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TROUBLES AND REMEDIES 

 

 

Trouble

 

 

Possible causes

 

 

Remedies

 

Motor unable to run 
or running slow 

 Fault in line, or voltage insufficient 

 Power wire too thin or too long 

 Fault in pressure switch 

 Fault in motor 

 Sticking of main compressor 

 The inner thermal protector on motor cut off 

 
 

 Check the line 

 Replace the wire 

 Repair or replace 

 Repair or replace 

 Check and repair 

  Compressor works too hard; turn off 

the power to cool down the motor for 10-
15 minutes. 

Sticking of main 
compressor 

 Moving parts burnt 

 Moving parts damaged, or stuck by foreign body 

Check crankshaft, bearing, connecting 
rod, piston, piston ring, etc. and replace 
if necessary 

Excessive vibration 
or abnormal noise 

 Connecting part loose 

Foreign body got into main compressor 

 Piston knocking valve seat 

 Moving parts seriously worn 

 Check and re-tighten 

 Check and clean away 

 Replace with thicker paper gasket 

 Repair or replace 

Pressure insufficient 
or discharge 
capacity decreased 

 Motor running too slow 

 Air filter choked up 

 Leakage of safety valve 

 Leakage of discharge pipe 

 Sealing gasket damaged 

Valve plate damaged, carbon build up or stuck 

 Piston ring and cylinder worn or damaged 

 Check and remedy 

 Clean or replace the  cartridge 

 Check and adjust 

 Check and repair 

 Check and replace 

 Replace and clean 

 Repair or replace 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 
 
 
 
 
 
 
 

Summary of Contents for MCFRC241

Page 1: ...Direct Drive Oil free Silent Air Compressor MCFRC241 242 243...

Page 2: ...ase should be included with the returned product This warranty does not apply to damage that is determined to be from repairs made or attempted by anyone other than authorized agents misuse alteration...

Page 3: ...paint varnish petrol etc or flammable gases and dust of an explosive nature Guard Against Electric Shock Do not expose your compressor to rain or use in damp or wet locations Beware Children and Pets...

Page 4: ...ing used Always check that the output of the compressor does not exceed the maximum pressure for any attached tool or accessory Repairs should only be carried out by qualified persons using original s...

Page 5: ...ank is empty when not in use before servicing lubricating or making adjustments to air lines and when changing accessories such as blades bits nails and cutters on air tools Avoid Unintentional Starti...

Page 6: ...re gauge 8 Drain cock 9 Wheel 10 Air Tank 11 Anti vibration foot 12 Non return valve 13 Solenoid valve 14 Air filter Note Fittings may differ from those shown above ASSEMBLY This air compressor requir...

Page 7: ...the power lead to the mains Start the compressor by pulling on the red knob Note Output fittings may differ from those shown Warning Use the red knob to turn the unit on and off not the mains switch...

Page 8: ...falling pressure in the tank and the motor will start without any warning The maximum and minimum pressures are factory set and should not be altered You can utilize either the direct outlet and or th...

Page 9: ...Check for air leaks Weekly 1 Remove air filter element and clean or replace as required Monthly 1 Inspect non return valve clean or replace as required Caution ensure that air the tank is empty for t...

Page 10: ...body Check crankshaft bearing connecting rod piston piston ring etc and replace if necessary Excessive vibration or abnormal noise Connecting part loose Foreign body got into main compressor Piston k...

Page 11: ...EXPLOADED VIEW...

Page 12: ...ELIVERY PIPE PC 1 11 CYLINDER SET 2 38 RELEASE PIPE PC 1 12 PISTON COVER PC 2 39 NON RETURN VALVE PC 1 13 PISTON RING PC 2 40 WHEEL AXLE PC 2 14 CONCORD PC 2 41 WHEEL PC 2 15 CRANKCASE PC 2 42 TANK FO...

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