Husqvarna 450 Rancher Manual De Usuario página 23

Maintenance and checks of the safety
devices on the product
To do a check of the brake band
1. Use a brush to remove wood dust, resin and dirt
from the chain brake and clutch drum. Dirt and wear
can decrease the function of the brake.
2. Do a check of the brake band. The brake band must
be at a minimum of 0.6 mm/0.024 in thick at its
thinnest point.
To do a check of the front hand guard and the
chain brake activation
1. Make sure that the front hand guard does not have
damages such as cracks.
2. Make sure that the front hand guard moves freely
and that it is attached safely to the clutch cover.
3. Hold the product with 2 hands above a stump or
other stable surface.
WARNING:
4. Let go of the front handle and let the guide bar tip fall
against the stump.
5. Make sure that the chain brake engages as the
guide bar tip hits the stump.
1286 - 012 - 08.03.2023
The engine must be off.
To do a check of the chain brake
1. Start the product. Refer to
page 13 for instructions.
WARNING:
chain does not touch the ground or other
objects.
2. Hold the product tightly.
3. Apply full throttle and tilt your left wrist against the
front hand guard to engage the chain brake. The
saw chain must stop immediately.
WARNING:
handle.
To do a check of the throttle trigger and
throttle trigger lockout
1. Make sure that the throttle trigger and throttle trigger
lockout move freely and that the return spring works
correctly.
2. Press down the throttle trigger lockout and make
sure that it goes back to its initial position when you
release it.
3. Make sure that the throttle trigger is locked at the
idle position when the throttle trigger lockout is
released.
To start the product on
Make sure that the saw
Do not let go of the front
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