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Maintenance; Troubleshooting - Husqvarna CF 11M Operator's Manual

Frequency converter
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Daily maintenance
Clean the external surface.
Tighten cable connections fully.
Make sure that the ON/OFF buttons operate
correctly.
Make sure that the cold air openings are clean.
Make sure that the cover for the cooling fan and
other protective covers are correctly installed.
Make sure that the electrical connections and the
power cord are in good condition and not damaged.
Problem
The product does not
start.
The product stops af-
ter a while.
1381 - 002 - 12.03.2020

Maintenance

Troubleshooting

Cause
The power plug is not connected.
The power switch releases when you push
the green ON button.
There is no power in the power outlet.
The power cord is defective.
Some of the motor protection circuit breakers
are released (CF67TCI4P only).
There is overload in the product.
The motor protection circuit breakers release
(CF67TCI4P only).
The concrete vibrator is defective and the
amperage consumption is too high.
The load is too high for the product because
the vibrator head is too large.
The bearings in the product are worn out.
The power outlets on the product or the pow-
er plugs on the concrete vibrators are dam-
aged.
The product becomes too hot.
Make sure that screws and glands are sealed
against water.
Maintenance after long-term storage
Let a service agent do a check of the insulation between
the phases and between the phase and ground. Use a
500VCC mega-ohm meter or equivalent. The measured
value must be more than 10 mega-ohms at
temperatures lower than 100°C/212°F.
Solution
Connect the power plug to a power outlet.
Let an electrician do a check of the input volt-
age. The input voltage must be between +10
to -5% nominal. The frequency must be ±2%.
Replace or repair the power outlet.
Let a service agent replace the power cord.
Make sure that the switches for all the motor
protection circuit breakers are set to OFF.
Make sure that the total nominal consump-
tion of the connected concrete vibrators is
lower than the nominal output from the prod-
uct.
Let an electrician do a check of the input volt-
age. The input voltage must be between +10
to -5% nominal. The frequency must be ±2%.
Replace the concrete vibrator.
Make sure that the diameter of the product is
adapted to the space between the rebars.
The vibrator head must not touch the rebars.
Replace the bearings.
Let a service agent replace the damaged
parts.
Let the product become cool for 30 minutes
and start it again. Make sure that the cooling
fan operates correctly. Remove concrete
from the heatsinks on the casing.
7

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