Troubleshooting; Overhaul; To Connect The Common Service Tool; To Do Troubleshooting Of The Common Service Tool - Husqvarna 536LiL Workshop Manual

6.1 Overhaul

Examine the components of the product. You find repair
and servicing instructions for each component in the
related chapters of this manual.

6.2 To connect the common service tool

1. Connect the adapter cable for the common service
tool to the battery and the battery connector on the
product. Connect cable (A) to the common service
tool to do troubleshooting of the product. Connect
cable (B) to the common service tool to do
troubleshooting of the battery.

6.4 Troubleshooting of the product

Symptom
The product does not start. No LEDs
come on when you press the on/off
button.
No reaction from the electrical motor
when you push the power trigger.
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6 Troubleshooting

A B
Possible causes
Defective battery.
Defective plug between battery and
product.
Defective connection in keypad con-
nector.
Broken keypad.
Cables between control unit and key-
pad/main switch are damaged.
Short circuit in control unit.
Defective connection in the signal
connector for the main switch.
Motor connector not correctly assem-
bled.
Internal damage to main switch.
Short circuit in control unit.
Note: Refer to the manual for the common service
tool for instructions and obey the instructions.
2. Do troubleshooting as given in the common service
tool instructions.
6.3 To do troubleshooting of the common
service tool
If there is no signal to the common service tool when it is
connected to the product, do the procedure that follows.
1. Make sure that the connectors on the battery and on
the product are clean and not damaged. Replace the
battery or control unit on the product if there is
damage.
2. Make sure that the cable to the common service tool
is clean and not damaged. Replace the cable if there
is damage.
3. Restart the computer.
4. Install the software again.
Recommended step
Press the on/off button to do a check
of the battery. A minimum of 1 green
LED must come on.
Make sure that the power connectors
between the battery and the product
are not dirty or damaged.
Make sure that the main switch signal
connector is correctly assembled, dry,
not damaged and that there is no cor-
rosion.
Replace keypad.
Repair/replace the cables if you can
see damages.
Replace control unit.
Make sure that the main switch signal
connector is correctly assembled, dry,
not damaged and that there is no cor-
rosion.
Make sure that the motor connec-
tor(s) are correctly assembled.
Replace main switch.
Replace control unit.
Troubleshooting - 39