Husqvarna LB146, Operator'S Manual

Page: 14 / 392

LED display on the battery Status
LED 1, 2 and 3 are green and LED 4
is red.
78%-100%
Lamp indicator on the bat-
tery charger
Status
Constant red light The battery charges.
Constant green light The battery is fully charg-
ed.
To examine the spark plug
CAUTION:
Always use the
recommended spark plug type. Incorrect
spark plug type can cause damage to the
product.
• Examine the spark plug if the engine is low on
power, is not easy to start or does not operate
correctly at idle speed.
• To decrease the risk of unwanted material on the
spark plug electrodes, obey these instructions:
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.
• If the spark plug is dirty, clean it and make sure that
the electrode gap is correct, refer to
Technical data
on page 16 . (Fig. 40)
• Replace the spark plug if it is necessary.
Air filter
A dirty air filter can cause the engine to be damaged or
not operate correctly. Do maintenance on the air filter
more frequently in dusty conditions. Refer to
Maintenance schedule on page 11 for information about
when to replace the air filter.
Note:
Always replace a damaged air filter.
To remove and install the air filter
WARNING:
Use protective gloves.
1. Push the clips on the air filter cover.
2. Carefully remove the air filter cover (A) from the
engine.
3. Remove the air filter (B). (Fig. 41)
4. Examine the air filter for damages. Replace a
damaged air filter.
5. Clean and examine the air filter. Refer to To clean
the air filter on page 14
.
6. Install in the opposite sequence.
To clean the air filter
A dirty air filter can cause the engine to be damaged or
not operate correctly. Do maintenance on the air cleaner
more frequently in dusty conditions.
See
Maintenance schedule on page 11
for information
about when to replace the air filter.
1. Remove the air filter cover and remove the filter.
2. Clean the filter by hitting it against a flat surface. Do
not use solvent with petroleum, kerosene or
compressed air to clean the filter.
Note:
Air filters in operation for a long time cannot
be cleaned fully. Replace the air filter at regular
intervals. Damaged air filters must always be
replaced.
3. When you assemble the air filter, make sure that it
fully seals against the filter holder.
To examine the fuel system
• Examine the fuel tank cap and the seal for the fuel
tank cap to make sure that there are no damages.
• Examine the fuel hose to make sure that there are
no leaks. If the fuel hose is damaged, let a service
agent replace it.
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