QAS108 Pd(S) Mk II
B
EFORE 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 water level must be near to the FULL
mark. Add coolant if necessary.
– Drain any water and sediment from the fuel pre-filter.
Check the fuel level and top up if necessary. It is recom-
mended to fill the tank after the day's operation to prevent
waterdamp 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 termi-
nals, etc. Correct if necessary.
– Check that circuit breaker Q1 is switched off.
– Check that fuse F4 is not activated and that the emer-
gency stop is in the "OUT" position.
– Check that the load is switched off.
S
TARTING
– Turn the battery switch to ON.
– Put the starter switch in position I. The instrument panel
lights light up, the fuel solenoid is energized and the
preheating of the engine starts. After approximately 10
seconds, the preheat lamp on the engine control module
goes out.
– Push down the starter switch into position
as soon as the engine fires. The switch automatically
returns to position I.
Do not keep the switch in its utmost position for more than 10
seconds (maximum 20 seconds in extremely cold conditions).
Wait two minutes between each starting attempt.
When the ambient temperature is below 0°C, start the engine
as follows: put the starter switch in position I until the preheat
lamp goes out. Put the switch back into position O and then
immediately put it into position
soon as the engine fires.
If the engine fails to start and for starting in extremely cold
!
conditions, consult your local Atlas Copco dealer.
– Check that the warning lamps on the control and indicator
panel are out.
– Run the engine for approximately 5 minutes to warm up.
Check the engine oil pressure (P9) and the cooling water
temperature (P8).
– Check the voltmeter P4 (with voltmeter selector switch S4
in different positions) and the frequency meter P5.
10
and release it
. Release the switch as
– Switch circuit breaker Q1 to off and then to on.
– Switch on the load and check the ammeters P1, P2 and
P3, voltmeter P4 (voltmeter selector switch in different
positions) and frequency meter P5.
D
URING OPERATION
Following points should be carried out regularly:
– Check the engine gauges and the lamps for normal
readings.
Avoid to let the engine run out of fuel. If it happened, priming
!
will speed up the starting.
– Check for leakage of oil, fuel or cooling water.
– Avoid long low-load periods. 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
per phase is not exceeded.
– When single-phase loads are connected to the generator
output terminals, keep all loads well-balanced.
!
Never turn the battery switch to OFF during operation.
If circuit breaker Q1 is activated during operation, switch off
the load and stop the generator. Check and, if necessary,
decrease the load.
The generator's side doors may only remain opened for short
periods during operation, to carry out checks for example.
S
TOPPING
– Switch off the load.
– Switch off circuit breaker Q1.
– Let the engine run for about 5 minutes.
– Stop the engine by putting the starter switch in position O.
– Turn the battery switch to OFF.
– Lock the side doors and the door of the indicators and
control panel to avoid unauthorized access.