Battery Maintenance; To Examine The Spark Plug - Husqvarna ST 427 Manual De Usuario

Battery maintenance

Note:
The battery on your product is maintenance
free. Do not open or remove the caps or the covers.
To charge the battery
Note:
Before long term storage, charge the battery
with a battery charger to extend the life of the
battery.
1. Remove the battery cover. Refer to
the battery on page 20 .
2. Clean the terminals. Refer to
and the terminals on page 20 .
3. Connect the battery charger to the battery
charger connector (A). (Fig. 77)
Note:
For applicable chargers refer to
Accessories on page 28 .
4. When the battery is charged, disconnect the
battery charger.
5. Install the battery cover.
To replace the battery
WARNING:
Do not let metal objects touch the 2
battery terminals. This can cause a short
circuit of the battery.
1. Loosen the knob (A), then tilt the bottom of the
cover in the direction of the engine. Lift the
battery cover off the holders (B). (Fig. 78)
2. Disconnect the BLACK battery cable.
WARNING:
must be disconnected first.
3. Disconnect the RED battery cable.
4. Loosen the nuts and remove the battery strap.
5. Carefully remove the battery from the product.
6. Install a new battery.
7. Connect the RED battery cable and tighten the
bolt.
WARNING:
RED cable must be connected first.
8. Connect the BLACK cable and tighten the bolt.
9. Install the battery cover.
To clean the battery and the terminals
1. Remove the battery. Refer to
battery on page 20 .
20
To replace
To clean the battery
Risk of electrical shock.
The BLACK cable
Risk of sparks. The
To replace the
2. Flush the battery with plain water and let it
become dry.
3. Clean the terminals and battery cable ends with
a wire brush until they are bright.
4. Lubricate the terminals with grease.
5. Install the battery. See
page 20 .
6. Install the battery cover.
Muffler
The muffler keeps the noise levels to a minimum and
sends the exhaust fumes away from the operator.
Do not use the product if the muffler is missing or
defective. A defective muffler increases the noise
level and the risk of fire.
WARNING:
very hot during and after use and when
the engine operates at idle speed. Be
careful near flammable materials and/or
fumes to prevent fire.

To examine the spark plug

CAUTION:
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.
• If the spark plug is dirty, clean it and make sure
that the electrode gap is correct, refer to
Technical data on page 28 . (Fig. 79)
• Replace the spark plug if it is necessary.
To inspect the augers and the
scraper bar
1. Before each use, inspect the augers and the
scraper bar for wear.
2. If the edge of the scraper bar is worn, reverse the
scraper bar. If the scraper bar has damages or is
worn on both edges, replace it.
3. If the edges of the augers are worn, contact an
authorized service center to replace them.
To replace the auger shear pins
The auger shear pins protect the product from
damage. The auger shear pins break if an object
comes into the moving parts.
CAUTION:
equipment shear pins supplied with the
product.
To replace the battery on
The muffler becomes
Always use the
Use only original
876 - 014 - 19.05.2021