SGS SC90B - User Manual

Questions and Answers

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Nathan BanksAug 3, 2025
Why is my SGS SC90B motor unable to run, running slow, or getting hot?
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  Heather WilliamsAug 3, 2025
  There are several potential reasons why your SGS Air Compressor motor might be malfunctioning: * There may be a fault in the line or insufficient voltage, so check the line. * The power wire might be too thin or long, in which case you should replace the wire. * There could be a fault in the pressure switch, requiring repair or replacement. * The motor itself might be faulty, also requiring repair or replacement. * The main compressor could be sticking, which needs to be checked and repaired.
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kleinangelaAug 9, 2025
What to do if my SGS Air Compressor has pressure insufficient or discharge capacity decreased?
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  jared90Aug 9, 2025
  If your SGS Air Compressor has insufficient pressure or decreased discharge capacity, consider the following: * Check and remedy if the motor is running too slow. * Clean or replace the cartridge if the air filter is choked up. * Check and adjust if there is leakage of safety valve. * Check and repair if there is leakage of discharge pipe. * Check and replace if the sealing gasket is damaged. * Replace and clean if the valve plate is damaged, stuck, or has carbon build up. * Repair or replace if the piston ring and cylinder are worn or damaged.
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Jennifer Taylor PhDAug 15, 2025
Why is my SGS SC90B Air Compressor shaking or making abnormal noise?
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  bwilsonAug 15, 2025
  Shaking or abnormal noise in your SGS Air Compressor can be attributed to several factors: * A connecting part might be loose; check and retighten it. * There could be a foreign body in the main compressor; check and clean it away. * The piston might be knocking the valve seat; replace it with a thicker paper gasket. * Moving parts might be seriously worn; consider repair or replacement.
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denisedavisAug 21, 2025
What causes excessive oil consumption in my SGS SC90B Air Compressor?
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  lhendersonAug 21, 2025
  Excessive oil consumption in your SGS Air Compressor can stem from: * The oil level being too high; keep the level within the set range. * A choked up breather pipe; check and clean it. * Worn or damaged piston ring and cylinder; repair or replace them.
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Catherine PearsonAug 27, 2025
How to fix sticking of main compressor in my SGS Air Compressor?
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  Michael VaughnAug 27, 2025
  Sticking of the main compressor in your SGS Air Compressor can be caused by: * Moving parts burnt due to insufficient oil. Check the crankshaft, bearing, connecting rod, piston, piston ring, etc., and replace if necessary. * Moving parts damaged or stuck by a foreign body. Check the crankshaft, bearing, connecting rod, piston, piston ring, etc., and replace if necessary.