Assembly; Operation - Husqvarna 120i Operator's Manual

and chain drive sprocket. Refer to
chain on page 22 .(Fig. 45)
• Do maintenance on the cutting equipment regularly
and keep it correctly lubricated. If the saw chain is
Introduction
WARNING: Read and understand the safety
chapter before you assemble the product.
To assemble the guide bar and saw
chain
WARNING: Always remove the battery
before you assemble or do maintenance on
the product.
1. Disengage the chain brake. (Fig. 47)
2. Loosen the knob and remove the drive sprocket
cover (chain brake) and the transportation guard (A).
(Fig. 48)
3. Put the guide bar on top of the bar bolt. Steer the
guide bar to its most rear position. Lift the saw chain
Introduction
WARNING: Read and understand the safety
chapter before you use the product.
To do a function check before you use
the product
1. Do a check of the chain brake (A) to make sure that
it operates correctly and that it is not damaged.
2. Do a check of the rear right hand guard (B) to make
sure that it is not damaged.
3. Do a check of the power trigger and the power
trigger lockout (C) to make sure that they operate
correctly and that they are not damaged.
4. Do a check of the keypad (D) to make sure that it
operates correctly.
5. Make sure that there is no oil on the handles (E).
6. Do a check to make sure that all parts are correctly
attached and not damaged or missing.
7. Do a check of the chain catcher (F) to make sure
that it is attached correctly.
8. Do a check of the chain tension (G).
1259 - 001 - 11.07.2019
To tighten the saw

Assembly

4. Make sure that the edges of the cutting links face
5. Assemble the drive sprocket cover and steer the
6. Make sure that the drive links of the saw chain fit
7. Make sure that the saw chain is correctly engaged in
8. Tighten the saw chain. See
To assemble a spiked bumper
To assemble a spiked bumper, speak to your servicing
dealer.

Operation

9. Charge the battery (H) and make sure that it is
10. Make sure that the saw chain stops when you
Chain oil
All Husqvarna chainsaws have an automatic chain
lubrication system. On some models the oil flow is also
adjustable.
Think about the following when you select a chain oil:
(Fig. 51)
•
•
•
•
not correctly lubricated, the risk of wear on the guide
bar, saw chain and chain drive sprocket increases.
(Fig. 46)
above the drive sprocket and engage it in the groove
on the guide bar. Start on the top edge of the guide
bar. (Fig. 49)
forward on the top edge of the guide bar.
chain adjuster pin to the hole in the guide bar.
correctly on the drive sprocket.
the groove in the guide bar.
on page 22 for instructions.
correctly attached to the product.
release the power trigger. (Fig. 50)
The oil tank lasts approximately three battery
charges. This applies only if you use the correct
chain oil. If the chain oil is too thin, it will not last that
long.
Chain oil must show good adherence to the saw
chain and also keep its flow quality during warm
summer and cold winter weather.
Use an oil of the right grade (suitable viscosity
range) to agree with the air temperature. In
temperatures below 0°C (32°F) some oils become
too thick. This can cause the oil pump to overload
and result in damage to the oil pump components.
Use the recommended cutting equipment. A guide
bar that is too long will use more chain oil.
To tighten the saw chain
15