7 Troubleshooting
7.1 Function tests
The function tests show the condition of the electrical
system, the motor and the grinding head.
7.2 To do a function test of the grinding head
1. Put the product down to get access to the grinding
disc.
2. Rotate the grinding disc by hand. Make sure it can
move freely and stable without friction and noise.
3. Examine the brush strip.
4. Examine all parts of the vibration damping system.
5. Examine the tool holder for wear.
6. Tighten the screws.
7. Put the product back to it´s upright position.
7.3 To do a function test of the electrical
system
1. Put the product in upright position.
2. Examine the external cable, plug and connectors.
7.4 To do a function test of the motor
1. Remove the tools from the tool holder.
2. Push the handle down to slightly lift the tool holder
from the surface.
3. Start the motor with the start/stop switch. The motor
must then be at its operation speed in less than 5
seconds.
4. Examine the product for noise and vibrations while
the motor operates.
5. Let the motor operate for approximately 1 minute.
6. Push the stop button.
7.5 Before you do the troubleshooting
Before you do the troubleshooting, do the checks that
follow.
•
The grinding head is slightly lifted from the surface
when the handle is pushed down.
•
The power source has the correct voltage and fuse
rated value.
•
The extensions cables are in good condition. They
are not too long and the gauge is as specified.
•
The power plug and connectors between the
electrical enclosure and the motor are in good
condition.
•
All wires in the electrical enclosure and in the motor
connection box are correctly connected.
14 - Troubleshooting
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