Operation - Husqvarna 122R Operator's Manual

3. Turn the output shaft until the hole in the drive disc
aligns with the hole in the gear housing.
4. Put a small screwdriver (C) in the hole to lock the
shaft. (Fig. 29)
WARNING:
safety chapter before you operate the
product.
Fuel
To use fuel
CAUTION:
cycle engine. Use a mixture of gasoline
and two-cycle engine oil. Make sure to use
the correct quantity of oil in the mixture.
Incorrect ratio of gasoline and oil can cause
damage to the engine.
Gasoline
CAUTION:
octane number less than 90 RON (87 AKI).
This can cause damage to the product.
CAUTION:
more than 10% ethanol concentration (E10).
This can cause damage to the product.
CAUTION:
This can cause damage to the product.
• Always use new unleaded gasoline with a minimum
octane number of 90 RON (87 AKI) and with less
than 10% ethanol concentration (E10).
• Use gasoline with a higher octane number if you
frequently use the product at continuously high
engine speed.
• Always use a good quality unleaded gasoline/oil
mixture.
Two-cycle engine oil
• Use only high quality two-cycle engine oil. Use only
an air cooled engine oil.
• Do not use other types of oil.
• Mixture ratio 50:1 (2%)
Gasoline
1 U.S. Gal.
1 UK Gal.
2228 - 001 - 28.07.2023

Operation

Read and understand the
This product has a two-
Do not use gasoline with an
Do not use gasoline with
Do not use leaded gasoline.
Oil
77 ml (2,6 oz)
95 ml (3,2 oz)
5. Turn the trimmer head (H) counterclockwise to
tighten the trimmer head to the gearbox. (Left hand
threads.) (Fig. 30)
Gasoline
5 l
To make the fuel mixture
Note:
Always use a clean fuel container when you mix
the fuel.
Note:
Do not make more than 30 days quantity of fuel
mixture.
1. Add half of the gasoline quantity.
2. Add the full quantity of oil.
3. Shake the fuel mixture to mix the contents.
4. Add the remaining gasoline quantity.
5. Shake the fuel mixture to mix the contents.
6. Fill the fuel tank.
To add fuel
• Always use a fuel container with an antispill valve.
• If there is some fuel on the container, remove the
unwanted fuel and let the container dry.
• Make sure that the area near the fuel tank cap is
clean.
• Shake the fuel container before you add the fuel
mixture to the fuel tank.
To start and stop
To examine before start
1. Examine the product for missing, damaged, loose or
worn parts.
2. Examine the nuts, screws and bolts.
3. Examine the blades.
4. Examine the locknut. Make sure that the locknut has
a minimum locking force of 1.5 Nm (1,1 ft lb). Torque
the locknut to 35-50 Nm (26-36 ft lb).
5. Examine the air filter.
6. Examine the throttle trigger lockout and the throttle
control.
7. Examine the stop switch.
8. Examine the product for fuel leaks.
To start a cold engine
1. Push the primer bulb 10 times. (Fig. 31)
Oil
100 ml (3,4 oz)
11