TROUBLESHOOTING POINTS

 

PROBLEM

CAUSE

CORRECTION

 

Engine continues

1.

Faulty operator-safety presence control

1.

Check wiring, switches and connections. If not

 

to run when oper-

 

system.

 

corrected, contact an authorized service center/

 

ator leaves seat

 

 

 

department.

 

 

 

 

 

 

 

with attachment

 

 

 

 

 

 

clutch engaged

 

 

 

 

 

 

 

 

 

 

 

 

 

Poor cut - uneven

1.

Worn, bent or loose blade.

1.

Replace blade. Tighten blade bolt.

 

 

 

2.

Mower deck not level.

2.

Level mower deck.

 

 

3.

Buildup of grass, leaves, trash under mower.

3.

Clean underside of mower housing.

 

 

4.

Bent blade mandrel.

4.

Replace blade mandrel.

 

 

5.

Clogged mower deck vent holes from

5.

Clean around mandrels to open vent holes.

 

 

 

buildup of grass, leaves, and trash around

 

 

 

 

 

 

mandrels.

 

 

 

 

Mower blades will

1.

Obstruction in clutch mechanism.

1.

Remove obstruction.

 

 

not rotate

2.

Worn/damaged mower drive belt.

2.

Replace mower drive belt.

 

 

3.

Frozen idler pulley.

3.

Replace idler pulley.

 

 

4.

Frozen blade mandrel.

4.

Replace blade mandrel.

 

 

 

 

 

 

 

 

Poor grass

1.

Engine speed too slow.

1.

Place throttle control in “FAST” position.

 

 

discharge

2.

Travel speed too fast.

2.

Shift to slower speed.

 

 

3.

Wet grass.

3.

Allow grass to dry before mowing.

 

 

4.

Mower deck not level.

4.

Level mower deck.

 

 

5.

Low/uneven tire air pressure.

5.

Check tires for proper air pressure.

 

 

6.

Worn, bent or loose blade.

6.

Replace blade. Tighten blade bolt.

 

 

7.

Buildup of grass, leaves, trash under mower.

7.

Clean underside of mower housing.

 

 

8.

Mower drive belt worn.

8.

Replace mower drive belt.

 

 

9.

Blades improperly installed.

9.

Reinstall blades sharp edge down.

 

 

10.

Improper blades used.

10.

Replace with blades listed in parts manual.

 

 

11.

Clogged mower deck vent holes from buildup

11.

Clean around mandrels to open vent holes.

 

 

 

of grass, leaves, trash around mandrels.

 

 

 

 

Headlight(s) not

1.

Switch is “OFF”.

1.

Turn switch “ON”.

 

 

working

2.

Bulb(s) or lamp(s) burned out.

2.

Replace bulb(s) or lamp(s).

 

(if so equipped)

3.

Faulty light switch.

3.

Check/replace light switch.

 

 

4.

Loose or damaged wiring.

4.

Check wiring and connections.

 

 

5.

Blown fuse.

5.

Replace fuse.

 

 

 

 

 

 

 

 

Battery will not

1.

Bad battery cell(s).

1.

Replace battery.

 

 

charge

2.

Poor cable connections.

2.

Check/clean all connections.

 

 

3.

Faulty regulator (if so equipped).

3.

Replace regulator.

 

 

4.

Faulty alternator.

4.

Replace alternator.

 

 

 

 

 

 

 

 

Loss of drive

1.

Freewheel control in “disengaged” position.

1.

Place freewheel control in “engaged” position.

 

 

2.

Debris on steering plate (if equipped).

2.

See "CLEANING" in the maintenance section.

 

 

3.

Motion drive belt worn, damaged, or broken.

3.

Replace motion drive belt.

 

 

4.

Air trapped in transmission during

4.

Purge transmission.

 

 

 

shipment or servicing.

 

 

 

 

 

5.

Axle key missing.

5.

Install axle key at rear wheel. See "TO REMOVE

 

 

 

 

 

WHEEL" in the Service and Adjustments section.

 

 

 

 

 

 

 

 

Engine "back-

1.

Engine throttle control not set between

1.

Move throttle control between half and full speed

 

 

fires” when turn-

 

half and full speed (fast) position before

 

(fast) position before stopping engine.

 

 

stopping engine.

 

 

 

 

ing engine “OFF”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engine dies when

1.

Reverse operation system (ROS) is not "ON"

1.

Turn ignition key to ROS "ON" position. See

 

 

tractor is shifted

 

while mower or other attachment is engaged.

 

Operation section.

 

into reverse

 

 

 

 

 

26

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Husqvarna YTH21K46, 96045002100 owner manual Engine continues
Page 25 Page 27

96045002100, YTH21K46 specifications

The Husqvarna YTH21K46 is a robust and efficient riding mower, designed for homeowners who demand reliability, performance, and ease of use in maintaining their lawns. Powered by a strong 21.5 HP Kohler engine, this riding mower provides ample power to tackle various mowing conditions while ensuring durability and long-lasting performance.

One of the standout features of the YTH21K46 is its 46-inch cutting deck. This deck allows for efficient mowing of medium to large-sized lawns, covering more ground in fewer passes. The cutting height can be easily adjusted via a rugged lever, offering six different positions ranging from 1 to 4 inches. This versatility enables users to achieve the desired lawn appearance while accommodating different grass types and seasonal conditions.

An important technological feature included in this model is the ReadyStart system, which allows for easy engine start-up without the need to prime, enhancing user convenience. This, combined with the smooth hydrostatic transmission, provides seamless acceleration and deceleration, making it simple to navigate around obstacles and tight spaces. The steering wheel is ergonomically designed, ensuring comfort and ease of control during operation.

The Husqvarna YTH21K46 also boasts a comfortable and spacious operator's platform, which includes an adjustable seat to accommodate different user heights, promoting an enjoyable mowing experience. The optimized design creates an ideal driving position, reducing fatigue during extended use. Moreover, a front-mounted bumper adds protection and enhances the thermal efficiency of the mower.

In addition to its cutting capabilities, this riding mower is designed with functionality in mind. The integrated LED headlights improve visibility during early morning or late evening mowing sessions. A washout port makes it easy to clean the cutting deck, ensuring optimal performance and longevity.

Lastly, the YTH21K46 supports various attachments and accessories, including mulching kits, baggers, and snow blades, expanding its versatility for year-round lawn care. This adaptability means it's not just a seasonal mower; it serves as a multifunctional tool to help maintain your property in every season.

With its blend of powerful performance, user-friendly design, and smart technologies, the Husqvarna YTH21K46 provides homeowners a reliable solution for achieving a well-manicured lawn.
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