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CR Contractor with electrical motor
1. Check the oil level, which must be near the top of the red circle of the sight-glass. The minimum level
is the lower part of the red circle.
2. Set the pilot valve in the unload position by turning the red handle 90 degrees. Refer to Adjustment of
pilot valve.
3. Attach the air lines to the air outlets.
4. Plug in and switch on the voltage at the main circuit breaker.
Warning:
Never move the compressor after plugging it in.
5. Move the switch to position I or turn switch (S1) to position I.
6. Open the outlet valves (AV1 and AV2).
7. Set the pilot valve in the load position by turning the red handle 90 degrees. Refer to Adjustment of
pilot valve.
8. Turn the regulating knob of the pressure regulator clockwise or counter-clockwise to increase or
decrease the pressure at the outlet of the pressure regulator.
Regularly drain condensate.
CR Contractor with gas engine
1. On CR check the oil level, which must be near the top of the red circle of the sight-glass. The minimum
level is the lower part of the red circle.
2. Check the engine oil level as follows:
• Remove the oil filler cap and wipe the dipstick clean.
• Insert the dipstick into the filler neck, but do not screw it in.
• The oil level must show between the minimum and maximum marks on the dipstick.
3. Fill the fuel tank with unleaded or low-leaded gasoline.
4. Start the engine. Refer to the engine “Owner’s manual”.
5. Attach the air lines to the air outlets.
6. Open the outlet valves (AV1/2).
7. Set the pilot valve in the load position by turning the red handle 90 degrees. Refer to Adjustment of
pilot valve.
8. Turn the regulating knob of the pressure regulator clockwise or counter-clockwise to increase or
decrease the pressure at the outlet of the pressure regulator.
Regularly drain condensate.