Husqvarna ST 424 Manual De Usuario página 18

Throttle control
Note:
If the snow is wet or heavy, use the fast or
boost modes.
The throttle control adjusts the engine speed. It has 3
modes: boost, fast and slow.
(Fig. 68)
• Boost (A): to increase speed when the product is
operated but does not throw snow, or to increase the
distance that snow is thrown.
• Fast (B): standard operation
• Slow (C): to decrease the distance that snow is
thrown, or to decrease engine noise
To use the throttle control
• Turn the throttle control to change the engine speed.
To use the heated handles
• Push the switch to I to start the heated handles.
• Push the switch to O to stop the heated handles.
(Fig. 69)
To stop the product
1. Turn the key to the STOP position. (Fig. 70)
2. Remove the ON/OFF key.
To adjust the neutral position
1. Start the product. Refer to
manual start on page 17 or To start the engine,
electric start on page 17 .
2. Move the drive speed lever to the neutral position.
3. Engage the drive engagement. If the product moves
forward, do the steps that follow:
a) Stop the product.
b) Loosen the nut (A) with two ½'' wrenches. (Fig.
71)
c) Move down the metal threaded fitting.
d) Tighten the nut (B) to lock the new cable
position.
e) Adjust the cable position until the product does
not move forward when the drive engagement
is engaged and the drive speed lever is in the
neutral position.
4. If the product moves rearward when the drive
engagement is engaged and the drive speed lever
is in the neutral position, do the steps that follow:
a) Stop the product.
b) Loosen the nut (C) with two ½'' wrenches. (Fig.
72)
c) Move up the metal threaded fitting.
d) Tighten the nut (D) to lock the new cable
position.
18
To start the engine,
e) Adjust the cable position until the product does
not move rearward when the drive engagement
is engaged and the drive speed lever is in the
neutral position.
To adjust the discharge chute and the
discharge chute deflector
1. Push the release lever (B) on the discharge chute
lever (A) and adjust the discharge chute to the left or
right position. (Fig. 73)
2. Move the remote control lever (C) to adjust the snow
throwing distance.
a) Move the remote control lever up to decrease the
snow throwing distance.
b) Move the remote control lever down to increase
the snow throwing distance.
To adjust the skid plates
The skid plates prevent damage to the bottom of the
snow thrower. Adjust the skid plates (A) when the
locknut (B) is loose, or the skid plate is not at the correct
distance from the ground. No adjustment is necessary
for standard installation.
1. Loosen the locknut (B) with a 13 mm (½ in.) open
wrench.
2. Move the skid plates (A) up or down.
a) On flat surfaces set the distance between the
scraper bar and the ground to 5-6 mm (0.2-0.25
in).
b) On rough surfaces set the skid plates (A) in a
position where the scraper bar is above the top
of the ground.
WARNING:
gravel and stones do not go into the
product. Objects that eject at high
speed can cause injury.
3. Tighten the locknut (B). (Fig. 74)
To use the drift cutters (if equipped)
Use the drift cutters to cut through snowdrifts deeper
than the front of the product.
1. Loosen the adjustment nuts (A) on both sides of the
product to allow each drift cutter (B) to be raised to
its highest position. (Fig. 75)
2. Tighten the nuts.
3. Lower the drift cutters after use.
To adjust the height of the auger
bucket (for ST 424T/427T/430T only)
1. Push the lever (A) down. (Fig. 76)
2. Move the handles (B) up or down to adjust the height
of the auger bucket .
Make sure that
876 - 019 - 05.10.2023