SGS SC50VT User manual

FOR YOUR SAFETY
PLEASE READ THESE INSTRUCTIONS CAREFULLY
AND RETAIN THEM FOR FUTURE USE.
OWNER’S MANUAL
SC50VT
AIR COMPRESSOR

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1. Button Switch
2. Outlet Valve
3. Air Tank
4. Wheels
5. Fan Cover
6. Pressure Gauge
7. Regulating Valve
8. Handle
Model SC50VT
Power 1.5 kW / 2 HP
Voltage 230 V @ 50 Hz
Motor Poles 2 P
Rated Speed 3200 rpm
Delivery 6.2 cfm
Discharge Pressure 8 bar / 116 psi
Tank Capacity 50 L
Dimensions 360 x 330 x 1000 mm
Net Weight 27 kg
Noise Specification LWA 95 dB
WARNING SYMBOLS
READ THIS INSTRUCTION MANUAL CAREFULLY
BEFORE OPERATING OR ADJUSTING THE
COMPRESSOR.
Risk of electric shock. The compressor must be
disconnected from the mains supply before main-
tenance 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 removed.
Air and condensation water can burst from the
compressor when the drain plug is removed.
Wear safety goggles and ear protectors when
using this compressor.
This compressor produces a high sound level dur-
ing operation. Ear protection should be worn.
MAIN COMPONENTS
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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.
The equipment is to be used only for its prescribed purpose. Any
other use is deemed to be a case of misuse. The user / operator and
not the manufacturer will be liable for any damage or injuries of any
kind caused as a result of this.
NEVER TOUCH MOVING PARTS: Never place your hand near any
moving parts on the air compressor or operate with the covers
removed.
PROTECT YOURSELF 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
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.
SAFETY PRECAUTIONS
Take environmental influences into account:
- Do not expose electric tools to rain.
- Do not use electric tools in a damp or wet environment. There is a
risk of electric shock!
– Make sure that the work area is well-illuminated.
– Do not use electric tools where there is a risk of fire or explosion.
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
compressor should not be used if you are under the influence of
alcohol, drugs or any medication that makes you drowsy.
SAFETY PRECAUTIONS
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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 com-
pressor to the mains supply make sure the red button on top of the
air compressor is in the OFF 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 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 and 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.
Before you connect the equipment to the mains supply make sure
that the data on the rating plate are identical to the mains data:
• Check the equipment for damage which may have occurred in
transit.
• Make sure that the intake air is dry and dustfree.
• Do not install the compressor in a damp or wet room.
• The compressor may only be used in suitable rooms (with good
ventilation and an ambient temperature from +5 °C to 40 °C). There
must be no dust, acids, vapors, explosive gases or inflammable
gases in the room.
• The compressor is designed to be used in dry rooms. It is prohib-
ited to use the compressor in areas where work is conducted with
sprayed water.
SAFETY PRECAUTIONS SAFETY PRECAUTIONS
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ASSEMBLY
1. Set the compressor on a clean, flat surface in a ventilated space.
2. Before you use the machine, make sure that the mains voltage is within ±5%
of rated voltage (see the rating plate).
3. Plug the compressor in and press the power button to the ON position.
4. Use the pressure regulator to set the air pressure output.
5. The set pressure can be drawn from the quicklock coupling.
6. The tank pressure can be read off the pressure gauge.
• You must fully assemble the appliance before using it for the first time!
• Fit the supplied wheels, rubber feet and handle.
• The compressor is equipped with a mains cable with shock-proof plug.
This can be connected to any 230V ~ 50 Hz socket which is protected by a 16 A
fuse.
PREPARATION FOR STARTING
GENERAL MAINTENANCE
To ensure a long service life of the pressure tank, drain off the condensed
water by opening the drain valve each time after using. Release the
tank pressure first. Open the drain screw by turning counter-clockwise
(looking at the screw from the bottom of the compressor) so that all the
condensed water can escape the tank. Then close the drain screw (turn it
clockwise). Check the air tank for signs of rust and damage each time
before using. Do not use the compressor with a damaged or rusty air tank.
Dispose of the condensed water in an environmentally compatible manner
at a suitable collection point.
The safety valve has been set for the highest permitted pressure of the air
tank. It is prohibited to adjust the safety valve or remove its seal. Actuate
the safety valve from time to time to ensure that it works when required.
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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 the motor is switched off the compressed air in the
discharge pipe should be released through the drain-cock. This is a
necessary step before restarting or the motor will be damaged.
3. Turn the regulator knob fully counterclockwise to cause air to bleed
off.
4. The output pressure of compressed air can be regulated by using the
regulating valve. Turn the regulation valve knob clockwise to increase
the pressure.
5. When the compressor needs to be stopped, set the power switch to
the ‘OFF’ position.
6. Release the excess pressure by switching off the compressor and using
the compressed air which is still left in the air tank, e.g. with a
compressed air tool running in idle mode or with a blow gun.
OPERATION AND ADJUSTMENT CLEANING
• Keep the equipment free of dirt and dust as much as possible.
Wipe the equipment with a clean cloth or blow it down with com-
pressed air at low pressure.
• We recommend that you clean the equipment immediately after
you use it.
• Clean the equipment regularly with a damp cloth and some soft
soap. Do not use cleaning agents or solvents; these may be
aggressive to the plastic parts in the equipment. Ensure that no
water can get into the interior of the equipment.
• You must disconnect the hose and any spraying tools from the
compressor before cleaning. Do not clean the compressor with
running water, solvents or the like.
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1. Disconnect power source then release all pressure from the
system before attempting to install, service, relocate or perform
any maintenance.
2. Never unscrew any connecting part when the tank is in pressure
condition.
3. Never disassemble any electrical part before disconnecting the
plug.
4. Never adjust the safety valve carelessly.
5. Never use the compressor in a place where voltage is too low
or too high. Never use electric wire more than 5m long with less
than the section of 1.5mm2, 16A.
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 immediately so as not to damage motor.
8. Disconnect the plug to cut off power supply and open the outlet
valve.
9. Before restarting the motor by pushing the reset button, check
the air compressor carefully, find the causes of the trouble and
solve them, check the pressure in the air tank and make sure it is
under 0.8Mpa.
MAINTENANCE 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
compressor
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. Leakage of safety valve
3. Leakage of discharge pipe
4. Sealing gasket damaged
5. Valve plate damaged,
stuck or carbon build up
6. 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
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1. Moving parts damaged or
stuck by a foreign body

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THERMAL RESET SWITCH
There may be instances when your compressor will overheat.
If it cuts out, this is a safety feature to protect you and your
compressor. Leave this compressor for a good while until you reset it.
If the compressor turns off again on reset you should not keep
running it as it may be damaged and the system may be unsafe.
REPLACEMENT PARTS DIAGRAM
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No. Part Qty Part No No Part Qty Part No
1 Plastic housing 1 907106 45 Plastic housing 1 907127
2Power switch 1905063 46 Pipe 1 905102
3Elbow connector 1 905064 47 Safety valve 1 905103
4Cylinder head 1 905065 48 Plug cord 1 905104
5 Silencer 1 905066 49 Capacitor 1 905105
6 Cylinder head gasket 1 905067 50 Bearing 1 905106
7 Valve block 2 905068 51 Flat gasket 1 905107
8 Valve plate 1 905069 52 Spring 1 905108
9Aluminium spacer 1 905070 53 Crank case 1 905109
10 Head gasket 1 905071 54 Stator 2 907128
11 Bolt 1 905072 55 Rotor 2 905110
12 Plastic handle 2 905073 56 Carbon brushes 2 903676
13 Nut 1 905074 57 Bolt 2 907130
14 Piston Plate 1 905075 58 Bearing 4 905111
15 Piston ring 1 905076 59 Plastic housings 1 905112
16 Connecting rod 2 905077 60 Fan blade 2 905113
17 Piston cylinder 1 905078 61 Spring 1 905114
18 High-voltage tube 1 905079 62 Bearing 608 1 905115
19 Fan blade 1 905080 63 Bolt M5 1 905116
20 Bearing 1 905081 64 Bolt M6 * 20 3 907131
21 Crank throw 1 905082 65 Spring washer 1 905117
22 Belt 2 905083 66 Flat gasket 4 905118
23 Belt wheel 1 905084 67 Bolt M5 * 16 1 905119
24 Pressure relay 6 907126 68 Flat gasket 2 905120
25 Hand shank 1 905085 69 Bolt M4 2 905121
26 Plastic gasket 1 905086
27 Elbow joint 1 905087
28 Socket head cap screw 1 905049
29 Axle 1 905088
30 Flat gasket 1 905089
31 Wheel 1 905122
32 Spring washer 1 905090
33 Nut M8 1 905091
34 Air tank 4 905092
35 Drain plug 4 905093
36 Foot pad bolt 1 905094
37 Foot pad nut 1 905095
38 Foot pad 1 905096
39 Nut 1 905097
40 Bolt 1 904106
41 Pressure regulator 2 905098
42 Bolt 2 905099
43 Pressure gauge 2 905100
44 Air outlet 1 905101
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
28th MAY 2020
SGS Engineering (UK) Ltd
SGS Engineering (UK) Ltd
West Side Park
Raynesway
Derby, DE21 7AZ
Air Compressor
SC50VT
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: