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Troy-Bilt 12A-998Q766 Operator's Manual

21” self-propelled mower
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Operator's Manual
21" Self-Propelled
Mower
Model 998Q
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
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
laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the
above is required by law (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply
on federal lands. A spark arrester for the muffler is available through your nearest authorized engine service dealer or contact the service
department, P.O. Box 361131 Cleveland, Ohio 44136-0019.
TROY-BILT LLC., P.O. Box 361131, Cleveland, Ohio 44136-0019
PRINTED IN U.S.A.
769-01014.fm
Form No.
(12/2003)

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Summary of Contents for Troy-Bilt 12A-998Q766

  • Page 1 A spark arrester for the muffler is available through your nearest authorized engine service dealer or contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019. TROY-BILT LLC., P.O. Box 361131, Cleveland, Ohio 44136-0019 PRINTED IN U.S.A.

  • Page 2: Table Of Contents

    Customer Support Department or an authorized service dealer. Copy the model number here: Copy the serial number here: TROY-BILT LLC P. O. BOX 3 6 1 1 3 1 www.troybilt.com CLEVELAND, OH 44136...

  • Page 3: Important Safe Operation Practices

    SECTION 1: IMPORTANT SAFE OPERATION PRACTICES WARNING: This symbol points out important safety instructions which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury.
  • Page 4 immediately and the blade will stop rotating within 3. Do not mow on wet grass. Unstable footing could three seconds. cause slipping. 9. Mow in daylight or good artificial light; walk, not run. Children 10. Stop the blade when crossing gravel drives, walkways or roads.
  • Page 5 10. Never over fill fuel tank. Fill tank to no more than ½ 4. Mower blades are sharp and can cut. Wrap the inch below bottom of filler neck to provide space for blade or wear gloves, and use extra caution when fuel expansion.

  • Page 6: Slope Gauge

    SECTION 2: SLOPE GAUGE Use this page as a guide to determine slopes where you may not operate safely. Do not operate your lawn mower on such slopes.

  • Page 7: Assembling Your Lawn Mower

    SECTION 3: ASSEMBLING YOUR LAWN MOWER Removing Unit From Carton Setting Up Your Lawn Mower • Remove staples, break glue on top flaps, or cut Assembling Handle tape at carton end and peel along top flap to open • Lift up and pull back on the upper handle to raise carton.
  • Page 8 • Fasten the cable to the lower handle with the two cable ties found on the lower handle. Pull the cable Grass Bag Adapter ties tight and trim off the excess. See Figure 5. Cable Tie Lower Handle Wing Nuts Figure 5 Figure 7 Attaching Starter Rope...

  • Page 9: Know Your Lawn Mower

    SECTION 4: KNOW YOUR LAWN MOWER Recoil Starter Read this operator’s manual and safety rules before operating your lawn mower. Compare the illustration in The recoil starter is attached to the support rod located Figure 10 with your lawn mower to familiarize yourself on the right side of the lower handle.

  • Page 10: Operating Your Lawn Mower

    SECTION 5: OPERATING YOUR LAWN MOWER WARNING: WARNING: Be sure no one other than the Read, understand, and follow all operator is standing near the lawn mower while instructions and warnings on the machine and starting engine or operating mower. in this manual before operating.

  • Page 11: Making Adjustments

    • Disconnect spark plug wire and move away from WARNING: If the mower strikes a foreign spark plug to prevent accidental starting. object, stop the engine. Remove spark plug wire from the spark plug and thoroughly inspect Using Your Lawn Mower for any damage.
  • Page 12 Cutting Height Caster Lock Adjustment Your mower is shipped with the cutting height in the The casters can be locked in a straight ahead position lowest position. To adjust the rear cutting height, or position to swivel freely. See Figure 14. proceed as follows: •...

  • Page 13: Maintaining Your Lawn Mower

    Engine Adjustments • Start engine and place shift lever in the sixth speed position. Stop engine and disconnect spark plug Refer to the engine manufacturer’s Owner’s/Operator’s wire and ground it against engine. Manual, packed separately with your unit, for these •...

  • Page 14: Servicing Your Lawn Mower

    Engine Lubrication • Follow the engine manual instructions and recommended schedule for lubricating engine Refer to the lubrication chart in Figure 17. components. Blade Control Handle • Lubricate the pivot points on the blade control Lubricate handle at least once a season with light oil. The blade control must operate freely in both directions.
  • Page 15 the blade always be removed from the adapter • Remove the three hex screws holding the baffle to when testing for balance. the deck and pivot baffle towards the rear of the mower. See Figure 19. Installing the Blade • Before reinstalling the blade and the blade adapter to the unit, lubricate the engine crankshaft and the inner surface of the blade adapter with light oil.
  • Page 16 • Squeeze the belt together and push it forward, • Pinch both sides of the belt together so that the belt while pressing the control arm inward towards the is not in the pulley groove, and the lower pulley can deck and remove the six speed cable from the slot.

  • Page 17: Off-Season Storage

    SECTION 9: OFF-SEASON STORAGE Storing Your Lawn Mower • Coat mower’s cutting blade with chassis grease to prevent rusting. The following steps should be taken to prepare your • Store mower in a dry, clean area. Do not store next lawn mower for storage.

  • Page 18: Illustrated Parts List

    SECTION 11: PARTS LIST FOR MODEL 998Q 36 37 47 57 IMPORTANT: proper working machine, use Factory Approved Parts. V-BELTS are specially designed to engage and disengage safely. A substitute (non OEM) V-Belt can be dangerous by not disengaging completely.
  • Page 19 Model 998Q Ref. Part No. Description Ref. Part No. Description 647-04014 Control Handle 736-0270 Bell Washer.265 ID x.75 OD 731-0904A Upper Control Housing 710-0751 Hex Cap Screw 1/4-20 x.620 16864 6 Spd. Rack Cable Bracket 737-3000 Grease Fitting 731-0620 Control Lever 736-0931 Flat Washer.203 ID x.403 OD 713-0397...
  • Page 20 Model 998Q...
  • Page 21 Model 998Q Ref. Ref. Part No. Part Description Part No. Part Description 720-0223 Grip 712-0896 Hex Jam Nut 1/4-28 732-0803A Spring Lever 782-7598 Belt Keeper 738-0529 Shoulder Nut.825 x.165 Lg. 741-0124 Bearing 710-0751 Cap Screw 1/4-20 x.620 732-0849A Extension Spring 736-0270 Bell Washer.285 ID x.75 OD 750-1050...
  • Page 22 NOTES...
  • Page 23 NOTES...

  • Page 24: Warranty

    MANUFACTURER’S LIMITED WARRANTY FOR: The limited warranty set forth below is given by Troy-Bilt LLC Troy-Bilt does not extend any warranty for products with respect to new merchandise purchased and used in the sold or exported outside of the United States, its United States, its possessions and territories.

This manual is also suitable for:

998q

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