Husqvarna Essential Lawn Mower Maintenance: Brake Checks, Tire Care, and Control Chemicals
Page 16

MAINTENANCE

TRACTOR

Always observe safety rules when performing any main- tenance.

BRAKE OPERATION

If tractor requires more than five (5) feet to stop at highest speed in highest gear on a level, dry concrete or paved surface, then brake must be checked and adjusted. (See “TO CHECK BRAKE” in the Service and Adjustments sec- tion of this manual).

TIRES

•Maintain proper air pressure in all tires (Refer to tire specifications on sidewalls of tires).

•Keep tires free of gasoline, oil, or insect control chemi- cals which can harm rubber.

•Avoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage.

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.

OPERATOR PRESENCE SYSTEM AND REVERSE OP- ERATION SYSTEM (ROS) (See FIG. 11)

Be sure operator presence and reverse operation systems are working properly. If your tractor does not function as described, repair the problem immediately.

•The engine should not start unless the brake pedal is fully depressed, and the attachment clutch control is in the disengaged position.

CHECK OPERATOR PRESENCE SYSTEM

•When the engine is running, any attempt by the operator to leave the seat without first setting the parking brake should shut off the engine.

•When the engine is running and the attachment clutch is engaged, any attempt by the operator to leave the seat should shut off the engine.

•The attachment clutch should never operate unless the operator is in the seat.

CHECK REVERSE OPERATION (ROS) SYSTEM

•When the engine is running with the ignition switch in the engine "ON" position and the attachment clutch engaged, any attempt by the operator to shift into reverse should shut off the engine.

•When the engine is running with the ignition switch in the ROS "ON" position and the attachment clutch en- gaged, any attempt by the operator to shift into reverse should NOT shut off the engine.

ROS "ON" POSITION

ENGINE "ON" POSITION

 

(NORMAL OPERATING)

8

 

0282

 

FIG. 11

 

BLADE CARE

 

For best results mower blades must be kept sharp. Replace

 

bent or damaged blades.

16

CAUTION: Use only a replacement blade approved by the manufacturer of your tractor. Using a blade not approved by the manufacturer of your tractor is hazardous, could damage your tractor and void your warranty.

BLADE REMOVAL (See Fig. 12A)

•Raise mower to highest position to allow access to blades.

•Removebladebolt,lockwasherandflatwashersecuring blade.

•Install new or resharpened blade with trailing edge up towards deck as shown.

IMPORTANT: TO ENSURE PROPER ASSEMBLY, CENTER HOLE IN BLADE MUST ALIGN WITH STAR ON MANDREL ASSEMBLY.

•Reassemble blade bolt, lock washer and flat washer in exact order as shown.

•Tighten blade bolt securely (45-55 Ft. Lbs. torque).

IMPORTANT: BLADE BOLT IS HEAT TREATED. IF BOLT NEEDS REPLACING, REPLACE ONLY WITH APPROVE BOLT SHOWN IN THE REPAIR PARTS.

TRAILING

BLADE

MANDREL

EDGE UP

 

ASSEMBLY

 

CENTER

 

 

HOLE

 

 

 

02545

BLADE BOLT

 

STAR

 

 

FIG. 12A

TO SHARPEN BLADE (See Fig. 12B)

NOTE: We do not recommend sharpening blade - but if you do, be sure the blade is balanced.

Care should be taken to keep the blade balanced. An un- balanced blade will cause excessive vibration and eventual damage to mower and engine.

•The blade can be sharpened with a file or on a grind- ing wheel. Do not attempt to sharpen while on the mower.

•To check blade balance, you will need a 5/8" diameter steel bolt, pin, or a cone balancer. (When using a cone balancer, follow the instructions supplied with balancer.)

NOTE: Do not use a nail for balancing blade. The lobes of the center hole may appear to be centered, but are not.

•Slide blade on to an unthreaded portion of the steel bolt or pin and hold the bolt or pin parallel with the ground. If blade is balanced, it should remain in a horizontal position. If either end of the blade moves downward, sharpen the heavy end until the blade is balanced.

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Contents LTH1842TWIN Safety Rules Safe Operation Practices for Ride-On MowersGeneral Operation II. Slope OperationIII. Children ServiceIV. Towing Table of Contents Unassembled Parts Steering WheelAssembly Tools Required for AssemblyTo Remove Tractor from Carton Before Removing Tractor from SkidCheck Battery See a Install Seat See Figs a and 2bAttach Hood Scoop See b Check Tire Pressure Check Deck LevelnessCheck for Proper Position of ALL Belts Check Brake SystemOperation Know Your Tractor HOW to USE Your Tractor To Move Forward and BackwardTo Adjust Mower Cutting Height See Fig Using the Reverse Operation SystemTo Operate Mower See Fig Reverse Operation System ROSSee FigBefore Starting the Engine To Transport See FigsCheck Engine OIL Level ADD GasolinePurge Transmission Mowing TipsAutomatic Transmission Warm UP Maintenance Lubrication ChartService Dates General RecommendationsTractor Blade Removal See aTo Sharpen Blade See B Check Operator Presence SystemEngine Cleaning To Install Mower See Fig Service and AdjustmentsTo Remove Mower See Fig Service and Adjustments Belt Installation To Replace Mower Blade Drive Belt See FigTo Replace Motion Drive BELTSee FIG To Check BrakeTransmission REMOVAL/REPLACEMENT To Adjust Steering Wheel AlignmentTo Start Engine with a Weak Battery See Fig Front Wheel TOE-IN/CAMBERTo Adjust Throttle Control Cable To Adjust Choke ControlTo Adjust Carburetor To Replace Headlight BulbStorage OtherFuel System Engine OILTroubleshooting Points With attachment clutch Suggested Guide for Sighting Slopes for Safe Operation 532 41 22-42 01.19.07 AP

LTH1842 specifications

The Husqvarna LTH1842 is a reliable and efficient riding mower designed for homeowners who need a robust lawn care solution. Engineered with a focus on performance and user comfort, this model is an excellent choice for those maintaining medium to large-sized yards.

One of the standout features of the LTH1842 is its powerful 18.5 HP Briggs & Stratton engine. This engine provides ample power for a smooth cutting experience, ensuring that grass is cut evenly and effectively. Users will appreciate the automatic transmission, which allows for effortless speed adjustments and makes mowing a straightforward task, even on hilly terrain.

The cutting deck is another highlight of the Husqvarna LTH1842. With a width of 42 inches, it features a reinforced design that enhances durability. The cutting height can be adjusted to six different positions, ranging from 1 to 4 inches, giving users the flexibility to choose the perfect height for their lawn. Additionally, the fan-assisted bagger option helps collect grass clippings efficiently, promoting a cleaner mowing experience.

Ease of use is integrated throughout the design of the LTH1842. The ergonomic steering wheel and high-back seat are designed for comfort, especially during extended mowing sessions. The clear dashboard makes it simple for operators to monitor their speed and fuel levels without distraction.

Moreover, the Husqvarna LTH1842 incorporates advanced technology to enhance functionality. The ReadyStart system enables quick starts without the need for priming, ensuring that your mower is ready when you are. The mower is also compatible with a wide range of attachments, allowing it to perform additional tasks throughout different seasons, such as mulching and snow clearing.

Safety features, including an automatic shut-off mechanism when the operator leaves the seat, ensures that the user operates the machine securely. The LTH1842 also comes with a strong warranty, reflecting the manufacturer’s confidence in the machine's durability and performance.

In summary, the Husqvarna LTH1842 is a versatile riding mower that combines power, comfort, and innovative features. It is well-suited for homeowners looking for a reliable solution to maintain their lawns efficiently. With its robust engine, adjustable cutting deck, and user-friendly design, the LTH1842 delivers performance and convenience for a superior mowing experience.
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