Husqvarna YTH20F42T Replacing Battery See Fig, To Start Engine with a Weak Battery See Fig

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SERVICE AND ADJUSTMENTS

Replace washers and snap retaining ring securely in axle groove.

Replace axle cover.

NOTE: To seal tire punctures and prevent flat tires due to slow leaks, tire sealant may be purchased from your local parts dealer. Tire sealant also prevents tire dry rot and corrosion.

WASHERS

RETAINING

RING

AXLE COVER

SQUARE KEY (REAR

WHEEL ONLY)

FIG. 28

REPLACING BATTERY (See Fig. 30)

WARNING: Do not short battery terminals by allowing a wrench or any other object to contact both terminals at the same time. Before connecting battery, remove metal bracelets, wristwatch bands, rings, etc.

Positive terminal must be connected first to prevent spark- ing from accidental grounding.

Lift hood to raised position.

Disconnect BLACK battery cable (A) then RED battery cable and carefully remove battery from tractor.

Install new battery with terminals in same position as old battery.

First connect RED battery cable (B) to positive (+) battery terminal with hex bolt and keps nut as shown. Tighten securely. Slide terminal cover (C) over terminal.

Connect BLACK grounding cable to negative (-) battery terminal with remaining hex bolt and keps nut. Tighten securely

Close hood.

TO START ENGINE WITH A WEAK BATTERY (See Fig. 29)

WARNING: Lead-acid batteries gen- erate explosive gases. Keep sparks, flame and smoking materials away from batteries. Always wear eye protection when around batteries.

If your battery is too weak to start the engine, it should be recharged. (See "BATTERY" in the MAINTENANCE sec- tion of this manual).

If “jumper cables” are used for emergency starting, follow this procedure:

C

Positive B (Red) Cable

ANegative (Black) Cable

IMPORTANT: YOUR TRACTOR IS EQUIPPED WITH A 12 VOLT SYSTEM. THE OTHER VEHICLE MUST ALSO BE A 12 VOLT SYSTEM. DO NOT USE YOUR TRACTOR BATTERY TO START OTHER VEHICLES.

TO ATTACH JUMPER CABLES -

Connect one end of the RED cable to the POSITIVE

(+)terminal of each battery(A-B), taking care not to short against tractor chassis.

Connect one end of the BLACK cable to the NEGATIVE (-) terminal (C) of fully charged battery.

Connect the other end of the BLACK cable (D) to good chassis ground, away from fuel tank and battery.

TO REMOVE CABLES, REVERSE ORDER -

BLACK cable first from chassis and then from the fully charged battery.

RED cable last from both batteries.

WEAK OR DEAD

FULLY CHARGED

BATTERY

BATTERY

02954

FIG. 30

TO REPLACE HEADLIGHT BULB

Raise hood.

Pull bulb holder out of the hole in the backside of the grill.

Replace bulb in holder and push bulb holder securely back into the hole in the backside of the grill.

Close hood.

INTERLOCKS AND RELAYS

Loose or damaged wiring may cause your tractor to run poorly, stop running, or prevent it from starting.

Check wiring. See electrical wiring diagram in the Repair Parts section.

TO REPLACE FUSE

Replace with 20 amp automotive-type plug-in fuse. The fuse holder is located behind the dash.

FIG. 29

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Contents YTH20F42T General Operation Safety RulesSafe Operation Practices for Ride-On Mowers II. Slope OperationIII. Children ServiceIV. Towing Table of Contents To Remove Tractor from Carton AssemblyUnassembled Parts Unpack CartonCheck for Proper Position of ALL Belts Check Tire PressureCheck Deck Levelness Check Brake SystemOperation Know Your Tractor Reverse Operation System ROS on PositionStopping HOW to USE Your TractorTo SET Parking BRAKESee Fig To USE Throttle Control D See FigTo USE Cruise Control -J See Fig To Adjust Mower Cutting Height See FigTo Adjust Gauge Wheels See Fig To Operate MowerTo Operate on Hills Service REMINDER/HOUR MeterBefore Starting the Engine To Transport See FigsPurge Transmission ADD GasolineTo Start Engine See Fig Automatic Transmission Warm UPMowing Tips Maintenance Before Each USEBrake Operation BatteryTractor TiresEngine Muffler CleaningEngine OIL Filter Spark PlugsTo Install Mower See Figs Service and AdjustmentsTo Remove Mower See Fig To Level Mower To Replace Mower Drive Belt See Fig Mower Drive Belt InstallationMower Drive Belt Removal Front Wheel TOE-IN/CAMBER To Replace Motion Drive Belt See FigTo Check Brake To Remove Wheel for Repairs See FigTo Replace Headlight Bulb Replacing Battery See FigTo Start Engine with a Weak Battery See Fig Interlocks and RelaysTo Adjust Choke Control To Remove Hood and Grill Assembly See FigTo Adjust Throttle Control Cable To Adjust CarburetorFuel System StorageOther Engine OILTroubleshooting Points Engine dies when Schematic Tractor Model NO. YTH20F42T 96043000500, Product no 43Electrical KEY Part NO. NO. Description Chassis KEY Part Description Drive KEY Part NO. NO. Description Steering Assembly Tractor Model NO. YTH20F42T 96043000500, Product no 43 Seat Assembly Decals Wheels and TiresEngine KEY Part NO. NO. Description Mower Deck KEY Part Description Mower Lift Suggested Guide for Sighting Slopes for Safe Operation Only Ride UP and Down Hill Not Across Hill Degrees MAXWarranty Statement

YTH20F42T specifications

The Husqvarna YTH20F42T is a versatile and efficient riding lawn mower designed to meet the demands of residential lawn care. With its robust construction and user-friendly features, this model has gained popularity among homeowners looking for a reliable mowing solution.

At the heart of the YTH20F42T is a powerful 20 horsepower Kohler engine, providing ample power to tackle various terrain types. This engine not only ensures efficient mowing but also enhances overall durability and longevity. The automatic hydrostatic transmission allows for seamless speed adjustments and smooth transitions, making it easy to navigate around obstacles and varying landscape features.

One standout feature of the Husqvarna YTH20F42T is its 42-inch cutting deck, which strikes an ideal balance between maneuverability and cutting capacity. This deck size allows users to cover more ground in less time, making it suitable for medium to large-sized yards. The cutting height can be easily adjusted from 1.5 to 4 inches, giving users the flexibility to achieve their desired lawn appearance.

The mower is equipped with a washout port, facilitating quick and simple cleaning of the cutting deck. This feature enhances the mower’s maintenance routine, ensuring it operates efficiently and prolonging the life of the blades. Additionally, the mulching capability allows for nutrient recycling, promoting a healthier lawn while reducing the need for bagging grass clippings.

Comfort is not overlooked in the design of the YTH20F42T. It features an ergonomic seat with good back support, designed to keep users comfortable even during extended mowing sessions. The steering wheel is also positioned for easy access and control, enhancing the overall user experience.

Safety features, such as the automatic shutoff when the operator leaves the seat, provide peace of mind while operating the mower. The headlights ensure visibility during early morning or late evening mowing, making this mower a reliable choice any time of day.

In summary, the Husqvarna YTH20F42T combines power, efficiency, and comfort, making it an excellent choice for homeowners looking to maintain their lawns with ease. From its reliable engine to innovative features, this riding mower stands out as a go-to solution for effective lawn care.