TROUBLESHOOTING POINTS

PROBLEM

CAUSE

CORRECTION

 

 

 

 

 

Engine dies when

1.

Reverse operation system

1.

Turn ignition key to

tractor is shifted

 

(ROS) is not "ON" while

 

ROS "ON" position.

into reverse

 

mower or other attachment

 

See Operation section.

 

 

is engaged.

 

 

 

 

 

 

 

Engine continues to run

1.

Faulty operator-safety presence control system.

1.

Check wiring, switches and connections. If not

when operator leaves seat

 

 

 

corrected, contact an authorized service center/

with attachment clutch

 

 

 

department.

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, and trash under mower.

3.

Clean underside of mower housing.

 

4.

Bent blade mandrel.

4.

Replace blade mandrel.

 

5.

Clogged mower deck vent holes from buildup of

5.

Clean around mandrels to open vent holes.

 

 

grass, leaves, and trash around mandrels.

 

 

 

 

 

 

 

Mower blades will not

1.

Obstruction in clutch mechanism.

1.

Remove obstruction.

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 discharge

1.

Engine speed too slow.

1.

Place throttle control in “FAST” position.

 

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/sharpen blade. Tighten blade bolt.

 

7.

Buildup of grass, leaves and 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 this manual.

 

11.

Clogged mower deck vent holes from buildup of

11.

Clean around mandrels to open vent holes.

 

 

grass, leaves, and trash around mandrels.

 

 

 

 

 

 

 

Headlight(s) not working

1.

Light switch is “OFF”.

1.

Turn light switch “ON”.

(if so equipped)

2.

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

2.

Replace bulb(s) or lamp(s).

 

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 charge

1.

Bad battery cell(s).

1.

Replace battery.

 

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.

Motion drive belt worn, damaged, or broken.

2.

Replace motion drive belt.

 

3.

Air trapped in transmission during shipment

3.

Purge transmission.

 

 

or servicing.

 

 

 

 

 

 

 

Engine “backfires” when

1.

Engine throttle control not set between half and

1.

Move throttle control between half and full speed

turning engine “OFF”

 

full speed (fast) position before stopping engine.

 

(fast) position before stopping engine.

 

 

 

 

 

26

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Poulan HD21H42 manual Engine dies when
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HD21H42 specifications

The Poulan HD21H42 lawn tractor is a powerful and versatile lawn care machine, designed to meet the needs of homeowners with medium to large-sized lawns. This tractor is equipped with a robust 21 horsepower Briggs & Stratton engine, providing the ideal balance between power and efficiency. Its reliable engine ensures smooth operation while delivering ample torque for tackling various terrains and grass conditions.

One of the standout features of the HD21H42 is its 42-inch cutting deck, which allows for efficient mowing of larger areas. The deck is designed with a durable steel construction, ensuring longevity and resistance to wear and tear. The cutting height is adjustable, offering a range of settings that cater to different grass types and seasonal growth patterns. This adaptability is crucial for achieving a perfectly manicured lawn.

The Poulan HD21H42 also incorporates an advanced hydrostatic transmission system. This technology allows for an effortless driving experience, offering infinite speed control without the need for shifting gears. Users can easily maneuver around obstacles and navigate tight spaces with confidence, significantly enhancing the tractor's usability.

Comfort is another key characteristic of the Poulan HD21H42. The tractor features an ergonomic seat that provides support during long mowing sessions, along with a high backrest for added comfort. The straightforward control panel simplifies operation, enabling users to focus on their mowing tasks without confusion. Additionally, the tractor's tight turning radius helps in making sharp turns, reducing the need for manual adjustments.

Maintenance is straightforward with the HD21H42, as its removable cutting deck makes it easy to access and clean. Regular maintenance routines contribute to prolonging the lifespan of the machine and ensuring consistent performance over time.

Moreover, the Poulan HD21H42 offers enhanced versatility with optional attachments such as mulching kits, baggers, and snow plows. This allows homeowners to extend the utility of their lawn tractor throughout different seasons, adapting it to varied tasks beyond just mowing.

In conclusion, the Poulan HD21H42 lawn tractor combines power, ease of use, and adaptability, making it an excellent choice for homeowners seeking a reliable lawn maintenance solution. Its advanced features and thoughtful design ensure that mowing the lawn is not only an obligation but a satisfying and efficient task.
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