TROUBLESHOOTING POINTS

PROBLEM

CAUSE

CORRECTION

 

Will not start

1.

Out of fuel.

1.

Fill fuel tank.

 

 

 

2.

Engine not “CHOKED” properly.

2.

See “TO START ENGINE” in Operation section.

 

 

 

3.

Engine flooded.

3.

Wait several minutes before attempting to start.

 

 

 

4.

Bad spark plug.

4.

Replace spark plug.

 

 

 

5.

Weak or dead battery.

5.

Recharge or replace battery.

 

 

 

6.

Dirty air filter.

6.

Clean/replace air filter.

 

 

 

7.

Dirty fuel fi lter.

7.

Replace fuel filter.

 

 

 

8.

Water in fuel.

8.

Empty fuel tank and carburetor, refill tank with

 

 

 

 

 

 

fresh gasoline and replace fuel filter.

 

 

 

9.

Loose or damaged wiring.

9.

Check all wiring.

 

 

 

10.

Carburetor out of adjustment.

10.

See “To Adjust Carburetor” in Service Adjust

 

 

 

 

 

 

ments section.

 

 

 

11.

Engine valves out of adjustment.

11.

Contact an authorized service center/

 

 

 

 

 

 

department.

 

 

 

 

 

 

 

 

Hard to start

1.

Dirty air filter.

1.

Clean/replace air filter.

 

 

 

2.

Bad spark plug.

2.

Replace spark plug.

 

 

 

3.

Weak or dead battery.

3.

Recharge or replace battery.

 

 

 

4.

Dirty fuel fi lter.

4.

Replace fuel filter.

 

 

 

5.

Stale or dirty fuel.

5.

Empty fuel tank and refill tank with fresh, clean

 

 

 

 

 

 

gasoline.

 

 

 

6.

Loose or damaged wiring.

6.

Check all wiring.

 

 

 

7.

Carburetor out of adjustment.

7.

See “To Adjust Carburetor” in Service Adjust

 

 

 

 

 

 

ments section.

 

 

 

8.

Engine valves out of adjustment.

8.

Contact an authorized service center/

 

 

 

 

 

 

department.

 

 

 

 

 

 

 

 

Engine will not

1.

Brake pedal not depressed.

1.

Depress brake pedal.

 

turn over

2.

Attachment clutch is engaged.

2.

Disengage attachment clutch.

 

 

 

3.

Weak or dead battery.

3.

Recharge or replace battery.

 

 

 

4.

Blown fuse.

4.

Replace fuse.

 

 

 

5.

Corroded battery terminals.

5.

Clean battery terminals.

 

 

 

6.

Loose or damaged wiring.

6.

Check all wiring.

 

 

 

7.

Faulty ignition switch.

7.

Check/replace ignition switch.

 

 

 

8.

Faulty solenoid or starter.

8.

Check/replace solenoid or starter.

 

 

 

9.

Faulty operator presence switch(es).

9.

Contact an authorized service center/

 

 

 

 

 

 

department.

 

 

 

 

 

 

 

 

Engine clicks but

1.

Weak or dead battery.

1.

Recharge or replace battery.

 

will not start

2.

Corroded battery terminals.

2.

Clean battery terminals.

 

 

 

3.

Loose or damaged wiring.

3.

Check all wiring.

 

 

 

4.

Faulty solenoid or starter.

4.

Check/replace solenoid or starter.

 

 

 

 

 

 

 

 

Loss of power

1.

Cutting too much grass/too fast.

1.

Raise cutting height/reduce speed.

 

 

 

2.

Throttle in “CHOKE” position.

2.

Adjust throttle control.

 

 

 

3.

Build-up of grass, leaves and trash under mower.

3.

Clean underside of mower housing.

 

 

 

4.

Dirty air filter.

4.

Clean/replace air filter.

 

 

 

5.

Low oil level/dirty oil.

5.

Check oil level/change oil.

 

 

 

6.

Faulty spark plug.

6.

Clean and regap or change spark plug.

 

 

 

7.

Dirty fuel fi lter.

7.

Replace fuel filter.

 

 

 

8.

Stale or dirty fuel.

8.

Empty fuel tank and refill tank with fresh, clean

 

 

 

 

 

 

gasoline.

 

 

 

9.

Water in fuel.

9.

Empty fuel tank and carburetor, refill tank with

 

 

 

 

 

 

fresh gasoline and replace fuel filter.

 

 

 

10.

Spark plug wire loose.

10.

Connect and tighten spark plug wire.

 

 

 

11.

Dirty engine air screen/fins.

11.

Clean engine air screen/fins.

 

 

 

12.

Dirty/clogged muffler.

12.

Clean/replace muffl er.

 

 

 

13.

Loose or damaged wiring.

13.

Check all wiring.

 

 

 

14.

Carburetor out of adjustment.

14.

See “To Adjust Carburetor” in Service Adjust

 

 

 

 

 

 

ments section.

 

 

 

15.

Engine valves out of adjustment.

15.

Contact an authorized service center/

 

 

 

 

 

 

department.

 

 

 

 

 

 

 

 

Excessive vibration

1.

Worn, bent or loose blade.

1.

Replace blade. Tighten blade bolt.

 

 

 

2.

Bent blade mandrel.

2.

Replace blade mandrel.

 

 

 

3.

Loose/damaged part(s).

3.

Tighten loose part(s). Replace damaged parts.

 

 

 

 

 

 

 

 

27

Page 26 Page 28
Page 27
Image 27
Poulan 404973 manual Troubleshooting Points
Page 26 Page 28

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.
Top Page Image Contents