Husqvarna 129 RJ Manual De Usuario página 13

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.
W W eekly maintenance
• Clean the external surfaces.
• Examine the idle speed.
• Examine the bevel gear grease.
Monthly maintenance
• Examine the starter rope handle and the starter
rope.
Yearly maintenance
• Examine the spark plug.
• 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.
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 (Picture 38) 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.
2. Turn the idle adjustment screw counterclockwise
until the cutting attachment stops.
To remove the locknut
CAUTION: Replace the locknut when you
use it for approximately 10 times.
1. Remove the locknut in the direction as the cutting
attachment turn (Picture 45).
Note: The locknut has a left thread.
2. Examine that you cannot turn the nylon lining of the
locknut with your hands. The nylon lining must
supply a minimum resistance of 1.5 Nm (1,1 ft lb).
3. Tighten the locknut with the socket wrench.
194 - 002 -
To do maintenance on the spark
arrester screen
Use a wire brush to clean the spark arrester screen
(Picture 39).
To clean the cooling system
Clean the parts of the cooling system (Picture 40) with a
brush.
To examine the spark plug
CAUTION: Use the recommended 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.
2. If, the engine is not easy to start or operate, examine
the spark plug for unwanted materials. To decrease
the risk of unwanted material on the spark plug
electrodes:
a) make sure that the idle speed is correctly
adjusted.
b) make sure that the fuel mixture is correct.
c) make sure that the air filter is clean.
3. Clean the spark plug if it is dirty. Examine that the
electrode gap is correct (Picture 41)
4. Replace the spark plug when it is necessary.
To do the maintenance to the air filter
To clean the air filter
1. Remove the air filter cover and remove the air filter
(Picture 42).
2. Clean the air filter with warm soap water. Make sure
that the air filter is dry before you install it.
3. Replace the air filter if it is too dirty to fully clean it.
Always replace a damaged air filter.
4. If your product has a foam air filter, apply air filter oil.
Only apply air filter oil to a foam filter. Do not apply
oil to a felt filter.
To apply air filter oil to the air filter
CAUTION: Always use special air filter oil on
foam air filters. Do not use other types of oil.
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