 cm) 37.50 inches (95.3 cm) Low 64.50 inches (163.8 cm) 35.00 inches (88.9 cm) Product Overview Figure 3 1. Grass bag 5. Discharge door 2. Handle 6. Rear wheel height adj ...
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Exmark COMMERCIAL 21 - page 13
Operation Operation Note: Deter mine the left and right sides of the machine from the normal operating position. Controls Blade Control Bail Located on the upper handle as sho wn in Figure 4. When the blade control bail is depressed, the system senses that the operator is in the nor mal operator's position. • F or Units with a Blade Brak e C ...
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Exmark COMMERCIAL 21 - page 14
Operation Figure 5 Clear plastic cover removed for clarity 1. Engine stop switch 2. Press “ST OP” to kill engine 3. Press “I” before starting engine Fuel Shut-Off V alve The fuel shut off v alv e is located betw een the carburetor and the fuel tank. The fuel shut off v alv e shuts off the o w of fuel when the machine will not be used for ...
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Exmark COMMERCIAL 21 - page 15
Operation Operating Instructions Handle Adjustment The height of the handle can be adjusted for comfortable operation. Stand behind the handle to deter mine the height. T o adjust the handle height, position the hardware into one of the three holes in the handle brac ket. Open the Fuel Shut-Off V alve R otate the v alv e 1/4 turn counterclockwise t ...
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Exmark COMMERCIAL 21 - page 16
Operation 5. F or units without a Blade Brak e Clutch: Hold the blade control bail to the handle. 6. Pull the starter handle lightly until you feel resistance, then pull it sharply . Allow the rope to return slowly . 7. F or ECXHNBBC21 Units: Gradually push in the c hoke control as the engine w ar ms up . 8. F or ECXHN21 Units: When the engine star ...
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Exmark COMMERCIAL 21 - page 17
Operation Using the Mulch Plug Occasionally y ou ma y wish to use the mulc h plug to mulc h the g rass and leaf clippings bac k into the la wn. • Installing the Mulch Plug: 1. Stop the engine and w ait for all moving parts to stop . 2. R emov e the g rass bag if it is on the mow er . 3. Raise the disc harge door and insert the m ulch plug into th ...
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Exmark COMMERCIAL 21 - page 18
Operation the blade has not properly stopped, resulting in an unsafe operating condition. Contact an Authorized Ser vice Dealer . DANGER If the blade brak e clutch system is inoperativ e, the blade will continue to rotate when y ou release the blade control bail. Contact with the blade could occur , causing serious injur y . • Check the BBC opera ...
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Exmark COMMERCIAL 21 - page 19
Operation Figure 16 1. Front wheel shaft assembly 4. Front quadrant block cut heights 2. Pull up 5. Pull outward 3. Height adjuster 6. Shaft groove 2. Insert the front wheel shaft assembly into the desired cut height setting in the front quadrant block. Lower the height adjuster into the g roo v e on the front wheel shaft. Pull and push the wheel s ...
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Exmark COMMERCIAL 21 - page 20
Operation DANGER If the discharge door does not close completely , the la wn mow er could throw objects. Thrown objects can result in serious personal injur y or death to the operator or bystanders. • Never open the door to the discharge opening when the engine is running . • If y ou cannot close the door because the grass clippings clog the di ...
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Exmark COMMERCIAL 21 - page 21
Maintenance Maintenance Note: Deter mine the left and right sides of the mac hine from the nor mal operating position. W ARNING If you lea ve the wire on the spark plug, someone could accidentally star t the engine. Accidental star ting of the engine could seriously injure y ou or other bystander s. Disconnect the wire from the spark plug before y ...
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Exmark COMMERCIAL 21 - page 22
Maintenance Maintenance Ser vice Inter v al Maintenance Procedure Every 300 hours • Replace the paper air lter (K a wasaki Units). (May need more often in dusty conditions . See the Engine manual for additional infor mation.) Y early or before storage • Empty the fuel tank before repairs as directed or before storage. Periodic Maintenance Ch ...
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Exmark COMMERCIAL 21 - page 23
Maintenance Alwa ys mo w with a sharp blade . A sharp blade cuts cleanly and without tearing or shredding the grass blade. 1. Stop the engine and w ait for all mo ving parts to stop . 2. Disconnect the wire from the spark plug ( Figure 9 and Figure 10). 3. Drain the gasoline from the fuel tank. Refer to Emptying the Fuel T ank and Cleaning the Fuel ...
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Exmark COMMERCIAL 21 - page 24
Maintenance Figure 22 1. Inner cutting edge radius 2. Cutting angle C. Chec k the balance of the blade b y placing the center hole of the blade ov er a nail or screwdri ver shank clamped horizontally in a vise ( Figure 23). If either end of the blade rotates downw ard, le that end (not the cutting edge). The blade is properly balanced when neith ...
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Exmark COMMERCIAL 21 - page 25
Maintenance Service Air Filter (Kawasaki Units) Service Interval: Every 25 hours—Clean the foam pre-cleaner (Kawasaki Units). Every 300 hours— Replace the paper air lter (Kawasaki Units). (May need more often in dusty conditions. See the Engine manual for additional information.) Note: Do Not operate the engine without the air lter assemb ...
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Exmark COMMERCIAL 21 - page 26
Maintenance (ECXHNBBC21 and ECXHN21 Units). (May need more often if they are damaged or excessively dirty .) Note: Do Not operate the engine without the air cleaner assembly; extreme engine damage will occur . 1. Stop the engine and w ait for all mo ving parts to stop . 2. Disconnect the wire from the spark plug ( Figure 9). 3. R emov e the tw o wi ...
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Exmark COMMERCIAL 21 - page 27
Maintenance 5. Place a suitable drain pan under the dipstic k/oil drain. 6. Clean around the dipstick. 7. R emov e the dipstick by rotating the cap counterclockwise and pulling it out. 8. Raise the left side of the lawn mo wer to drain the oil from the dipstick ll tube into the drain pan. 9. After draining the oil, return the la wn mo wer to the ...
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Exmark COMMERCIAL 21 - page 28
Maintenance Note: R eplace a cracked, fouled, or dirty spark plug . Do Not clean the electrodes because grit entering the cylinder can damage the engine . 5. Set the g ap on the plug to 0.030 inc h (0.76 mm) ( Figure 29). Figure 29 1. Side electrode 3. Air gap—0.030 inch (0.76 mm) 2. Center electrode insulator 6. Install the spark plug and the ga ...
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Exmark COMMERCIAL 21 - page 29
Maintenance 3. If the lawn mow er does not self propel with bail engag ed, tighten the belt by turning the dri v e cable nuts clockwise . T o maximize belt life , Do Not ov ertighten the belt. If the lawn mow er creeps forw ard without the bail engaged, loosen the belt by turning the driv e cable nuts counterclockwise . Figure 31 1. Adjustment of d ...
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Exmark COMMERCIAL 21 - page 30
Maintenance Cleaning Clean Grass Build-Up Under Deck Service Interval: Before each use or daily 1. Stop engine, w ait for all moving par ts to stop , and remov e spark plug wire . 2. T o ensure the best perfor mance , keep the underside of the la wn mower housing clean. CAUTION The mo wer may dislodge material from under the mower housing . • W e ...
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Exmark COMMERCIAL 21 - page 31
Maintenance 2. Disconnect the wire from the spark plug (see Figure 9 and Figure 10). 3. Pull upw ard on the back of the co v er to unsnap the front and bac k cov er tabs (see Figure 30). 4. Lift off the cov er and br ush out all the debris around the belt area. 5. Install the belt cov er b y pushing down on the rear rst and then snapping the fro ...
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Exmark COMMERCIAL 21 - page 32
Maintenance 8. R einstall the co v er plate and tor que the screws to 35-45 ft-lb (47-61 N-m). 9. Install the blade , blade support, and the blade bolt. 10. T urn the lawn mo wer upright. 11. Connect the wire to the spark plug . W aste Disposal Motor Oil Disposal Engine oil and hy draulic oil are both pollutants to the environment. Dispose of used ...
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Exmark COMMERCIAL 21 - page 33
Storage Storage Preparing the Fuel System T o prepare the la wn mo wer for off season storage, perfor m the recommended maintenance procedures . Store the lawn mow er in a cool, clean, dr y place. Cov er the lawn mower to k eep it clean and protected. W ARNING Gasoline can vaporiz e if y ou store it o v er long periods of time. Gasoline vapors can ...
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Exmark COMMERCIAL 21 - page 34
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: star ting problems could be caused b y an empty fuel tank. The following table lists some of the common causes ...
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Exmark COMMERCIAL 21 - page 35
T roubleshooting Problem Possible Cause Cor rectiv e Action 1. The self-propel drive cable is out of adjustment or is damaged. 1. Adjust the self-propel driv e cable . R eplace the cable if necessary . Lawn mo wer does not self-propel. (Self-Propel Units Only) 2. There is debris under the belt cov er . 2. Clean the debris from under the belt cov er ...
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Exmark COMMERCIAL 21 - page 36
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 herein, that we will repair , replace or adjust any part on these products and found by us (in the ex ercise of our reasonable discretion) to be defect iv e in factor ...
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Exmark COMMERCIAL 21 - page 37
Notes: 37 ...
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Exmark COMMERCIAL 21 - page 38
Service Record Date: Description of W ork Done: Service Done By: 38 ...
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Exmark COMMERCIAL 21 - page 39
39 ...
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Exmark COMMERCIAL 21 - page 40
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 RIDE SEA T SUSPENSION SYSTEM FULL SUSPENSION SEA T DECK LIFT ASSIST KIT HITCH KIT LIGHT KIT 12 V PO WER PORT MICRO-MULCH SYSTEM OPERA T OR CONTROLLED ...
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