Assessments - 4, GPA: 4.5
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3. Pressure gauge bad. 4. Pressure switch turns the motor OFF too soon. 1. Air leaks in tanks or delivery pipes. 2. Drain valve open. 3. Air filter clogged. 4. Leaking check valve. 5. Pressure relief valve releasing below 120 PSI. 6. Gaskets leaking. 7. Worn rings. 8. Pressure switch turns the motor OFF too soon. 1. Improper oil level. 2. Air filter clogged. 3. Piston assembly loose. 1. Pressure switch adjusted too high. 2. Faulty pressure switch, unit is trying to overpressure the tank. 3. Faulty pressure relief valve. 1. Inspect keys and setscrews. Replace or tighten if necessary. 2. Adjust fan cover mounting position, tighten fan, or shim fan cover. 1. Adjust pressure regulator, if no improvement, inspect regulator for leaks or replace. 2. Check air hoses and all connections for leaks (see Page 21). 3. Replace the pressure gauge. 4. Adjust the pressure switch (see Page 22) 1. Check air tanks, pipes and all connections for leaks (see Page 21). 2. Close drain valve. 3. Inspect and clean air filter. 4. Repair the check valve (see Page 20). 5. Replace pressure relief valve. 6. Check gaskets on cylinder head assembly, repair or replace as needed. 7. Inspect and replace pump piston rings. 8. Adjust the pressure switch (see Page 22). 1. Check oil level and add oil (see Page 9). 2. Inspect and clean air filter. 3. Inspect and repair piston and connecting rod. 1. Adjust the pressure switch (see Page 22) 2. Turn compressor OFF, unplug from power supply, and empty tank. DO NOT USE until switch is replaced. 3. Relief valve is relieving pressure too early. Replace pressure relief valve. Model G0466/G0469 Air Compressors -19 Symptom Possible Cause Air leaks from pressure 1. Faulty check valve. switch. 2. Faulty pressure switch. Air is dirty or has exces 1. Tank is not drained. sive moisture. 2. Delivery pipes are dirty. Possible Solution 1. Repair the check valve (see Page 20). 2. Replace pressure switch. 1. Open drain valve and make certain all the water is drained out. 2. Remove delivery pipes, clean out and replace. Changing Oil Change the oil in the air compressor pump after the initial 50 hours, or 30 days of use; and every 300 hours, or 3 months after the first oil change. Use compressor oil or ISO 100/SAE 30W, non-detergent type oil. To change the oil: 1. Unplug the air compressor and drain all the air from the tank. 2. Place a container to catch the oil under the oil sight glass. 3. Use a box end wrench or a socket wrench to remove the oil sight glass shown in Figure 13. Figure 13.Oil sight glass. Oil Fill Plug Oil Sight Glass 4. Tip the compressor to drain all of the oil from the crank case. 5. Replace the oil sight glass and remove the fill plug shown in Figure 13. 6. Fill the crank case with oil until the oil level is in the center of the sight glass, then replace the oil fill plug. Check Valve The diaphragm and O-ring in the check valve can become damaged, twisted, or dirty and cause the check valve or pressure switch to leak air. To fix the check valve: 1. Unplug the air compressor and drain all the air from the tank. 2. Remove the cap from the check valve (see Figure 14). Cap Figure 14. Check valve. -20- Model G0466/G0469 Air Compressors 3. Inspect the O-ring and diaphragm (Figure 15) for damage and dirt. Fixing Air Leaks Diaphragm O-ring Figure 15.Check valve diaphragm and spring. 4. Replace any damaged parts and clean any dirt off of the diaphragm and O- ring. 5. Re-assemble the check valve. Make sure the diaphragm presses squarely against the air supply tube opening. Air leaks will cause low air output and increase the time the compressor must run. To find air leaks: 1. Turn the compressor OFF when the tank is fully pressurized and unplug the compressor. 2. Listen for the sound of air to find fittings that may be leaking. 3. Spray the suspected air leak with a soap and water solution. If you see air bubbles, you have found your leak. To fix air leaking around fitting threads: 1. Unplug the air compressor and drain all the air from the tank. 2. Unscrew the fitting that is leaking. Clean and wrap teflon tape and/or spread pipe dope on the threads. 3. Re-install the fitting to the compressor. To fix air leaking through a valve: 1. Unplug the air compressor and drain all the air from the tank. 2. Remove the valve, clean it thoroughly, then re-install with teflon tape and/or pipe dope. 3. If the valve continues to leak, replace it with a new valve. Model G0466/G0469 Air Compressors -21 5. Turn the black plastic pressure adjust- Pressure Switch ment screw (Figure 17) a half turn The pressure switch has been factory set for the highest PSI that is safe for this compressor. The pressure switch ensures the compressor will shut OFF when the air tank reaches maximum PSI. NOTICE This air compressor has been factory set to turn ON and OFF at the proper PSI range. Only attempt to adjust the pressure regulator if your air compressor does not reach, or pressurizes beyond the proper PSI level. To adjust the pressure s...
Este manual também é adequado para os modelos :equipamento de bombagem - G0469 (2.3 mb)