Husqvarna 120i Workshop Manual


Husqvarna 120i Workshop Manual for the service and repair of the Husqvarna 120i chainsaw. View pages online or download a complete PDF manual with clear easy to understand images, diagrams and information. Print or save to any device.

Husqvarna 120i Workshop Manual Repair

Husqvarna 120i Workshop Manual for the Repair and service of the Husqvarna 120i chainsaw. The PDF workshop service manual has accurate, easy to understand information and diagrams to help repair and service the chainsaw. Service Information to help you to troubleshoot, repair and fix the Husqvarna 120i chainsaw. View pages online or download a complete PDF service manual that you can easily save, print or view on any device.

Husqvarna 120i Workshop Manual Contents


Introduction, Safety Regulations, Servicing data, Servicing tools, Repair instructions, wiring, To clean and examine the product parts, To replace the guide bar bolt, To replace the chip guard, To replace the chain oil cap, To repair damaged threads, To replace the chain catcher, To replace the spiked bumper, Drive wheel cover and guide bar, Crankcase, Power trigger, Front hand guard, Motor,  Impeller, Main switch, Control unit, Replacing the keypad, Chain brake, Chain brake sensor, Oil pump,  Chain tensioner.

See the complete service workshop manual, carburetor manual, parts list, operator manual and technical supplements PDF downloads. Also the repair and service articles available on this website for more information on how to service, repair and find parts for the chainsaw.

Husqvarna 120i Chainsaw Specifications


Chain speed at max power 11.5 m/s
Battery voltage 36 V
Battery type Li-Ion


Recommended bar length, min 30 cm
Recommended bar length, max 35 cm
Pitch 3/8″
Chain type H38
Battery BLi20, 36V / 4,0Ah
Guide Bar 30 cm
Bar length (inch) 12 in


Weight (excl. battery and cutting equipment) 2.95 kg

Sound and Noise

Sound pressure level at operators ear 88 dB(A)
Sound power level, guaranteed (LWA) 101 dB(A)


Equivalent vibration level (ahv, eq) front handle 3.4 m/s²
Equivalent vibration level (ahv, eq) rear handle 3.8 m/s²

Read the Husqvarna 120i Workshop Manual for more chainsaw specs.

Husqvarna are well known for their professional chainsaws and the 120i is the company’s entry-level cordless chainsaw for anyone wanting to chop logs and prune around the garden. Easy-to-use, lightweight electric chainsaw is ideal for the garden. It has lower noise levels than a petrol chainsaw and no direct emissions.

It’s very lightweight at 10.8 lbs, comes with a 14-inch bar, and includes a 40v battery. Battery run time depends on how you’re using it, but it’s designed to last between 1 and 3 hours.

The Husqvarna 120i chainsaw is a popular chainsaw among those who are using it for light work, but for those wanting to do more, it will be a disappointment. If you’re using it for what it was made for it will serve you well – but just don’t expect too much from it.


  • SavE mode for increased runtime – a push-button switch between high and low power
  • The motor gives high torque to weight ratio
  • Easy tool-less chain tensioning (including bar assembly)
  • Flip-up fuel and oil tank caps
  • Cordless – a bit obvious by this point!
  • A see-through window on the chain brake
  • Easy to use keypad
  • Inertia activated chain brake for kickback protection
  • Quiet and fume free
  • Easy to wield and maneuver

Husqvarna 12i Pros:

  • Quick and easy to start
  • Different power levels
  • Very light and maneuverable
  • Affordable and accessible
  • Quiet and fume-free

Husqvarna 120i Cons

  • A bit of an ugly design
  • More limited run time than with a gas chainsaw
  • Only for light tasks

Husqvarna 120i Cordless battery operated chainsaw

The Husqvarna batteries are quick to charge – takes between 2 and 3 hours – and they’re easy to install.

The 12oi takes the battery BLi20, which is a 36V / 4Ah battery.

These are the battery numbers that are compatible with the 120i:

  • HUSQVARNA Battery BLi22
  • HUSQVARNA Battery BLi200
  • HUSQVARNA Battery BLi200X
  • HUSQVARNA BLi950X (backpack battery)

These batteries are different Ah and will run longer and harder than the battery that comes included with the 12oi.

Husqvarna 120i Workshop Manual PDF


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