To Do The Maintenance On The Chain Drive Sprocket; Saw Chain; To Examine The Cutting Equipment; Troubleshooting Schedule - Husqvarna 120i Manual Del Usuario

b) Do a check of the groove in the edge of the guide
bar to make sure that it is clean. Clean if
necessary. (Fig. 130)
c) Make sure that the bar tip sprocket turns freely
and that the lubricating hole in the guide bar tip
sprocket is not blocked. Clean and lubricate if
necessary. (Fig. 131)
4. If the saw chain lubrication does not work after
following the steps above, speak to your servicing
dealer.
To do the maintenance on the chain
drive sprocket
The drive system has a drive sprocket.
(Fig. 132)
Do the following maintenance on the chain drive
sprocket:
1. Regularly do a check of the degree of wear on the
drive sprocket. Replace the chain drive sprocket if
there is too much wear.
2. Replace the drive sprocket when you replace the

saw chain.

To examine the cutting equipment

1. Make sure that there are no cracks in rivets and links
and that no rivets are loose. Replace if it is
necessary. (Fig. 133)

Troubleshooting schedule

Table 1: Keypad
Possible fault codes on the keypad of the product.
LED display
Warning indicator flashing.
Green activate LED flashing.
Warning indicator lit.
24
2. Make sure that the saw chain is easy to bend.
3. Compare the saw chain with a new saw chain to
4. Replace the saw chain when the longest part of the

To do a check of the guide bar

1. Make sure that the oil channel is not blocked. Clean
2. Examine if there are burrs on the edges of the guide
3. Clean the groove in the guide bar. (Fig. 130)
4. Examine the groove in the guide bar for wear.
5. Examine if the guide bar tip is rough or very worn.
6. Make sure that the bar tip sprocket turns freely and
7. Turn the guide bar daily to extend its life cycle. (Fig.

Troubleshooting

Possible faults
Chain brake engaged.
Temperature deviation.
Overload. Cutting attachment jam-
med.
The power trigger and the activate
button are pressed at the same time.
Low battery voltage.
Service.
Replace the saw chain if it is rigid.
examine if the rivets and links are worn.
cutting tooth is less than 4 mm/0.16 in. Also replace
the saw chain if there are cracks on the cutters. (Fig.
134)
if it is necessary. (Fig. 129)
bar. Remove the burrs using a file. (Fig. 135)
Replace the guide bar if it is necessary. (Fig. 136)
(Fig. 137)
that the lubricating hole in the bar tip sprocket is not
blocked. Clean and lubricate if it is necessary. (Fig.
131)
138)
Possible action
Pull back the front hand guard to re-
lease the chain brake.
Allow the product to cool down.
The cutting attachment is jammed.
Release the cutting attachment.
Release the power trigger and the
product is active.
Charge the battery.
Turn to your servicing dealer.
1259 - 001 - 11.07.2019