Husqvarna 135R Operator's Manual page 23

4. Push the unwanted oil out of the foam air filter while
in the plastic bag.
To do a check of the spark plug
CAUTION:
spark plug. Refer to
25 . An incorrect spark plug can cause
damage to the product.
1. If the product is not easy to start or to operate
or if the product operates incorrectly at idle speed,
examine the spark plug for unwanted materials. To
decrease the risk of unwanted material on the spark
plug electrodes, do these steps:
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.
2. Clean the spark plug if it is dirty.
3. Make sure that the electrode gap is correct. Refer to,
Technical data on page 25 .
4. Replace the spark plug monthly or more frequently if
necessary.
To sharpen the saw blade
WARNING:
protective gloves.
• To sharpen the blade correctly, refer to the
instructions that come with the blade.
975 - 005 - 14.11.2022
Use the recommended
Technical data on page
Stop the engine. Use
• Make sure that the product and blade has sufficient
support when you sharpen it.
• Use a 5.5 mm (7/32 in) round file with a file holder.
• Hold the file at an angle of 15°.
• Sharpen one tooth of the saw blade to the right and
the next tooth to the left, see the illustration.
Note:
Sharpen the edges of the teeth with a flat
file if the blade is heavily worn. Continue to sharpen
with a round file.
• Sharpen all edges equally to keep the blade
balanced.
• Adjust the blade set to 1 mm (0.04 in) with the
recommended setting tool. Refer to the instructions
that come with the blade.
15˚
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