SGS SC50H User manual

FOR YOUR SAFETY
PLEASE READ THESE INSTRUCTIONS CAREFULLY
AND RETAIN THEM FOR FUTURE USE.
OWNER’S MANUAL
SC50H
AIR COMPRESSOR

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MAIN COMPONENTS
1. Main compressor
2. Pressure switch
3. Outlet Valve
4. Regulating Valve
5. Pressure gauge
6. One-way Valve
7. Drain cock
8. Wheels
9. Discharge pipe
10. Air tank resevoir
11. Safety valve
12. Fan cover
SPECIFICATION
LIST OF GOODS
ITEM LIST OF GOODS QTY
1 Air Compressor 1
2 Air Filter 1
3 Breather Pipe 1
4 Wheel 2
5 Wheel Axis 2
6 Spare Rubber Gasket 1 or 2
7 Instruction Manual 1
ITEM DATA
Model SC50H
Power 1.5 kW / 2.5 HP
Voltage 230 V
Frequency 50 Hz
Motor Poles 2 P
Rated Speed 2850 rpm
Current 7.5 A
Delivery 9.6 CFM
Discharge Pressure 115 PSI / 0.8 MPa
Restart Pressure 70 PSI / 0.5 MPa
Tank Capacity 50 L
Dimensions 770x330x730 mm
Air Outlet Size 1/4”
Net Weight 38 kg
Noise Information LWA 97 dB
12.
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TRAINING: Prior to use, all users must become familiar with the instruc-
tions given in this manual. In particular, become familiar with the ON/OFF
control for stopping the compressor in the event of an emergency.
ALWAYS USE EYE PROTECTION: When operating the air compressor,
always use eye protection such as goggles, and make sure that other peo-
ple in the work area are also using eye protection. Eye protectors must
provide protection from flying particles both from the front and from the
side.
PROTECT YOUR HEARING: Hearing protection should be worn when
operating this compressor, use ear plugs or ear defenders.
NEVER TOUCH MOVING PARTS: Never place your hand near any mov-
ing parts on the air compressor or operate with the covers removed.
PROTECT YOUR SELF AGAINST ELECTRIC SHOCK: Never operate the
air compressor in wet or damp locations.
DRESS PROPERLY: Loose clothing or jewellery may be caught in moving
parts. Always tie long hair back, and wear suitable clothing.
SAFETY PRECAUTIONS
WARNING SYMBOLS
READ THIS INSTRUCTION MANUAL CARE-
FULLY BEFORE OPERATING OR ADJUSTING
THE COMPRESSOR.
Risk of electric shock. The compressor must
be disconnected from the mains supply before
maintenance or removing any covers. Do not
use in a damp environment.
Risk of accidental start-up. The compressor
could start automatically in the event of a
power cut and subsequent reset. Do not carry
the compressor while it is connected to the
power source, or when the tank is filled with
compressed air.
This compressor contains surfaces which may
reach a high temperature during operation.
Never operate with the motor housing re-
moved.
Air and condensation water can burst from the
compressor when the drain plug is removed.
Wear a safety goggles and ear protectors
when using this compressor.
This compressor produces a high sound level
during operation. Ear protection should be
worn.
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DISCONNECT THE AIR COMPRESSOR: Always disconnect the air compressor
from the mains power supply and decompress before performing maintenance,
changing any parts and when not in use.
MAINS POWER CABLE PRECAUTIONS: Never pull on the cable when removing
the plug from the mains socket, or lift the compressor by the mains cable.
AVOID UNINTENTIONAL STARTING: When connecting the air compressor to the
mains supply make sure the red button on top of the air compressor is in the OFF
(down) position.
STORE THE AIR COMPRESSOR PROPERLY: When not in use the air compressor
should be stored in a secure, dry place out of the reach of children. Always lock up
the storage area.
MAINTAIN THE AIR COMPRESSOR WITH CARE: If the air compressor is dam-
aged in any way, have it repaired by a qualified engineer.
DO NOT USE EXTENSION LEADS: Using extension leads can cause your com-
pressor motor to burn out. Only use extension hoses.
DO NOT WELD TO THE PRESSURE VESSEL
Do not weld or modify the pressure vessel in any manner.
SAFETY PRECAUTIONS
KEEP VISITORS/CHILDREN AWAY: Do not allow visitors/children to handle the
air compressor or attachments and ensure that any people in the work area are
suitably dressed.
KEEP THE WORK AREA CLEAN: Cluttered areas mean accidents, so clear the
work area of all unnecessary tools, debris and furniture.
DO NOT TOUCH HOT SURFACES: During operation, the motor, connections,
compressor body, cylinder head and tubes may get hot, do not touch.
DO NOT DIRECT AN AIR STREAM AT THE BODY: Do not direct the air stream at
people or animals, as injury may result. Compressed air can cause soft tissue dam-
age and propel dirt and other particles at high speed.
BREATHING AIR: This compressor should not be used to supply breathing quality
air. Never use it as breathing apparatus.
STAY ALERT: Watch what you are doing, use common sense, and do not operate
the air compressor when you are tired. The air compressor should not be used if
you are under the influence of alcohol, drugs or any medication that makes you
drowsy.
DISPOSAL INFORMATION
The air compressor should be disposed of in a safe an environmentally friendly
manner. Contact your local Council for disposal assistance.
SAFETY PRECAUTIONS
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ASSEMBLY
Attach the wheels to the compressor.
Remove the travel bung.
Screw in the air filter.
Remove the travel bung and fit the oil
breather pipe.
BEFORE USE
1. Set the ON/OFF switch to the-
OFF position (pushed down).
2. Make sure that the compressor
is on level ground and check that
the oil level is half way up the oil
sight glass
3. If not, remove the breather plug
and fill with compressor oil (our
part code SO2068)

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OPERATION
1. Attach a hose to the quick re-
lease coupler on the compres-
sor and to an air tool.
2. Turn the compressor on by
lifting the on/off button. The
compressor will operate until
the tank is fully pressurised
before switching off. The com-
pressor will start again when
the tank pressure drops.
3. Set the regulator to the cor-
rect pressure for the air tool
(check in the air tool manual).
The user-set output pressure is
shown on the left gauge. The
right hand gauge shows the
tank pressure.
SWITCHING OFF
1. Push down on the on/off switch
to turn the compressor off.
2. Operate the air tool to depres-
surise the air hose.
3. Disconnect the tool from the
hose.
4. Open the drain cock to remove
any condensation from the
compressor.
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1. The compressor is controlled by a pressure switch. It can be stopped
automatically as the pressure increases to the maximum and restarted
as pressure decreases to the minimum. The rated pressure has been
adjusted during the manufactuv process - don’t alter it carelessly.
PRESSURE ADJUSTMENT THERMAL RESET SWITCH
This compressor has a thermal overload device.
If the motor gets too hot, the thermal overload device cuts the power
which prevents damage to the motor.
If the thermal overload device operates, let the motor cool down for 5
minutes and push the reset button.
If you start the compressor and the overload cutout operates again, stop
the compressor and disconnect from the power supply and have your
compressor examined by a qualified service agent.
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TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE ACTION
Motor unable to run,
running slow or getting
hot
1. Fault in line or insufficient
voltage
2. Power wire too thin or long
3. Fault in pressure switch
4. Fault in motor
5. Sticking of main compressor
1. Check the line
2. Replace the wire
3. Repair or replace
4. Repair or replace
5. Check and repair
Sticking of main com-
pressor
1. Moving parts burnt due to
insufficient oil
2. Moving parts damaged or
stuck by a foreign body
Check crankshaft, bearing,
connecting rod, piston, piston
ring, etc. and replace if
necessary
Shaking or abnormal
noise
1. Connecting part loose
2. Foreign body in the main
compressor
3. Piston knocking the valve seat
4. Moving parts seriously worn
1. Check and retighten
2. Check and clean away
3. Replace with thicker paper
gasket
4. Repair or replace
Pressure insufficient
or discharge capacity
decreased
1. Motor running too slow
2. Air filter choked up
3. Leakage of safety valve
4. Leakage of discharge pipe
5. Sealing gasket damaged
6. Valve plate damaged, stuck or
carbon build up
7. Piston ring and cylinder worn
or damaged
1. Check and remedy
2. Clean or replace the
cartridge
3. Check and adjust
4. Check and repair
5. Check and replace
6. Replace and clean
7. Repair or replace
Excessive oil consump-
tion
1. Oil level too high
2. Breather pipe choked up
3. Piston ring and cylinder worn
or damaged
1. Keep the level within set
range
2. Check and clean
3. Repair or replace
REPLACEMENT PARTS DIAGRAM
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PARTS LIST
No. Part No Part No. Part No Part
1904879 Bolt M8x110 25 900107 Manifold
2901602 Cylinder head 26 900071 Release pipe
3903717 Cylinder head gasket 27 900073 Safety valve
4901787 Valve plate 28 901995 Nut 8
5900080 Valve gasket 29 900114 Washer foot
6901746 Cylinder 30 902525 Bolt M8x25
7900109 Cylinder gasket 31 903393 Washer 8
8901778 Piston ring 32 900070 Drain cock
9901881 Piston 33 900118 Wheel
10 905294 Cir-clip 34 901287 Air tank
11 905295 Connecting rod 35 900110 Discharge pipe
12 905296 Crankcase 36 901886 Motor
13 905297 Crank 37 905301 Bearing 5202 RS
14 903627 Bolt M8x22-right 38 905302 Motor bracket
15 900083 Rubber gasket 39 903830 Bolt M5x105
16 900069 Breather pipe 40 900078 Fan
17 905298 Crank case cover 41 905303 Cir-clip
18 904955 Screw M5x14 42 905304 Bearing 5204 RS
19 905299 Oil leveller washer 43 905305 Sealing ring
20 905300 Oil leveller 44 901383 Capacitor
21 900081 Non-Return Valve 45 901995 Nut M8
22 900666 Pressure switch 46 905306 Piston pin
23 900122 Pressure gauge 47 900076 Fan filter
24 900091 Outlet valve 48 900117 Handhold
1. Disconnect power source then release all pressure from the system be-
fore attempting to install, service, relocate or perform any maintenance.
2. Never unscrew any connecting part when the tank is pressurised.
3. Never disassemble any electrical part before disconnecting the plug.
4. Never adjust the safety valve carelessly.
5. Never use the compressor where voltage is too low or too high.
6. Never disconnect the plug to stop the compressor, set the switch knob
to the off position instead.
7. Lubricating oil must be clean and at the level indicated.
8. Clean crankcase and renew lubricating oil after the first 10 working
hours. Check the oil level after every 20 working hours, and replenish if
necessary.
CAUTIONS
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MAINTENANCE
CLEAN THE AIR FILTERS (MONTHLY)
The air filters must be examined monthly and
more often in dusty conditions:
1. Unscrew the filters from the compressor.
2. Remove the filter covers from the filters.
3. Clean the sponge and the filter cover
using a soft brush. If necessary, the filters
can be carefully cleaned in warm soapy
water. Rinse and let the filters dry com-
pletely before refitting.
4. Make sure that the filters and filter cov-
ers are replaced into position. If the
filters are damaged, you must replace
them.
CLEANING
1. Open drain cock under the tank to ex-
haust condensate after every use.
2. Clean the crankcase and renew the oil,
clean air filter, and check safety valve and
pressure gauge after every 120 working
hours.
EC Declaration of Conformity
This is an important document and should be retained
MANUFACTURER’S NAME:
TYPE OF EQUIPMENT:
PART NUMBER:
I, the undersigned, hereby declare that the equipment specied above con-
forms to the above European Communities Directive(s) and Standard(s).
PLACE:
DATE: (Signature)
Robert Wyatt
Company Secretary
Derby, UK
6th SEPT 2018
SGS Engineering (UK) Ltd
SGS Engineering (UK) Ltd
1 West Side Park
Raynesway
Derby, DE21 7AZ
Air compressor
SC24H/SC50H
EN 1012-1:2010
Rated voltage:
230VAC; 230VAC; 230VAC; 230VAC; 220-240VAC;
220-240VAC, 230VAC, 220-240VAC; 220-240VAC
Rated power: 2200W
Rated frequency:50Hz
Protection class: I
Degree of protection: IP20
Max. working pressure :
0.8 MPa; 0.8 MPa; 1.0 MPa; 0.8 MPa; 1.0 MPa; 1.0
MPa; 1.0 MPa; 1.0 MPa; 1.0 MPa
Remark: Only used indoors
PARAMETERS:
TESTED ACCORDING TO: