Side view of a backpack brush cutter with ergonomic handle and shoulder straps.

Brushcutters

Parts, manuals and support for 531RB

All the support you need for 531RB. Manuals, spare parts, guides, how-to’s, and more.

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Support content

Warranty

All you need to know about Husqvarna’s warranty policy and the service provided by us within the warranty period.

Warranty policy
Warranty service

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If your product is broken and you wish to claim your warranty, it must always be examined by a dealer.
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General questions

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Specifications

Asia excl. China
967 93 29‑02
Engine

Cylinder displacement

33.6 cm³

Output shaft power

1.1 kW

Fuel tank volume

1.3 l

Fuel Consumption

598 g/kWh

Maximum power speed

7,500 rpm

Idling speed

2,500 rpm

Maximum rpm output shaft

9,600 rpm

Electrode gap

0.6 mm

Clutch engagement speed (±120)

3,300 rpm

Torque, max.

1.72 Nm

Torque, max. at rpm

5,000 rpm

Spark Plug

NGK BPM7A
Asia excl. China
967 93 29‑02
Capacity

Cutting width

33 cm
Asia excl. China
967 93 29‑02
Equipment

Grass blade

Multi 330-2

Harness

Integrated

Saw blade

Not included

Trimmer head

PT104 M10

Handle type

Loop
Asia excl. China
967 93 29‑02
Dimensions

Tube diameter

26 mm

Weight (excl. cutting equipment)

8.9 kg

Tube length

1,500 mm
Asia excl. China
967 93 29‑02
Lubricant

Lubricant type (Engine)

Husqvarna 2 stroke or equiv. at 50:1

Lubricant type (bevel gear)

Mineral grease
Asia excl. China
967 93 29‑02
Emission

Exhaust emissions (CO₂ EU V)

0 g/kWh

Exhaust emissions (HC average) EU

0 g/kWh

Exhaust emissions (HC average) CARB

0 g/kWh

Exhaust emissions (CO average) EU

0 g/kWh

Exhaust emissions (CO average) EPA

0 g/kWh

Exhaust emissions (NOx average) EU

0 g/kWh

Exhaust emissions (NOx average) EPA

0 g/kWh
Asia excl. China
967 93 29‑02
Transmission

Gear ratio

1.25

Drive gear angle

60 °
Asia excl. China
967 93 29‑02
Vibration

Equivalent vibration level (ahv, eq) left handle

1.89 m/s²

Equivalent vibration level (ahv, eq) right handle

1.98 m/s²
Asia excl. China
967 93 29‑02
Sound and noise

Sound pressure level at operators ear (LpA)

87 dB(A)

Sound power level, guaranteed (LWA)

108 dB(A)
Asia excl. China
967 93 29‑02
Control

Connectivity

Not applicable