Atlas Copco QAS 14, Instruction Manual

Page: 38 / 100

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Before starting
– With the generator standing level, check the
engine oil level and top up if necessary. The oil
level must be near to, but not exceed the high mark
on the engine oil level dipstick.
– Check the coolant level in the expansion tank of
the engine cooling system. The coolant level must
be near to the FULL mark. Add coolant if
necessary.
– Drain any coolant and sediment from the fuel pre-
filter. Check the fuel level and top up if necessary.
It is recommended to fill the tank after the day’s
operation to prevent coolantdamp in a nearly
empty tank from condensing.
– Check the vacuum indicator of the air filter. If the
red part shows completely, replace the filter
element.
– Press the vacuator valve of the air filter to remove
dust.
– Check the generator for leakage, tightness of wire
terminals, etc. Correct if necessary.
– Check that fuse F10 has not tripped and that the
emergency stop is in the OUT position.
– Check that the load is switched off.
– Check that circuit breaker Q1 is switched off.
– Check that the earth fault protection (N13) has not
tripped (reset if necessary).
Operating Qc1002™
Starting Qc1002™
To start up the unit locally, proceed
as follows:
– Switch on the battery switch, if applicable.
– Switch off circuit breaker Q1. This is not
necessary when a plant contactor is installed
between Q1 and the load.
– Put the starter switch S20 in position I (ON). The
unit starts a preheating cycle which takes 12
seconds.
– After the preheating period, the unit will start. The
starting attempt will take maximum 12 seconds.
– Switch on circuit breaker Q1.
To start up the unit from a remote
location, proceed as follows:
– Put the starter switch S20 in position .
– Switch on circuit breaker Q1.
– Put the remote start/stop switch in position start.
The unit starts a preheating cycle which takes 12
seconds.
– After the preheating period, the unit will start. The
starting attempt will take maximum 12 seconds.
– An external contactor can be connected and
controlled by the Qc1002™.
During operation Qc1002™
Following points should be carried out regularly:
– Check the engine gauges and the lamps for normal
readings.
– Check for leakage of oil, fuel or coolant.
– Avoid long low-load periods (< 30%). In this case,
an output drop and higher oil consumption of the
engine could occur.
– Check, by means of the generator gauges, that the
voltage between the phases is identical and that
the rated current in the third phase (L3) is not
exceeded.
– When single-phase loads are connected to the
generator output terminals, keep all loads well-
balanced.
If circuit breakers are activated during operation,
switch off the load and stop the generator. Check
and, if necessary, decrease the load.
Avoid to let the engine run out of fuel.
If it happened, priming will speed up
the starting.
The generator’s doors may only
remain opened for short periods
during operation, to carry out
checks for example.
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