Echo SRM-400U 用户手册

20

Improper fuel used

Use fuel with correct mixing ratio.
Never use gasoline of poor quality.

Spark plug defective (burnt)

Replace.

As cooling fins clogged, air

Clean fins.

does not pass well

Excessive deposits in

Disassemble and remove carbon.

combustion chamber

Plug damaged or fouled

Replace or clean.

Combustion poor due to

Check wiring.

defective wiring

High-speed needle

Readjust.

setting incorrect

Carburetor overflow

Refer to Table 1.

Air cleaner clogged

Clean as necessary.

Compression insufficient

Disassemble, check and replace

(piston ring stuck or worn

if necessary.

out)

Cylinder chromium plating

Replace cylinder.

peeled or worn out

Exhaust port clogged with

Clean as necessary.

carbon

Throttle is not fully open

Readjust.

Improper setting

Set properly.

Height of cutter uneven

Correct properly.

Overloaded

Adjust load.

Clutch shoe worn out

Replace.

•

Inspect and adjust every part of the unit.

- Completely clean every part, and repair, if

necessary.

- Apply thin coating of oil on metal parts to prevent

rust.

- Remove the cutter head, apply sufficient oil

coating and wrap up in plastic.

•

Drain fuel tank, pull starter handle slowly a few
times to drain fuel from carburetor.

•

Pour a small amount of clean motor oil into spark
plug hole, pull starter handle and then crank the
engine until TOP DEAD CENTER.

•

Store in a dry area, free from dust.

Engine overheated

Carburetor defective

Other troubles

Firing function defective

Blade does not cut well

Blade does not rotate

Machine does not trim properly

Engine speed insufficient

Engine runs normally