Husqvarna 331R Operator's Manual page 13

Gasoline, liter
5
10
15
20
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
WARNING: Do not smoke or put hot objects
near fuel. Before you add fuel, stop the
engine and let it cool for minutes.
WARNING: When you add fuel, open the
fuel tank cap slowly to release unwanted
pressure.
WARNING: After you add fuel, tighten the
fuel tank cap carefully. Move the machine
away from the refuelling area and the power
before you start the engine.
• Always use a fuel container with an anti-spill valve.
• Make sure that the area near the fuel tank cap is
clean. Contamination in the tank can cause
operating problems.
• 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.
1158 - 005 - 26.03.2020
Oil, liter
0,1
0,2
0,3
0,4
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
WARNING: Before you start the product,
install the complete clutch cover and shaft.
The loose clutch can cause injury. Use
gloves.
WARNING: Move the product away from the
refuelling area and the power. Put it on a flat
surface. Make sure that no objects touch the
cutting attachment.
WARNING: Make sure that no unauthorised
persons are in the work area. Or it can
cause a risk of dangerous injury. The safety
distance is 15 m.
1. Put the stop switch to the start position.
2. Press the air purge ten times.
3. Move choke control to the choke position.
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