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Atlas Copco XAS 175 Dd - Starting;Stopping

Atlas Copco XAS 175 Dd
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XA(S)175 Dd
18
3.3 STARTING/STOPPING
Fig. 3.5 Control panel
F1 Circuit breaker
H1 Alternator charging indicator lamp
H6 Alarm lamp, shut-down switches
LV Loading valve
P1 Fuel level gauge
P3 Hour meter
PG Working pressure gauge
S1 ON-OFF switch
S2 Override/start switch
S4 Loading switch
To start the compressor:
1 Move ON/OFF switch (S1) to ”I” and check that alternator
charging indicator lamp (H1) and alarm lamp (H6) are
alight.
2 Press and keep override/start switch (S2) depressed to
override the shut-down circuit and to engage the starter
motor.
3 Alternator charging indicator lamp (H1) and alarm lamp
(H6) go out within approx. 10 seconds after starting,
depending on the operating conditions. Release
override/start switch (S2) as soon as both lamps (H1 and
H6) are out.
If alarm lamp (H6) does not go out within 10 seconds from
starting, stop the engine at once and inspect its lubricating
system.
Wait a few minutes between each starting attempt.
If the engine fails to start three times, consult the Engine
Operation Manual to localise the cause and remedy.
For starting in extremely cold conditions, consult the
Engine Operation Manual.
4 Run the engine a few minutes at no-load to warm up.
During this period, check the pressure on gauge (PG).
5 When the engine is running smoothly, press loading valve
(LV) or loading switch (S4) and release as soon as
pressure starts building up.
6 When the unloading pressure shows on gauge (PG), the
unloader has unloaded the compressor.
7 Open the air outlet valve(s) (AV).
To stop the compressor:
1 Close the air outlet valve(s) (AV) and run the compressor
unloaded for some minutes.
2 Move ON/OFF switch (S1) to ”0”.
3 Fill the fuel tank at the end of each day’s operation. This
prevents moisture from condensing on the inside of the
tank and contaminating the fuel with water.
If necessary, the compressor can be stopped by
operating the engine’s manual stop lever (ML).

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