Table of Contents
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Table of Contents
Related Manuals for Exmark COMMERCIAL 21
Summary of Contents for Exmark COMMERCIAL 21
- Page 1 COMMERCIAL 21 For Serial Nos. 312,000,000 & Higher Part No. 4500-927 Rev. A...
- Page 2 Replacements may be ordered through the engine manufacturer. Exmark reserves the right to make changes or add improvements to its products at any time without incurring any obligation to make such changes to products manufactured previously.
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Page 3: Introduction
All Exmark parts are thoroughly tested and inspected before leaving the factory, however, attention is required on your part if you are to obtain the fullest measure of satisfaction and performance. -
Page 4: Table Of Contents
Contents Cleaning Under the Cover Plate (Non-Blade Brake Clutch Units Only)......31 Waste Disposal ..........32 Introduction ............3 Storage ..............33 Safety ..............5 Preparing the Fuel System.......33 Safety Alert Symbol ......... 5 Preparing the Engine ........33 Safe Operating Practices ........5 General Storage Information ......33 Safety and Instructional Decals ....... -
Page 5: Safety
• Become familiar with the safe operation of the Standards Institute in effect at the time of production. equipment, operator controls, and safety signs. Exmark designed and tested this lawn mower to offer • All operators and mechanics should be trained. reasonably safe service; however, failure to comply The owner is responsible for training the users. - Page 6 Safety • Inspect the area where the equipment is to be DANGER used and remove all rocks, toys, sticks, wires, In certain conditions during fueling, static bones, and other foreign objects which can be electricity can be released causing a spark thrown by the machine and may cause personal which can ignite gasoline vapors.
- Page 7 Safety Operation • Park the machine on level ground. Stop engine, wait for all moving parts to stop, and remove the WARNING spark plug wire(s). Operating engine parts, especially the muffler, – Before checking, cleaning or working on the become extremely hot. Severe burns can occur mower.
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Page 8: Slope Operation
Failure to use original • Remove or mark obstacles such as rocks, tree Exmark parts could cause serious injury or limbs, etc. from the mowing area. Tall grass can death. Making unauthorized changes to the hide obstacles. -
Page 9: Safety And Instructional Decals
Exmark equipment dealer or labels. distributor or from Exmark Mfg. Co. Inc. • Replace all worn, damaged, or missing safety • Safety signs may be affixed by peeling off the signs. - Page 10 Safety 109-9317 116-1922 117–2718 116-2737...
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Page 11: Specifications
Releasing the blade control bail will cause • Engine Specifications: See your Engine Owner’s the engine to stop. Manual • Engine Oil Type: Exmark 4–Cycle Premium Transmission (Self Propelled Units) Engine Oil • RPM: 3300 RPM (No Load) Variable Speed Range: 0–4.2 mph (6.8 km/hr) -
Page 12: Product Overview
Product Overview Overall Length and Height at Product Overview 2 1/2 inch Cutting Height: Handle Setting Length Height High 61.00 inches 39.00 inches (99.1 (154.9 cm) 63.00 inches 37.50 inches (95.3 Medium (160.0 cm) 64.50 inches 35.00 inches (88.9 (163.8 cm) Figure 3 1. -
Page 13: Operation
Operation Operation is depressed toward the handle. When this bail is released the unit will stop moving. Note: Determine the left and right sides of the Throttle-Choke Lever (ECXHN21) machine from the normal operating position. Located on the left side of the handle bar. Controls The lever is used to control engine speed. -
Page 14: Pre-Start
Operation Figure 7 1. Rotate clockwise to close 2. Rotate counterclockwise to open On ECXHN21 and ECXHNBBC21 units, the fuel shut off valve is located on the engine as shown in Figure 8. Rotate 1/4 turn clockwise to shut off fuel. Figure 5 Rotate the valve 1/4 turn counterclockwise to turn Clear plastic cover removed for clarity... -
Page 15: Operating Instructions
Operation Operating Instructions Handle Adjustment The height of the handle can be adjusted for comfortable operation. Stand behind the handle to determine the height. To adjust the handle height, position the hardware into one of the three holes in the handle bracket. Open the Fuel Shut-Off Valve Rotate the valve 1/4 turn counterclockwise to turn Figure 10... -
Page 16: Stopping The Engine
Operation 5. For units without a Blade Brake Clutch: Hold self-propels at the maximum ground speed. the blade control bail to the handle. Release the drive bail to stop moving when you use the lawn mower for trimming or whenever 6. - Page 17 Operation Using the Mulch Plug 1. Stop the engine and wait for all moving parts to stop. Occasionally you may wish to use the mulch plug to 2. Move the lawn mower onto a paved surface in mulch the grass and leaf clippings back into the lawn. a non-windy area.
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Page 18: Adjusting The Cutting Height
Operation the blade has not properly stopped, resulting WARNING in an unsafe operating condition. Contact an Adjusting the cutting height levers could bring Authorized Service Dealer. your hands into contact with a moving blade. A moving blade can cause serious injury. DANGER •... -
Page 19: Using The Grass Bag
(Figure 17). Check the grass bag frequently. If it is damaged, install a new Exmark replacement bag. Cut the grass until the bag is full. Note: Do Not overfill the bag. -
Page 20: Operating Tips
Replace the blade when necessary with an original two notches higher than the rear cutting height. Exmark replacement blade. This makes it easier to feed the leaves under the • Clean the air filter frequently. Mulching stirs up lawn mower deck. -
Page 21: Maintenance
Maintenance Maintenance Note: Determine the left and right sides of the machine from the normal operating position. WARNING WARNING If you leave the wire on the spark plug, someone Tipping the lawn mower may cause the fuel could accidentally start the engine. Accidental to leak from the carburetor or the fuel tank. -
Page 22: Periodic Maintenance
4. If the oil level is low, wipe off the area around the oil fill cap, remove cap and fill to the “FULL” mark on the dipstick. Exmark 4-Cycle Premium Engine Oil is recommended; refer to the Engine Figure 18 Owner's manual for an acceptable alternative. - Page 23 Maintenance Always mow with a sharp blade. A sharp blade cuts DANGER cleanly and without tearing or shredding the grass A worn or damaged blade can break. A blade. piece of the blade could be thrown into the 1. Stop the engine and wait for all moving parts to operator’s or bystander’s area, resulting in stop.
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Page 24: Check For Loose Hardware
23-27 ft-lb (31-37 N m). Brake Clutch Units Only) For Units without a Blade Brake Clutch: Install a sharp, balanced Exmark blade, blade Service Interval: Before each use or daily support, and blade bolt. The sail of the blade... -
Page 25: Service Air Filter (Kawasaki Units)
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 filter (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 filter assembly;... -
Page 26: Change Engine Oil
Maintenance (ECXHNBBC21 and psi (207 kPa) through the filter from the wire ECXHN21 Units). (May screen side to remove any excess dirt. If the paper need more often if they are element is excessively dirty, replace it. damaged or excessively Note: Never try to brush dirt off the paper dirty.) element;... -
Page 27: Change Oil Filter (Ecxka21 And Ecxkabbc21)
6. Remove the oil filter. 7. Use your finger to coat the gasket on the new Check Spark Plugs filter with clean Exmark 4–Cycle Premium Engine oil (see Figure 28). Service Interval: Every 100 hours 1. Stop the engine and wait for all moving parts to stop. -
Page 28: Emptying The Fuel Tank And Cleaning The Fuel Filter
Maintenance Adjustments Note: Replace a cracked, fouled, or dirty spark plug. Do Not clean the electrodes because grit Note: Wait for all moving parts to stop and remove entering the cylinder can damage the engine. spark plug wire before servicing, cleaning, or making 5. -
Page 29: Adjusting The Blade Brake Cable (Blade Brake Clutch Units Only)
Maintenance 3. If the lawn mower does not self propel with bail cover tabs (see Figure 30). Remove any debris engaged, tighten the belt by turning the drive under the cover. cable nuts clockwise. To maximize belt life, Do 4. Loosen the cable clamp screw until the cable Not overtighten the belt. -
Page 30: Cleaning
Maintenance Cleaning Scraping Method If washing does not remove all debris from under the lawn mower, scrape it clean. Clean Grass Build-Up Under 1. Disconnect the wire from the spark plug. Deck 2. Drain the fuel from the fuel tank. Refer to Service Interval: Before each use or daily Emptying the Fuel Tank and Cleaning the Fuel Filter section. -
Page 31: Cleaning The Blade Brake Clutch Shield (Blade Brake Clutch Units Only)
Maintenance 2. Disconnect the wire from the spark plug (see 7. Remove the BBC shield and brush or blow all Figure 9 and Figure 10). the debris from under the shield and around the BBC system. 3. Pull upward on the back of the cover to unsnap the front and back cover tabs (see Figure 30). -
Page 32: Waste Disposal
Maintenance 8. Reinstall the cover plate and torque the screws to 35-45 ft-lb (47-61 N-m). 9. Install the blade, blade support, and the blade bolt. 10. Turn the lawn mower upright. 11. Connect the wire to the spark plug. Waste Disposal Motor Oil Disposal Engine oil and hydraulic oil are both pollutants to the environment. -
Page 33: Storage
Storage Storage 2. Clean any dirt and chaff from the cylinder, cylinder head fins, and blower housing. Preparing the Fuel System 3. Remove grass clippings, dirt, and grime from the external parts of the engine, the shrouding, and To prepare the lawn mower for off season storage, the top of the lawn mower housing. -
Page 34: Troubleshooting
Troubleshooting Troubleshooting 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 overlook the simple causes. For example: starting problems could be caused by an empty fuel tank. The following table lists some of the common causes of trouble. - Page 35 Troubleshooting Problem Possible Cause Corrective Action Lawn mower does not self-propel. 1. The self-propel drive cable is out of 1. Adjust the self-propel drive cable. Replace (Self-Propel Units Only) adjustment or is damaged. the cable if necessary. 2. There is debris under the belt cover. 2.
- Page 36 Exmark. No Claim of breach of warranty shall be cause for cancellation or rescission of the contract of sale of any Exmark mower. There are no other express warranties except for engine and special emission system coverage.
- Page 37 Notes:...
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Page 38: Service Record
Service Record Date: Description of Work Done: Service Done By:... - Page 40 SEE EXMARK’S COMPLETE LINE OF ACCESSORIES AND OPTIONS MID-MOUNT RIDING ACCESSORIES AND OPTIONS CUSTOM RIDE SEAT SUSPENSION SYSTEM OPERATOR CONTROLLED DISCHARGE FULL SUSPENSION SEAT ROLL OVER PROTECTION SYSTEM (ROPS) DECK LIFT ASSIST KIT SUN SHADE HITCH KIT TRASH CONTAINER LIGHT KIT...