Ariens A19A42 Operator's Manual
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Ariens A19A42 Operator's Manual

42 automatic tractor
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AUTOMATIC TRACTOR
Operator Manual
Models
A19A42 42" Automatic Tractor
Gasoline containing up to 10% ethanol (E10) or up to 10% MTBE (methyl tertiary butyl
ether) is acceptable for use in this machine. The use of any gasoline exceeding 10%
ethanol (E10) or 10% MTBE will void the product warranty.
ENGLISH
583 84 80-24 (21548319) 12.04.12
Printed in the U.S.A.

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LJ German
July 26, 2025

how to adjust brake

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LJ German
July 26, 2025

@LJ German No brakes

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Summary of Contents for Ariens A19A42

  • Page 1 AUTOMATIC TRACTOR Operator Manual Models A19A42 42" Automatic Tractor Gasoline containing up to 10% ethanol (E10) or up to 10% MTBE (methyl tertiary butyl ether) is acceptable for use in this machine. The use of any gasoline exceeding 10% ethanol (E10) or 10% MTBE will void the product warranty.

  • Page 2: Safety Rules

    SAFETY RULES Safe Operation Practices for Ride-On Mowers DANGER: THIS CUTTING MACHINE IS CAPABLE OF AMPUTATING HANDS AND FEET AND THROW ING OBJECTS. FAILURE TO OBSERVE THE FOLLOWING SAFETY INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR DEATH. • Never leave a running machine unattended. Always turn WARNING: In order to prevent ac ci den tal off blades, set parking brake, stop engine, and remove starting when setting up, trans port ing,...
  • Page 3 SAFETY RULES Safe Operation Practices for Ride-On Mowers III. CHILDREN • If fuel is spilled on clothing, change clothing immediately. • Never overfill fuel tank. Replace gas cap and tighten securely. WARNING. CHILDREN CAN BE INJURED BY THIS EQUIPMENT. The American Academy GENERAL SERVICE of Pediatrics recommends that children be a •...

  • Page 4: Table Of Contents

    PRODUCT SPECIFICATIONS CONGRATULATIONS on your purchase of a new tractor. It has been designed, engineered and manu fac tured to give you the best possible dependability and performance. Gasoline Capacity 2.5 Gallons (9.46 L) and type: Unleaded Reqular Should you experience any problem you cannot easily remedy, please contact your nearest authorized service Oil Type: SAE 10W30 (above 32°F/0°C)

  • Page 5: Assembly

    UNASSEMBLED PARTS Slope Sheet Keys Oil Drain Extension (1) Quick Connect Key(s) ASSEMBLY Your new tractor has been assembled at the factory with the exception of those parts left unassembled for shipping purposes. TOOLS REQUIRED FOR ASSEMBLY A socket wrench set will make assembly easier. Stan dard LABEL wrench sizes are listed.
  • Page 6 ASSEMBLY ✓ NOTE: You may now roll your tractor off the skid. Follow CHECKLIST the instructions below to remove the tractor from the skid. BEFORE YOU OPERATE YOUR NEW TRAC TOR, WE WARNING: Before start ing, read, un der stand and fol- WISH TO ENSURE THAT YOU RECEIVE THE BEST low all in struc tions in the Op er a tion section of this man u al.

  • Page 7: Operation

    OPERATION These symbols may appear on your tractor or in literature supplied with the product. Learn and understand their meaning. FAST SLOW REVERSE HIGH NEUTRAL CHOKE IGNITION SWITCH ENGINE START MOWER HEIGHT MOWER LIFT REVERSE ENGINE ON PARKING BRAKE ENGINE OFF OPERATION SYSTEM (ROS) CLUTCH/BRAKE...
  • Page 8 OPERATION KNOW YOUR TRACTOR READ THIS OPERATOR'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR TRACTOR Compare the illustrations with your tractor to familiarize yourself with the locations of various controls and ad just ments. Save this manual for future reference. Fig.
  • Page 9 OPERATION The operation of any tractor can result in foreign objects thrown into the eyes, which can result in severe eye dam age. Always wear safety glass es or eye shields while operating your tractor or per form ing any ad just ments or repairs. We rec om mend standard safety glasses or a wide vision safety mask worn over spectacles.
  • Page 10 OPERATION TO ADJUST GAUGE WHEELS (See Fig. 9) TO USE CRUISE CONTROL (J) (See Fig. 7) Gauge wheels are prop er ly ad just ed when they are slight ly The cruise control feature can be used for forward travel off the ground when mower is at the desired cutting height only.
  • Page 11 OPERATION REVERSE OPERATION SYSTEM (ROS) (See TO TRANSPORT (See Fig. 3 & 12) Fig. 11) When push ing or tow ing your trac tor, ensure transmission Your tractor is equipped with a Reverse Operation System is disengaged by placing freewheel control in free wheel ing (ROS).
  • Page 12 OPERATION TO START ENGINE (See Fig. 3) BEFORE STARTING THE ENGINE When starting the engine for the first time or if the engine has run out of fuel, it will take extra cranking time to move CHECK ENGINE OIL LEVEL fuel from the tank to the engine.
  • Page 13 OPERATION MOWING TIPS • Tire chains cannot be used when the mower hous ing is attached to tractor. • Mower should be properly leveled for best mowing performance. See “TO LEVEL MOWER HOUSING” in the Service and Adjustments section of this manual. •...

  • Page 14: Maintenance Schedule

    MAINTENANCE BEFORE EVERY EVERY EVERY EVERY EVERY BEFORE MAINTENANCE EACH SEASON STORAGE SCHEDULE HOURS HOURS HOURS HOURS Check Brake Operation Check Tire Pressure Check Operator Presence & ROS Systems Check for Loose Fasteners Check/Replace Mower Blades Lubrication Chart Check Battery Level Clean Battery and Terminals Clean Debris Off Steering Plate Check Mower Levelness...

  • Page 15: Maintenance

    MAINTENANCE TRACTOR BLADE CARE For best results mower blades must be kept sharp. Re place Always observe safety rules when per form ing any bent or damaged blades. main te nance. CAUTION: Use only a replacement blade ap- BRAKE OPERATION proved by the manufacturer of your tractor.
  • Page 16 MAINTENANCE • Slide oil drain extension under oil drain hole (drain hole V-BELTS may be flush with or protrude from engine block side wall). Check V-belts for deterioration and wear after 100 hours • Ensure back face of oil drain extension is flush with of operation and replace if necessary.
  • Page 17 MAINTENANCE IN-LINE FUEL FILTER (See Fig. 18) DECK WASHOUT PORT (See Fig. 20) The fuel filter should be replaced once each season. If fuel Your tractor’s deck is equipped with a washout port on filter becomes clogged, ob struct ing fuel flow to car bu re tor, its surface as part of its deck wash system.

  • Page 18: Service And Adjustments

    SERVICE AND ADJUSTMENTS WARNING: TO AVOID SERIOUS INJURY, BEFORE PERFORMING ANY SER VICE OR AD JUST MENTS: • Depress brake pedal fully and set parking brake. • Place attachment clutch in “DISENGAGED” position. • Turn ignition key to “STOP” and remove key. •...
  • Page 19 SERVICE AND ADJUSTMENTS • ATTACH MOWER SIDE SUSPENSION ARMS (A) TO • Insert end of link (E) into hole in front mower bracket CHASSIS - Position hole in arm over pin (B) on outside and secure with washer and retainer spring (J). of tractor chassis and secure with retainer spring.
  • Page 20 SERVICE AND ADJUSTMENTS TO LEVEL MOWER • If adjustment is necessary, see step in Visual Adjust- ment instructions above. Ensure tires are properly inflated to the PSI shown on tires. • Recheck measurements, adjust if necessary until both If tires are over or under inflated, it may affect the appear- sides are equal.
  • Page 21 SERVICE AND ADJUSTMENTS TO REPLACE MOTION DRIVE BELT TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 31) (See Fig. 32) Park the tractor on level surface. En gage parking brake. The mower blade drive belt may be replaced without tools. For as sis tance, there is a belt installation guide decal on Park the tractor on level surface.
  • Page 22 SERVICE AND ADJUSTMENTS TO REMOVE WHEEL (See Fig. 33) TO REMOVE CABLES, REVERSE ORDER - • BLACK cable first from chassis and then from the fully • Block up axle securely. charged battery. • Remove axle cover, retaining ring and washers to allow •...
  • Page 23 SERVICE AND ADJUSTMENTS TO REPLACE HEADLIGHT BULB ENGINE • Raise hood. TO AD JUST THROTTLE CON TROL CABLE • Pull bulb holder out of the hole in the backside of the grill. • Replace bulb in holder and push bulb holder securely The throttle control has been preset at the factory and back into the hole in the backside of the grill.

  • Page 24: Storage

    STORAGE Immediately prepare your tractor for storage at the end ENGINE of the season or if the tractor will not be used for 30 days or more. FUEL SYSTEM IMPORTANT: IT IS IMPORTANT TO PREVENT GUM DEPOSITS WARNING: Never store the trac tor with FROM FORMING IN ES SEN TIAL FUEL SYSTEM PARTS SUCH gas o line in the tank inside a building AS CARBURETOR, FUEL FIL TER, FUEL HOSE, OR TANK...

  • Page 25: Troubleshooting

    TROUBLESHOOTING PROBLEM CAUSE CORRECTION 1. Out of fuel. 1. Fill fuel tank. Will not start 2. Engine not “CHOKED” properly. 2. See “TO START ENGINE” in Operation section. 3. Engine flooded. 3. Wait several minutes before attempting to start. 4. Bad spark plug. 4.
  • Page 26 TROUBLESHOOTING PROBLEM CAUSE CORRECTION Engine continues 1. Faulty operator-safety presence control 1. Check wiring, switches and connections. If not system. corrected, contact an authorized service center/ to run when oper- department. ator leaves seat with attachment clutch engaged 1. Worn, bent or loose blade. 1.

  • Page 27: Warranty

    In the event you have a claim under this Warranty, you must return the product to an authorized service dealer. Should you have any unanswered questions concerning this Warranty, please contact: Ariens 655 W. Ryan Street Brillion, WI 54110 1-877-257-6920 www.ariens.com...
  • Page 29 NOTES...
  • Page 30 Ariens Company 655 West Ryan Street Brillion, WI 54110-1072 1-877-257-6920 www.ariens.com WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

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