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OPERATING THE COMPRESSOR
PREVENT LOW LOADS
Low loads may lead to:
High oil consumption: prolonged no-load/low
load operation of the engine may cause it to blue/
grey smoke at low rpm with an associated increase
in oil consumption.
Low combustion temperature: this will result in
insufficiently burned fuel, which will cause
diluting of the lube oil. Also, unburned fuel and
lube oil can enter the exhaust manifold and
eventually leak out through joints in the exhaust
manifold.
Risk for fire.
Reduce low load periods to a minimum.
It is recommended that a unit is always used with a
load 30% of nominal. Actions should be taken if due
to circumstances this minimum load capacity cannot
be obtained.
Please note that when a failure occurs and is deemed
due to low load operation, repair is not covered by
warranty!
BEFORE STARTING
Preparing the battery for operation
1 Check the level of electrolyte in the battery.
Ensure that the electrode plates are submerged in
the electrolyte and that the level of the fluid is
within the markings on the battery.
2 Ensure that the battery is firmly secured to the
battery cradle. Do not over-tighten the cradle
clamps as this can damage the battery.
3 Clean the battery and all related equipment before
use.
4 Fit the clamp for the positive terminal before
fitting the clamp for the negative terminal.
5 Apply petroleum jelly on the terminal or fitted
cable clamps.
Overall checks
1. Before initial start-up, prepare battery for
operation if not already done. Also see section
Recharging a battery.
2. With the compressor standing level, check the
level of the engine oil. Add oil, if necessary, up to
the upper mark on the dipstick. See section
Engine oil level check.
3. Check the level of the compressor oil. Add oil if
necessary. See section Compressor oil level
check.
4. Check the coolant level at the level gauge on the
radiator. If necessary top up with coolant. See
section Topping up of coolant.
5. Check that the fuel tank contains sufficient diesel
fuel. Top up, if necessary. For priming the engine,
the fuel must be electrically pumped up by
holding the start switch in the "preheat" position,
for maximum 20 seconds. If necessary, return to
"0" position and repeat. See further starting
instructions.
6. Drain leaking fluid from the frame.
7. Check the air filter vacuum indicators (if present).
If the yellow piston reaches the red marked
service range, have the filter element replaced.
After replacing, reset the indicator by pushing the
reset button.
8. Press vacuator valves of the air filter to remove
dust.
9. Open air outlet valve to allow air flow to the
atmosphere.
For more info, please contact your Atlas
Copco Service Center.
Follow the relevant safety instructions
during battery use according to section
Specific safety precautions before
working on or using the battery.
Incorrect use of the battery can lead to
serious injury and damage to
surrounding equipment.
It is suggested to use the prescribed
battery for the engine of the unit. While
changing the battery, ensure that a
battery of same capacity is selected.
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