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. 316,000,000 & Higher Part No. 4502-544 Rev. A...
- Page 2 SAE testing and gross/net power rating standards (J1940, J1995, J1349). 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 Waste Disposal ..........33 Storage ..............34 Preparing the Fuel System.......34 Introduction ............3 Preparing the Engine ........34 Safety ..............5 General Storage Information ......34 Safety Alert Symbol ......... 5 Removing the Lawn Mower from Safe Operating Practices ........5 Storage............34 Safety and Instructional Decals ....... -
Page 5: Safety
Standards Institute in effect at the time of production. • Become familiar with the safe operation of the Exmark designed and tested this lawn mower to offer equipment, operator controls, and safety signs. reasonably safe service; however, failure to comply •... - 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 mower. become extremely hot.
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Page 8: Maintenance And Storage
Unauthorized modifications to the original • Remove or mark obstacles such as rocks, tree equipment or failure to use original Exmark limbs, etc. from the mowing area. Tall grass can parts could lead to serious injury or death. -
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 130-9670 1. Severing hazard of hand or foot; mower blade—keep away from moving parts; keep all guards and shields in place. 125-8403 Kawasaki Non-BBC Units 1. Push the primer once. 2. Pull the recoil-start handle. 130-9656 BBC Units 1. Choke 3.
- Page 11 Safety 116-7583 1. Warning–Read the Operator’s Manual. Do Not operate 4. Cutting/dismemberment hazard of hand or foot, mower this machine unless you are trained. blade—stay away from moving parts; keep all guards in place. 2. Thrown object hazard—keep bystanders a safe distance 5.
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Page 12: Specifications
• Cutting Width: 21 inches (53.3 cm) Manual • Blade Brake: When the blade engagement control • Engine Oil Type: Exmark 4–Cycle Premium is moved to the disengaged position a friction Engine Oil brake pad stops the rotation of the blades. -
Page 13: Product Overview
Operation Product Overview Operation Note: Determine the left and right sides of the machine from the normal operating position. Controls Blade Control Bail Located on the upper handle as shown in Figure 4. When the blade control bail is depressed, the system senses that the operator is in the normal operator's position. - Page 14 Operation on the distance between the bail and the handle. When this bail is released the unit will stop moving. Throttle-Choke Lever (Honda Unit) Located on the left side of the handle bar. The lever is used to control engine speed. Moving the throttle to the full forward (Choke) position will place the lever in the choke position.
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Page 15: Pre-Start
Operation Pre-Start Fill fuel tanks. See Fuel Recommendations in the Specifications section for additional gasoline information. Do Not add oil to gasoline. Do Not overfill fuel tank. Fill the fuel tank to the bottom of the filler neck. The empty space in the tank allows gasoline to expand. -
Page 16: Stopping The Engine
Operation 3. For Kawasaki Units without a Blade Brake 1. Start the engine. Clutch: Push the primer bulb firmly and hold for 2. Squeeze the drive bail against the handle (see one second then release. Figure 4). For Honda and BBC Units: Move the Note: You can vary the ground speed by choke/throttle control forward to the choke increasing or decreasing the distance between... - Page 17 Operation Figure 10 1. Blade control lock lever 4. Push forward 2. Locked position 5. Unlocked position 3. Blade control bail 6. Squeeze against handle 3. Squeeze the blade control bail against the handle and release the blade control lock lever; the blade Figure 11 should engage.
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Page 18: Adjusting The Cutting Height
Operation DANGER If the blade brake clutch system is inoperative, the blade will continue to rotate when you release the blade control bail. Contact with the blade could occur, causing serious injury. • Check the BBC operation before each use. •... -
Page 19: Using The Grass Bag
Operation WARNING Adjusting the cutting height levers could bring your hands into contact with a moving blade. A moving blade can cause serious injury. • Stop the engine and wait for all movement to stop before adjusting the cutting height. •... -
Page 20: Operating Tips
Check the grass bag frequently. If it is and reduces engine performance. damaged, install a new Exmark replacement bag. Cutting Grass • Grass grows at different rates at different times Cut the grass until the bag is full. - Page 21 Operation • Alternate the mowing direction. This helps disperse the clippings over the lawn for even fertilization. • If the finished lawn appearance is unsatisfactory, try one or more of the following: – Sharpen the blade. – Walk at a slower pace while mowing. –...
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Page 22: 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 23: 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 16... - Page 24 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 25: Check For Loose Hardware
44-56 ft-lb (60-76 N m). Clutch Bail Operation (Blade For Units without a Blade Brake Clutch: Install a sharp, balanced Exmark blade, blade Brake Clutch Units Only) support, and blade bolt. The sail of the blade must point toward the top of the lawn mower Service Interval: Before each use or daily housing for proper installation. -
Page 26: 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 27: Change Engine Oil
Maintenance damaged or excessively 9. Clean the foam element in warm, soapy water or dirty.) in a nonflammable solvent. Note: Do Not operate the engine without the air 10. Rinse and dry the foam element thoroughly. cleaner assembly; extreme engine damage will occur. 11. -
Page 28: Change Oil Filter (Kawasaki X-Series Units)
3. Clean around the spark plug. 7. Use your finger to coat the gasket on the new 4. Remove the spark plug from the cylinder head. filter with clean Exmark 4–Cycle Premium Engine Note: Replace a cracked, fouled, or dirty spark oil (see Figure 26). -
Page 29: Emptying The Fuel Tank And Cleaning The Fuel Filter
Maintenance Adjustments 6. Install the spark plug and the gasket seal. 7. Torque the plug to 17 ft-lb (23 N-m). Note: Wait for all moving parts to stop and remove 8. Connect the wire to the spark plug. spark plug wire before servicing, cleaning, or making any adjustments to the unit. -
Page 30: 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 28). 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 31: Cleaning
Maintenance Cleaning Scraping Method If washing does not remove all debris from under the Clean Grass Build-Up Under lawn mower, scrape it clean. Deck 1. Disconnect the wire from the spark plug. 2. Drain the fuel from the fuel tank. Refer to Service Interval: Before each use or daily Emptying the Fuel Tank and Cleaning the 1. -
Page 32: Cleaning Under The Belt Cover (Self-Propelled Units Only)
Maintenance Cleaning the Blade WARNING Brake Clutch Shield Grass clippings and other objects can be thrown from an open discharge tunnel. Thrown objects (Blade Brake Clutch Units can cause serious injury or kill the operator or Only) bystanders. Never start or operate the lawn mower unless one Service Interval: Every 50 hours of the following is true: 1. -
Page 33: Waste Disposal
Maintenance Waste Disposal Cleaning Under the Cover Plate (Non-Blade Brake Motor Oil Disposal Clutch Units Only) Engine oil is a pollutant to the environment. Dispose Service Interval: Every 50 hours of used oil at a certified recycling center or according to your state and local regulations. -
Page 34: 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 35: 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 36 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 37 No Claim of breach of warranty shall be cause for cancellation provided by Exmark. or rescission of the contract of sale of any Exmark machine. There are no other express warranties except for engine and All implied warranties of merchantability (that the special emission system coverage.
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Page 38: Service Record
Service Record Date: Description of Work Done: Service Done By:... - Page 40 Pack) or Fill in Below Engine Model No. and Spec. No. Model No. Engine Serial No. (E/No) Serial No. ©2015 Exmark Mfg. Co., Inc. Part No. 4502-544 Rev. A Industrial Park Box 808 (402) 223-6300 Beatrice, NE 68310 Fax (402) 223-5489...