SGS SC50V User manual

FOR YOUR SAFETY
PLEASE READ THESE INSTRUCTIONS CAREFULLY
AND RETAIN THEM FOR FUTURE USE.
OWNER’S MANUAL
SC50V
AIR COMPRESSOR

PAGE 3
PAGE 2
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. Air tank
10. Safety valve
11. Fan cover
Model SC50V
Power 2.2Kw/3HP
Voltage 230V/ 50Hz
Motor Poles 2P
Rated Speed 2850 r/min
Delivery 14.6 CFM
Discharge Pressure 115PSI / 0.8MPa
Tank Capacity 50L
Dimensions 77×38×75cm
Net Weight 43.2 kg
Air Outlet Size 1/4”
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.
MAIN COMPONENTS
WWW.SGS-ENGINEERING.COM

PAGE 5
PAGE 4
TRAINING: Prior to use, all users must become familiar with the
instructions 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 compres-
sor, always use eye protection such as goggles, and make sure that
other people 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 moving parts on the air compressor or operate with the covers
removed.
PROTECT YOUR SELF AGAINST ELECTRIC SHOCK: Never oper-
ate 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
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. Com-
pressed 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 com-
pressor should not be used if you are under the influence of alcohol,
drugs or any medication that makes you drowsy.
SAFETY PRECAUTIONS
WWW.SGS-ENGINEERING.COM

PAGE 7
PAGE 6
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 compres-
sor 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 com-
pressor 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 SAFETY PRECAUTIONS
WWW.SGS-ENGINEERING.COM

PAGE 9
PAGE 8
ASSEMBLY
PREPARATION FOR STARTING
1. Before running the compressor remove
the plug and connect the breather pipe to
the oil-hole.
2. Screw both the air filters in either side
before starting the compressor.
3. Set the compressor in a clean, dry and
ventilated area.
4. Keep voltage within ±4% of the rated
value.
5. Keep the oil level in the red circle of
the oil glass sight window. You can pur-
chase compressor oil from our website at:
www.sgs-engineering.com
Use a spanner to attach the
wheels to the compressor.
Use the washers and spring
washer in the positions
shown.
Insert the support foot into
the position shown.
Check all nuts and bolts.
Make sure all loosened
parts are tightened before
starting.
WWW.SGS-ENGINEERING.COM

PAGE 11
PAGE 10
PREPARATION FOR STARTING
6. Open the outlet valve, set the
power switch knob to position “on”
and let the compressor run for 10
minutes with no load to ensure the
moving parts are lubricated before
regular service.
PRESSURE GAUGES
There are two pressure gauges on the
compressor.
1. The pressure gauge on the RIGHT
shows the current pressure in the
reservoir tank.
2. The pressure gauge on
the LEFT shows the ‘user set’ outlet
pressure. This can be adjusted using
the regulator.
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. As soon as the motor is switched off
the compressed air in the discharge pipe should be released
through the release valve under the switch. This is a necessary
condition before restarting or the motor will be damaged. The
rated pressure can be altered by turning the adjusting screw.
OPERATION AND ADJUSTMENT
WWW.SGS-ENGINEERING.COM

PAGE 13
PAGE 12
OPERATION AND ADJUSTMENT
2. The output pressure of
compressed air can be regulated by
using the regulating valve. turn the
regulation valve knob clockwise to
increase the pressure.
3. When the running compressor
needs to be stopped set the
pressure switch in the off
position.
4. Always vent the compressor
after each use by turning the
regulator knob fully
anticlockwise.
OPERATION AND ADJUSTMENT
5. Once the compressor is
vented, remove any
condensation from inside the
tank by unscrewing the bleed
nipple.
WWW.SGS-ENGINEERING.COM

PAGE 15
PAGE 14
1. Before any maintenance operation stop
the air compressor, cut off the power
supply and discharge all air in the air
tank.
2. Clean crank case and renew lubricat-
ing oil after the first 10 working hours.
Check the oil level through the oil level
sightglass (1.) after every 20 working
hours and replenish if necessary- you can
replenish by unbolting the oil level sight-
glass, and draining off any old oil. (2.)
3. Have the safety valve and pressure
gauge checked by a certified repair cen-
tre every 6 months to ensure they are in
the correct working condition.
4. Make sure there is no rust on the air tank
and the air tank is not damaged.
5. Have the thickness of the air tank
checked by a certified repair centre
every year to ensure the tank thickness is
not less than 2.1mm.
MAINTENANCE MAINTENANCE
CLEAN THE AIR FILTERS (MONTHLY)
The air filters must be examined
monthly, more often in dusty condi-
tions:
1. Remove the filter covers from the
compressor.
2. Remove the filter covers from the
filters.
3. Remove the filters from the filter
covers.
4. Clean the sponge and both the
filters cover using a soft brush.If
necessary, the filters can be care-
fully cleaned in warm soapy water.
Rinse and let the filters dry com-
pletely before refitting.
5. Make sure that the filters and filter
covers are replaced into position. If
the filters are damaged, you must
WWW.SGS-ENGINEERING.COM

PAGE 17
PAGE 16
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 compres-
sor
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, pis-
ton 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
TROUBLESHOOTING
MAINTENANCE
CHECK THE NON-RETURN
VALVE (EVERY 6 MONTHS)
If the reservoir pressure
decreases for no apparent
reason, it is possible that the
non-return valve is leaking.
To check:
1. Make sure that the reservoir
is not under pressure and the
compressor is switched OFF.
2. Examine the non-return
valve, and replace the gasket
and valve if necessary.
THERMAL RESET SWITCH
There may be instances your compressor will overheat.
If it cuts out, this is a safety feature to protect you and your compres-
sor. Leave this compressor for a good while until you reset it.
If the compressor turns off again on re-set you should not keep
running it as it may be damaged and the system may be unsafe.
WWW.SGS-ENGINEERING.COM

REPLACEMENT PARTS DIAGRAM No. Part Qty Part No No. Part Qty Part No
1 Bolt M6x55 4 905225 38 Stator 1 905319
2 Cylinder head 1 900039 39 Rotor 1 905320
3 Cylinder head gasket 2 905307 40 Brearing 6202 1 904965
4 Valve plate 2 905308 41 Wave washer D35 1 905321
5 Valve plate gasket 2 905309 42 Switch scaleboard 1 905322
6 Valve clack 2 901578 43 Switch 1 905323
7 Seal 4 905310 44 Electrical cover 1 905324
8 Cylinder 2 901735 45 Guard 1 905325
9 Cylinder gasket 2 900050 46 Bolt M5x30 6 904046
10 Piston ring 4 905311 47 Fan 1 900043
11 Oil wreath 2 905312 48 Circlip 1 905215
12 Piston 2 900056 49 Cowling 1 900038
13 Piston pin 2 900057 50 Bolt ST4.8x16 5 905327
14 Circlip 4 905313 51 High pressure pipe 1 901724
15 Conncting rod 2 901227 52 Nut M8 4 901995
16 Rubber gasket 1 901245 53 High pressure pipe 1 900124
17 Crank case cover 1 902674 54 Bolt M8x25 4 903842
18 Bolt M5x16 6 904085 55 One-way valve 1 900061
19 Oil leveler gasket 1 905314 56 Axle 2 900119
20 Oil leveler 1 902148 57 Axle set 2 905328
21 Bolt M6x10 1 901925 58 Wheel 2 900152
22 O circlip φ5.6xφ1.8 1 905315 59 Receiver plug 2 900067
23 Hex bolt M8x22(left) 1 905080 60 Nut M10 2 901126
24 Crank 1 901824 61 Washer 4 905329
25 Crank case 1 902262 62 Drain plug 1 900070
26 Bolt M6x40 8 905316 63 Bolt M8x25 2 903842
27 Sealing ring 1 905317 64 Rubber foot 2 900114
28 Bearing 6204 1 905049 65 Nut M8 2 901995
29 Capacitor 1 905318 66 Nut 1 902684
30 Nut M8 2 901995 67 Support 1 905330
31 Capacitor 1 901223 68 Safety valve 1 900073
32 Guard 1 900046 69 Quick coupler 2 900091
33 Bolt M8x25 4 903842 70 Manometer 2 900122
34 Elbow 1 901119 71 Pressure switch 1 900066
35 Connector 1 901299 72 Plug line 1 900100
36 Elbow 1 901119 73 Rubber grip 1 905331
37 Air filter 2 900011
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 MAY 2019
SGS Engineering (UK) Ltd
SGS Engineering (UK) Ltd
West Side Park
Raynesway
Derby, DE21 7AZ
Air Compressor
SC50V / SC100V
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: