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

1.

Faulty operator-safety presence control system.

1.

Check wiring, switches and connections. If not

run when operator

 

 

 

corrected, contact an authorized service center/

leaves seat with

 

 

 

department.

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, 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 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

1.

Light switch is “OFF”.

1.

Turn light 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 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”

1.

Engine throttle control not set between half and

1. Move throttle control between half and full speed

when turning

 

full speed (fast) position before stopping engine.

 

(fast) position before stopping engine.

engine “OFF”

 

 

 

 

 

 

 

 

 

28

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Image 28
Poulan 404973 manual Engine dies when
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404973 specifications

The Poulan 404973 is a powerful and versatile chainsaw designed for both amateur and professional users who require reliable performance for various cutting tasks. Known for its robust build and user-friendly features, the 404973 has become a favored choice among homeowners and landscapers alike.

One of the standout features of the Poulan 404973 is its engine. Powered by a 42cc, two-stroke engine, this chainsaw offers a commendable balance of power and efficiency. This engine delivers ample torque for cutting through dense wood, making it suitable for felling trees, pruning branches, and cutting firewood. The inclusion of a primer bulb allows for quick starts, reducing user frustration during the initial ignition phase.

The design of the Poulan 404973 emphasizes user comfort and control. It is equipped with an ergonomic handle that minimizes vibrations, allowing for extended use without excessive fatigue. Additionally, the chainsaw features a lightweight construction, which further enhances portability and ease of handling. This combination of comfort and control helps users maintain precision during their cutting tasks.

Safety is a key consideration in the design of the Poulan 404973. It comes equipped with a chain brake that protects users from kickback incidents, a common hazard in chainsaw operation. This feature automatically stops the chain in the event of sudden movements or loss of control. Moreover, the chainsaw also includes a safety throttle lock, ensuring that the chain does not operate unexpectedly while starting.

Another impressive aspect of the Poulan 404973 is its automatic oiling system. This technology ensures that the chain remains well-lubricated during use, reducing friction and prolonging the lifespan of both the chain and the guide bar. The oil reservoir is transparent, allowing users to monitor oil levels easily and prevent any interruptions during operation.

Lastly, maintaining the chainsaw is a straightforward process, thanks to features like tool-less chain adjustment and easy access to the air filter. This design simplifies upkeep, enabling users to keep their equipment in optimal condition without requiring extensive technical knowledge.

Overall, the Poulan 404973 stands out as a reliable and functional chainsaw with a blend of power, safety, and user-friendly features that cater to a wide range of cutting needs. Whether for domestic or light commercial use, this chainsaw proves to be a valuable addition to any toolkit.
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