SGS SC24L User manual

FOR YOUR SAFETY
PLEASE READ THESE INSTRUCTIONS CAREFULLY
AND RETAIN THEM FOR FUTURE USE.
OWNER’S MANUAL
SC24L
AIR COMPRESSOR

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1. Outlet Valve
2. Safety valve
3. One-way Valve
4. Wheel
5. Air tank
6. Pump
7. Respirator
8. Fan cover
9. Muffler
10. Pressure gauge
11. Pressure switch
MAIN COMPONENTS 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.
Model SC24L
Power 0.75kW / 1.5HP
Voltage 230 V @ 50 Hz
Motor Poles 2 P
Rated Speed 2850 rpm
Delivery 4.2/ 5.5 CFM
Discharge Pressure 115PSI / 0.8MPa
Tank Capacity 24 L
Dimensions 580 x 255 x 580 mm
Net Weight 23 kg
Noise Specification LWA 97dB
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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, al-
ways use eye protection such as goggles, and make sure that other people
in the work area are also using eye protection. Eye protectors must pro-
vide 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 moving
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.
KEEP VISITORS/CHILDREN AWAY: Do not allow visitors/children to han-
dle 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.
SAFETY PRECAUTIONS
DO NOT TOUCH HOT SURFACES: During operation, the motor, con-
nections, 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 damage 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 medica-
tion that makes you drowsy.
DISCONNECT THE AIR COMPRESSOR: Always disconnect the air com-
pressor 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.
SAFETY PRECAUTIONS
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AVOID UNINTENTIONAL STARTING: When connecting the air compres-
sor to the mains supply make sure the red button on top of the air com-
pressor is in the OFF (down) position.
STORE THE AIR COMPRESSOR PROPERLY: When not in use the air com-
pressor 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
damaged in any way, have it repaired by a qualified engineer.
DO NOT USE EXTENSION LEADS: Using extension leads can cause your
compressor motor to burn out. Only use extension hoses.
DISPOSAL INFORMATION: The air compressor should be disposed of in
a safe an environmentally friendly manner. Contact your local Council for
disposal assistance.
DO NOT WELD TO THE PRESSURE VESSEL: Do not weld or modify the
pressure vessel in any manner.
SAFETY PRECAUTIONS 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.
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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.
4. If not, remove the breather plug
and fill with compressor oil (our
part code SO2068)
OPERATION
1. Attach a hose to the quick release coupler on the compressor 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
compressor will start again when the tank pressure drops.
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OPERATION TROUBLE SHOOTING
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.
4. Set the regulator to the correct
pressure for the air tool (check
in the air tool manual). The
output pressure is shown on
the right gauge. The left hand
gauge shows the tank pressure.
SWITCHING OFF
Trouble Possible causes Remedies
Motor not running, (1) Fault in line, or voltage insucient (1) Check the line
Running too slow, (2) Power wire too thin or too long (2) Replace the wire
or geng hot (3) Fault in pressure switch (3) Repair or replace
(4) Fault in motor (4) Repair or replace
(5) Scking of main compressor (5) Check and repair
Scking of
main compressor
(1) Moving parts burnt due to insuf-
cient oil
Check cranksha, bearing,
connecng rod, piston,
piston ring, etc., replace if
necessary.
(2) Moving parts damaged/ or stuck
by foreign body.
Shakeing or abnormal
noise
(1) Connecng part loose (1) Check and reghten
(2) Foreign body got into main com-
pressor
(2) Check and clean away
(3) Piston knocking valve seat (3) Replace with thicker
paper gasket
(4) Moving parts worn (4) Repair or replace
Pressure insucient (1) Motor running too slow (1) Check and remedy
(2) Air lter chocked up (2) Clean or replace the
cartridge
(3) Leakage of safety valve (3) Check and adjust
(4) Leakage of discharge pipe (4) Check and repair
(5) Sealing gasket damaged (5) Check and replace
(6) Valve plate damaged, carbon
buildup or stuck.
(6) Replace and clean
(7) Piston ring and cylinder worn or
damaged
(7) Repair or replace
Oil consumpon
excessive
(1) Oil level too high (1) Keep the level within
set range
(2) Breath pipe chocked up (2) Check and clean
(3) Piston ring and cylinder worn or
damaged
(3) Repair or replace
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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 manufacturing process - don’t alter it carelessly.
2. As soon as motor switched off the compressed air in the discharge pipe
should be released through the release valve under the switch. This is
the necessary condition for restart, or the motor will be damaged. The
rated pressure can be adjusted by turning the adjusting bolt of the
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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1. Put the cover off first and put on the breath pipe and air filter before
the compressor run.
2. Never unscrew any connecting part when the tank is in pressure condi-
tion.
3. Never disassemble any electrical part before disconnecting the plug.
4. Never adjust the safety valve carelessly.
5. Never use the compressor in place where voltage is too low or too high.
6. Never disconnect the plug to stop compressor, set the switch knob in
position off instead.
7. If the release valve doesn’t work as motor stopped, find the cause im-
mediately so as not to damage motor.
8. Lubricating oil must be clean, oil level should be kept in the score of oil
ruler.
9. Disconnect the plug to cut off power supply and open the outlet valve
CAUTIONS 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. Clean crankcase and renew lubricating oil
after the first 10 working hours.
2. Clean the oil level after every 20 working
hours, and replenish if necessary.
3. Open drain cock under the tank toexhaust
condensate after every 60 working hours.
4. Clean crankcase and renew the oil, clean
air filter, and check safety valve and pres-
sure gauge after every 120 working hours.
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REPLACEMENT PARTS DIAGRAM No Part Qty Part No No Part Qty Part No
1 Bolt M6×35 4 903451 35 Bearing 6202-RS 1 904965
2 Spring washer 6 4 905153 36 Motor bracket 1 905179
3 Air filter 1 905154 37 Spring washer 5 4 905180
4 Cylinder head 1 905155 38 Bolt M5×85 4 904970
5 O cycle 1 905156 39 Tooth Washers 1 905181
6 Valve plate subassembly 1 905157 40 Spring washer 4 1 905182
7 Valve slice δ0.3 1 905158 41 Screw M4×10 1 903744
8 Valve gasket δ0.8 1 905159 42 Fan 1 905183
9 Locating pin δ3×6 2 904942 43 Circlip δ14 1 904950
10 Cylinder δ48 1 905160 44 Fan cover soleplate 1 905184
11 Bolt M6×20 4 904201 45 Right-angle connecter Rp3/8 1 904939
12 Cylinder gasket δ1 1 905161 46 Bolt M5×14 4 901514
13 Piston ring δ48×2 2 905162 47 Fan cover 1 905185
14 Oil scraper ring δ48×3 1 905163 48 Bolt ST3.9×12 4 905052
15 Piston δ48×35.5 1 905164 49 Coupler 1 905186
16 Circlip δ14 2 904950 50 Pressure switch 1 905187
17 Connecting rod 1 905165 51 Safety valve 1 905188
18 Crankcase 1 905166 52 Pressure gauge 50 1 905189
19 Crank 1 905167 53 Nut Rp3/8 1 905129
20 Bolt M8×20 1 900393 54 Power cord 1 905190
21 Rubber gasket 1 905168 55 One-way valve 1 905191
22 Breath pipe 1 905169 56 Discharge pipe 1 905192
23 Ring δ18.3×δ2.65 2 905170 57 Release pipe 1 905193
24 Crankcase cover 1 905171 58 Handle 1 905194
25 Screw M5×14 4 904955 59 Tank 1 905195
26 Oil leveler 1 905172 60 Handle plug 1 905196
27 Piston pin δ12×39.5 1 905173 61 Bolt M8×25 4 902525
28 Nut M8 1 901995 62 Nut 8 4 904987
29 Tooth washer 8 1 905174 63 Rubber Wheel 2 905197
30 Capacitance 1 905175 64 Axle Set 2 905198
31 Sealing ring 17×35×7 1 905176 65 Washer foot 1 905199
32 Bearing 6003-RS 1 904962 66 Drain cock 1/4” 1 905200
33 Rotor 1 905177 67 Thermal protector 1 905201
34 Stator subassembly 1 905178
FOR YOUR SAFETY
PLEASE READ THESE INSTRUCTIONS CAREFULLY
AND RETAIN THEM FOR FUTURE USE.

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
24th MARCH 2019
SGS Engineering (UK) Ltd
SGS Engineering (UK) Ltd
West Side Park
Raynesway
Derby, DE21 7AZ
Air Compressor
SC24L
2014/30/EU Electromagnetic Compatibility Directive
2006/42/EC Machinery Directive
2009/105/EC Simple Pressure Vessel Directive
2000/14/EC Noise Emissions Directive (amended by 2005/88/EC)
2002/95/EC Restriction of Hazardous Substances
EN 55014-1:2006/+A1:2009/+A2:2011
EN 55014-2:1997/A1:2001/+A2:2008
EN61000-3-2:2014 EN61000-3-3:2013
APPLICATION OF EC COUNCIL DIRECTIVES / STANDARD: