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To Adjust The Idle Speed; To Do A Check Of The Spark Plug; To Do Maintenance On The Muffler; To Examine And Clean The Cooling System - Husqvarna 150BT Mark II Manual De Usuario

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Maintenance
Examine and clean the spark arrestor screen on the muffler (for products with
catalytic converter).
Examine the spark plug. Replace if it is necessary.

To adjust the idle speed

1. Make sure that the air filter is clean and that the air
filter cover is attached.
2. Adjust the idle speed with the idle speed screw. To
see where the idle speed screw is on your product,
Product overview on page 6 .
refer to

To do a check of the spark plug

CAUTION:
spark plug. Refer to
16 . An incorrect spark plug can cause
damage to the product.
1. Stop the engine and let the product become cool.
2. Clean the spark plug if it is dirty.
3. Make sure that the electrode gap is correct. Refer to
Technical data on page 16 . (Fig. 39)
4. Replace the spark plug monthly or more frequently if
it is necessary.

To do maintenance on the muffler

CAUTION:
is frequently blocked, it can be a sign that
performance of the catalytic converter is
decreased. Speak to you servicing dealer to
examine the muffler. A blocked spark
arrestor screen causes overheating and
results in damage to the cylinder and piston.
CAUTION:
must be replaced if it is damaged. Do not
use a product if the spark arrestor screen on
the muffler is missing or defective.
Clean the spark arrestor screen on the muffler. Use
a wire brush. (Fig. 40)
Let a servicing dealer replace or do service on the
muffler and the spark arrestor screen after 50 hours
of operation.
To examine and clean the cooling
system
The cooling system includes the cooling fins on the
cylinder and the air intake screen.
1456 - 003 - 21.05.2021
Use the recommended
Technical data on page
If the spark arrestor screen
The spark arrestor screen
1. Stop the engine.
2. Make sure that the cooling system is not dirty or
blocked. If it is necessary, clean the air intake screen
and cooling fins.
CAUTION:
cooling system can increase the
temperature of the engine and cause
damage to the product. A clogged air
intake screen decreases the blow force.
3. Examine the cooling system for damages. Make
sure that the parts are attached correctly to the
product.

To clean the air filter

CAUTION:
without an air filter or with a damaged air
filter. Dust in the air can cause damage to
the engine.
1. Push the choke control to the closed position.
2. Remove the air filter cover (A).
3. Remove the pre-filter (B) from the air filter cover.
(Fig. 41)
4. Remove the air filter (C) from the filter frame.
5. Clean the pre-filter and the air filter with warm water
and soap.
Note:
An air filter that has been used for a long
time cannot be fully cleaned. Replace the air filter
regularly and always replace a defective air filter.
6. Clean the inner surface of the air filter cover (A) with
a brush.
7. Put the air filter in the filter frame.
8. Attach the pre-filter to the air filter cover.
9. Attach the air filter cover to the product.
Daily
Weekly
Monthly
A dirty or blocked
Do not use a product
X
X
13

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