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Atlas Copco QAS 500 Volvo S2A APP - Starting and Stopping Procedures

Atlas Copco QAS 500 Volvo S2A APP
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- 74 -
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 circuit breaker Q1 is switched off.
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 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.
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).
Voltage is applied to the Qc1002™ module.
The unit can be started manually by pressing the
START button on the Qc1002™ module.
The unit will start. The starting attempt will take
maximum 12 seconds.
Switch on circuit breaker Q1 in case no contactor
is installed.
To start up the unit from a remote
location, proceed as follows:
Put the starter switch S20 in position I (ON).
Voltage is applied to the Qc1002™ module.
The unit can be started from a remote location by
pressing the remote mode button on the
Qc1002™ module.
Switch on circuit breaker Q1.
Put the remote start/stop switch in position start.
The unit will start. The starting attempt will take
maximum 12 seconds.
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.

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