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Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty
OPERATOR’S MANUAL
21-inch Rotary Mower — Model 439
IMPORTANT
READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, brush-
covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state
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This Operator’s Manual is an important part of your new lawn mower. It will help you assemble, prepare, and maintain the unit for best performance. Please read and understand what it says. Table of Contents Slope Gauge ....................................................... 3 Troubleshooting ................................................ 12 Safe Operation Practices ................................... 4 Safety Labels .................................................... 13 Setup and Adjustmen
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����������������������������������������������� ������������������������������������������������� ���������������������������� ��������������� ��� Use this page as a guide to determine slopes where you may not operate safely. Do not operate your lawn mower on such slopes. 1 Slope Gauge WARNING Do not mow on inclines with a slope in excess of 15 degrees (a rise of approximately 2-1/2 feet every 10 feet). A riding mower could overturn and cause serious injury. If operating a walk- behi
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WARNING: Engine Exhaust, some of its constituents, and certain vehicle compo- nents contain or emit chemicals known to State of California to cause cancer and birth defects or other reproductive harm. 2 DANGER: This machine was built to be operated according to the rules for safe operation in this manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. This machine is capable of amputating hands and feet and throwing objects
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19. Shut the engine off and wait until the blade comes to a 7. Extinguish all cigarettes, cigars, pipes and other sources complete stop before removing the grass catcher or unclog- of ignition. ging the chute. 8. Never fuel machine indoor because flammable vapors will The cutting blade continues to rotate for a few seconds after accumulate in the area. the engine is shut off. Never place any part of the body in 9. Never remove gas cap or add fuel while engine is hot or 2 the blade area u
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IMPORTANT: This unit is shipped without gasoline or oil in the engine. Fill up gasoline and oil as instructed in the accompanying engine manual BEFORE operat- ing your mower. 3 1. Remove any packing material which may be between upper and lower handles. Setup and � a. Pull up and back on upper handle as shown in Figure 3-1. Make certain the lower handle is seated Adjustment securely into the handle mounting brackets. b. Tighten star knobs securing upper handle to lower handle, Figure 3-
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5. Follow steps below to assemble the grass catcher (if needed). Make certain bag is turned right side out before assembling (warning label will be on the outside). 3 a. Place bag over frame so that its black plastic side is at the bottom. A b. Slip plastic channel of grass bag over hooks on the Setup and frame, Figure 3-5. All the plastic channels except center top of bag attach from outside of bag. Adjustment c. Attach center top of bag from inside of bag. C 6. Follow steps below to at
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Know Your Lawn Mower Blade Control 4 Operating Your Lawn Recoil Starter Mower Grass Catcher Cutting Height Adjustment Levers (for each wheel) WARNING The blade control is a Mulch Plug safety device. DO NOT bypass its operations. Side Discharge Chute Use extreme care when handling gasoline. Figure 4-1: The main components on the mower. Gasoline is extremely flammable and the vapors are explosive. Never fuel Now that you have setup your lawn mower, its important to become acquainted with
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Starting the Engine WARNING: Be sure no one other than the operator is standing near the lawn mower while starting engine or operating mower. Never 4 run engine indoors or in enclosed, poorly ventilated � areas. Engine exhaust contains carbon monoxide, an odorless and deadly gas. Keep hands, feet, hair and Operating loose clothing away from any moving parts on engine and lawn mower. Your Lawn Refer to engine manual for help with the engine. Mower � � 1. Place the fuel valve lever found
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Deck Care Clean underside of the mower deck after each use to prevent build-up of grass clippings or other debris. 1. Disconnect spark plug wire. Drain gasoline from lawn 5 mower, or place a piece of plastic under the gas cap. 2. Tip mower so that it rests on the housing. Keep the side with the air cleaner facing up. Hold mower firmly. Maintaining WARNING: Never tip the mower more than 90º in any direction and do not leave the mower Your Lawn tipped for any length of time. Oil can drain
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Blade Care WARNING: When removing the cutting blade for sharpening or replacement, protect your hands with a pair of heavy gloves or use a heavy rag 5 to hold the blade. Periodically inspect the blade adapter for cracks, especially if you strike a foreign object. Replace when Maintaining necessary. Follow the steps below for blade service. 1. Disconnect spark plug wire from spark plug. Turn Your Lawn mower on its side making sure that the air filter and the carburetor are up. Mower 2. R
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Remedy Cause Problem Engine fails to start 1. Blade control disengaged. 1. Engage blade control. 6 2. Spark plug wire disconnected. 2. Connect wire to spark plug. 3. Fuel tank empty or stale fuel. 3. Fill tank with clean, fresh gasoline. 4. Fuel valve closed. 4. Open fuel valve. See engine manual. 5. Faulty spark plug. 5. Clean, adjust gap, or replace. Trouble 6. Blocked fuel line. 6. Clean fuel line. 7. Engine flooded. 7. Wait a few minutes to restart. Shooting 1. Spark plug wire loose. 1. Co
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Safety Labels Found On Your Lawn Mower � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 7 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Safety Labels WARNING � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � DO NOT remove safety � � � � � � � � � � � � � � �
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F A E C N T O I R U 1 731-05564 Bail Cover 28 736-0270 Bell Washer .265 x .75 x .062 2 746-1130 Control Cable 40-inch 29 710-0654A TT Sems Screw 3.8-16 x 1.00 3 726-0240 Cable Tie 30 687-02071A Pivot Arm Assy - RH 8 4 664-04054 Grass Bag Assembly 687-02070A Pivot Arm Assy - LH 5 747-04080 Grass Bag Frame 31 732-04175 Spring Lever Parts List 6 732-0700 Trailshield Wire 32 710-1652 TT Screw 1/4-20 x .625 7 731-04998 Trailshield 33 714-0104 Int. Cotter Pin .072 dia. x 1.13 lg 8 747-04035 Pivot Ro
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MANUFACTURER’S LIMITED WARRANTY FOR The limited warranty set forth below is given by Cub Cadet LLC with e. Replacement parts that are not genuine Cub Cadet parts. respect to new merchandise purchased and used in the United States, its f. Service completed by someone other than an authorized service possessions and territories. dealer. “Cub Cadet” warrants this product against defects in material and g. Transportation charges and service calls. workmanship for a period of two (2) years commenc
