Dewalt D55140 Instruction Manual - Page 12

English Shut-down (Fig. 1) 1 Move On/Off switch (A) is in the OFF position. NOTE: If finished using compressor, follow Steps 2 - 6. NOTE: When the unit has been turned off, it is normal to hear a short hiss of air being released. 2. Turn regulator knob (D) counterclockwise until fully closed. Ensure regulated pressure gauge reads 0 PSI (0 kPa). 3. Remove hose and accessory. WARNING: Risk of unsafe operation. Firmly grasp air hose in hand when installing or disconnecting to prevent hose whip. 4. Drain the air tank, see Draining Air Tank under Maintenance. Ensure air tank pressure gauge reads 0 PSI (0 kPa). WARNING: Risk of bursting. Drain air tank daily. Water will condense in air tank. If not drained, water will corrode and weaken the air tank causing a risk of air tank rupture. 5. Allow the compressor to cool down. 6. Wipe air compressor clean and store in a safe, non-freezing area. MAINTENANCE The following procedures must be followed when maintenance or service is performed on the air compressor. 1. Ensure On/Off switch is in the OFF position. 2. Remove air compressor plug from outlet. 3. Drain air tank. 4. Allow air compressor to cool down before starting service. NOTE: All compressed air systems contain maintenance parts (e.g., oil, filters, separators) that are periodically replaced. These used parts may contain substances that are regulated and must be disposed of in accordance with local, state, and federal laws and regulations. NOTE: Take note of the positions and locations of parts during disassembly to make reassembly easier. NOTE: Any service operations not included in this section should be performed by a DEWALT factory service center or a DEWALT authorized service center. Maintenance Chart Procedure Before Each Use Daily or after each use Check safety valve X Drain air tank X Checking Safety Valve WARNING: Risk of bursting. If the safety valve does not work properly, over-pressurization may occur, causing air tank rupture or an explosion. Before starting compressor, pull the ring on the safety valve to make sure that the safety valve operates freely. If the valve is stuck or does not operate smoothly, it must be replaced with the same type of valve. Draining Air Tank (Fig. 1) WARNING: Risk of unsafe operation. Risk from noise. Air tanks contain high pressure air. Keep face and other body parts away from outlet of drain. Use safety glasses when draining as debris can be kicked up into face. Use ANSI S12.6 (S3.19) ear protection as air flow noise is loud when draining. NOTE: All compressed air systems generate condensate that accumulates in any drain point (e.g., tanks, filter, aftercoolers, dryers). This condensate contains lubricating oil and/or substances which may be regulated and must be disposed of in accordance with local, state, and federal laws and regulations. 1. Ensure On/Off switch (A) is in the OFF position. 12