6

Trouble

Shooting

For repairs beyond the minor adjust- ments listed here, contact an authorized service dealer.

Problem

 

Cause

 

Remedy

 

 

 

 

 

Engine fails to start

1.

Blade control handle disengaged.

1.

Engage blade control handle.

 

2.

Spark plug wire disconnected.

2.

Connect wire to spark plug.

 

3.

Fuel tank empty or stale fuel.

3.

Fill tank with clean, fresh gasoline.

 

4.

Engine not primed.

4.

Refer to engine manual.

 

5.

Faulty spark plug.

5.

Clean, adjust gap, or replace.

 

6.

Blocked fuel line.

6.

Clean fuel line.

 

7.

Engine flooding.

7.

Wait a few minutes to restart, but do not

 

 

 

 

prime.

 

 

 

 

 

Engine runs erratic

1.

Spark plug wire loose.

1.

Connect and tighten spark

 

 

 

 

plug wire.

 

2.

Blocked fuel line or stale fuel.

2.

Clean fuel line; fill tank with clean, fresh

 

 

 

 

gasoline.

 

3.

Gas cap vent plugged.

3.

Clear vent.

 

4.

Water or dirt in fuel system.

4.

Drain fuel tank and carburetor. Refill with

 

 

 

 

fresh fuel.

 

5.

Dirty air cleaner.

5.

Refer to engine manual.

 

6.

Carburetor out of adjustment.

6.

Refer to engine manual.

 

 

 

 

 

Engine overheats

1.

Engine oil level low.

1.

Fill crankcase with proper oil.

 

2.

Dirty air filter.

2.

Refer to the engine manual packed with

 

 

 

 

your unit.

 

3.

Air flow restricted.

3.

Remove blower housing and clean.

 

4.

Carburetor not adjusted properly.

4.

Refer to engine manual.

 

 

 

 

 

Occasional skip

1.

Spark plug gap too close.

1.

Adjust gap to .030”. Refer to engine

(hesitates) at high speed

 

 

 

manual.

 

2.

Carburetor idle mixture adjustment

2.

Refer to engine manual.

 

 

improperly set.

 

 

 

 

 

 

 

Idles poorly

1.

Spark plug fouled, faulty or gap too

1.

Reset gap to .030” or replace spark plug.

 

 

wide.

 

Refer to engine manual.

 

2.

Carburetor improperly adjusted.

2.

Refer to engine manual.

 

3.

Dirty air cleaner.

3.

Refer to engine manual.

 

 

 

 

 

Excessive vibration

1.

Cutting Blade loose or unbalanced.

1.

Tighten blade and adapter. Balance blade

 

2.

Bent cutting blade.

2.

Replace blade.

 

 

 

 

 

Mower will not mulch

1.

Wet grass.

1.

Do not mow when grass is wet;

grass

 

 

 

wait until later to cut.

 

2.

Excessive high grass.

2.

Mow once at a high cutting height, then

 

 

 

 

mow again at desired height or make a

 

 

 

 

narrower cutting path.

 

3.

Dull blade.

3.

Sharpen or replace blade.

 

 

 

 

 

Uneven cut

1.

Wheels not positioned correctly.

1.

Place all four wheels in same height

 

 

 

 

position.

 

2.

Dull blade.

2.

Sharpen or replace blade.

 

 

 

 

 

12

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MTD Series 400 warranty Trouble Shooting, Problem Cause Remedy
Page 11 Page 13

Series 400 specifications

The MTD Series 400 is a cutting-edge line of equipment designed specifically for efficiency and versatility in outdoor maintenance. With design enhancements tailored for both residential and commercial users, the Series 400 stands out in its category thanks to its robust construction, user-friendly controls, and advanced technology.

One of the main features of the MTD Series 400 is its powerful engine. Equipped with an efficient four-stroke engine, it delivers exceptional performance while maintaining low emissions, making it environmentally friendly. This engine also ensures reliable operation across various terrains, from flat lawns to hilly regions, providing users with the confidence to tackle any outdoor task.

Another notable characteristic is the ergonomic design. The Series 400 incorporates adjustable handlebars and cushioned grips that promote comfort for extended use. This design consideration reduces fatigue and enhances user control, making it suitable for both novice and experienced users alike.

The Series 400 incorporates several advanced technologies that set it apart from competitors. For instance, its intuitive control panel simplifies operation, allowing users to easily switch between different settings without confusion. Moreover, the inclusion of a quick-start feature means users can get to work without unnecessary delays, enhancing overall productivity.

Durability is a hallmark of the MTD Series 400, with high-quality materials used throughout its construction. Reinforced components and weather-resistant finishes ensure that the equipment can withstand the rigors of outdoor use, thus extending its lifespan significantly.

One of the standout technologies in the Series 400 is its cutting system, which is optimized for precision and performance. This system allows for adjustable height settings, enabling users to achieve the desired grass length while promoting healthy lawn growth. This adaptability is crucial for meeting diverse gardening needs.

Additionally, the MTD Series 400 is designed with maintenance in mind. Its accessible components make routine checks and servicing straightforward, which is critical for ensuring long-term functionality and reliability.

In summary, the MTD Series 400 combines powerful performance, ergonomic design, advanced technology, and durability to meet the needs of outdoor maintenance. Whether for residential gardens or commercial landscapes, the Series 400 equips users with the tools needed to achieve optimal results efficiently and effectively.
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