Maintenance - Husqvarna 128CD Operator's Manual

To operate the grass trimmer
CAUTION:
the engine to idle speed after each
operation. A long period at full throttle
without a load on the engine can cause
damage to the engine.
Note:
Clean the cover of the trimmer head when
you attach a new trimmer line to prevent vibrations.
Examine other parts of the trimmer head and clean if
it is necessary.
To trim the grass
1. Hold the trimmer head immediately above the
ground at an angle. Do not push the trimmer line
into the grass. (Fig. 34)
WARNING:
the safety chapter before you clean,
repair or do maintenance on the product.
Maintenance schedule
Make sure that you obey the maintenance schedule.
The intervals are calculated from daily use of the
product. The intervals are different if you do not use
the product each day. Only do the maintenance work
that is found in this manual. Speak to an approved
service center about other maintenance work not
found in this manual.
Weekly maintenance
• Clean the external surfaces.
• Examine the idle speed.
• Examine the bevel gear grease (straight shaft).
Monthly maintenance
• Examine the starter rope handle and the starter
rope.
Yearly maintenance
• Examine the spark plug.
• Apply grease to the end of the drive shaft (two-
piece shaft).
• Clean the external surfaces of the carburetor and
its adjacent areas.
• Clean the cooling system.
• Examine the spark arrester screen.
• Examine the fuel filter.
• Examine the fuel hose for damage.
• Examine all cables and connections.
50 hours maintenance
• Have an approved service center repair or
replace the muffler.
215 - 005 - 04.09.2023
Make sure that you slow

Maintenance

Read and understand
2. Decrease the length of the trimmer line by 10-12
cm / 4-4.75 in.
3. Decrease the engine speed to decrease the risk
of damage to plants.
4. Use 80 % throttle when you cut grass near
objects. (Fig. 35)
To cut the grass
1. Make sure that the trimmer line is parallel to the
ground when you cut the grass. (Fig. 36)
2. Do not push the trimmer head to the ground. This
can cause damage to the product.
3. Move the product from side to side when you cut
grass. Use full speed. (Fig. 37)
To adjust the idle speed
• Make sure that the air filter is clean and the air
filter cover is attached before you adjust the idle
speed.
• Adjust the idle speed with the idle adjustment
screw T which is identified with "T" mark.
• The idle speed is correct when the engine
operates smoothly in all positions. The idle speed
must be below the speed when the cutting
attachment starts to turn.
1. Turn the idle adjustment screw clockwise until
the cutting attachment starts to turn. (Fig. 38)
2. Turn the idle adjustment screw counterclockwise
until the cutting attachment stops.
To clean the cooling system
Clean the parts of the cooling system with a brush.
To do maintenance on the spark
arrester screen
Use a wire brush to clean the spark arrester screen.
To examine the spark plug
CAUTION:
spark plug. Make sure that the
replacement is the same as the
manufacturer supplied part. An incorrect
spark plug can cause damage to the
product.
1. Examine the spark plug when:
a) the engine is low on power.
b) the engine is not easy to start.
c) the engine does not operate correctly at idle
speed.
Use the recommended
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