Thank you for purchasing a Sealey product. Manufactured to a high standard this product will, if used according to these instructions and properly
maintained, give you years of trouble free performance.
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE
THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE OR
PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. PLEASE KEEP INSTRUCTIONS SAFE FOR FUTURE USE.
1. SAFETY INSTRUCTIONS
1.1. ELECTRICAL SAFETY
WARNING! It is the responsibility of the owner and the operator to
read, understand and comply with the following: You must check all
electrical products, before use, to ensure that they are safe. You must
inspect power cables, plugs, sockets and any other connectors for wear
or damage. You must ensure that the risk of electric shock is minimised
by the installation of appropriate safety devices. A Residual Current
Circuit Breaker (RCCB) should be incorporated in the main distribution
board. We also recommend that a Residual Current Device (RCD) is
used. It is particularly important to use an RCD with portable products
that are plugged into a supply which is not protected by an RCCB. If in
any doubt consult a qualified electrician. You may obtain a Residual
Current Device by contacting your Sealey dealer. You must also read
and understand the following instructions concerning electrical safety.
1.1.1. The Electricity at Work Act 1989 requires that all portable electrical appliances, if used on business premises, are tested
by a qualified electrician, using a Portable Appliance Tester
(PAT), at least once a year.
1.1.2. The Health & Safety at Work Act 1974 makes owners of electrical appliances responsible for the safe condition of those
appliances and the safety of the appliance operators. If in any
doubt about electrical safety, contact a qualified electrician.
1.1.3. Ensure that the insulation on all cables and on the appliance is
safe before connecting it to the power supply. See 1.1.1. and
1.1.2. and use a Portable Appliance Tester.
1.1.4. Ensure that cables are always protected against short circuit
and overload.
1.1.5. Regularly inspect power supply cables and plugs for wear or
damage and check all connections to ensure that none is loose.
1.1.6. Important: Ensure that the voltage marked on the appliance
matches the power supply to be used and that the plug is fitted
with the correct fuse - see fuse rating below.
1.1.7. DO NOT pull or carry the appliance by the power cable.
1.1.8. DO NOT pull the plug from the socket by the cable.
1.1.9. DO NOT use worn or damaged cables, plugs or connectors.
Immediately have any faulty item repaired or replaced by a qualified electrician.
1.1.10. Model Nos SAC3503B and SAC3103B are supplied with a
flying lead without a plug. Jack Sealey Limited recommend
a 16 amp protected supply. When connecting to a 16 amp
protected supply, contact a qualified electrician, to ensure
connection to a suitably rated supply.
*Provided a good 230V supply is available and the lead
length is not increased from that supplied, the compressor
may operate from a 13 amp supply. This very much depends upon the quality of your power supply.
We recommend that you discuss the installation of an industrial round pin plug and socket with your electrician.
IMPORTANT! The use of extension leads to connect these compressors to the mains is not recommended as the resulting
voltage drop reduces motor, and therefore pump performance.
RECOMMENDED
FUSE RATING:
*13 AMP
See 1.1.10 for power supply options.
Decompression
tube from switch
Non return valve
To receiver
From
pump
1.2Wiring a BS 1363/A UK 3 Pin PlugIf in doubt contact a qualified electrician.
a) Connect the GREEN/YELLOW earth wire to the earth
terminal ‘E’.
b) Connect the BROWN live wire to the live terminal ‘L’.
c) Connect the BLUE neutral wire to the neutral terminal ‘N’.
d) After wiring, check that there are no bare wires, that
all wires have been correctly connected, that the cable outer
insulation extends beyond the cable restraint and that the
restraint is tight.
Double insulated products, which are always marked with this
symbol , are fitted with live (brown) and neutral (blue) wires
only. To rewire, connect the wires as indicated in diagram.
DO NOT connect either wire to the earth terminal.
3 Familiarise yourself with the application and limitations of the
compressor. 3 Ensure the compressor is in good order and condition before
use. If in any doubt do not use the unit and contact an
electrician/service agent.
WARNING! Compressor must only be serviced by an
authorised agent. DO NOT tamper with, or attempt to
adjust, pressure switch or safety valve.
3 Before moving, or maintaining the compressor ensure it is
unplugged from the mains supply and that the air tank
pressure has been vented.
3 Maintain the compressor in good condition and replace any
damaged or worn parts. Use genuine parts only.
Unauthorised parts may be dangerous and will invalidate
your warranty.
3 Read the instructions relating to any accessory to be used
with this compressor. Ensure the safe working pressure of
any air appliance used exceeds compressors output
pressure. If using a spray a gun, check that the area
selected for spraying is provided with an air change/
ventilation system.
3 Ensure the air supply valve is turned off before disconnecting the air supply hose.
3 To move the compressor use the handle only. Maintain unit’s
centre of gravity when moving or lifting. DO NOT attempt to
lift or move the compressor by any other means.
3 Use the compressor in a well ventilated area and ensure it is
placed on a firm surface.
3 Keep tools and other items away from the compressor when
it is in use, and keep area clean and clear of unnecessary
items.
3 Ensure the air hose is not tangled, twisted or pinched.
3 Keep children and unauthorised persons away from the
working area.
7 DO NOT disassemble compressor for any reason. The unit must be checked by qualified personnel only.
7 DO NOT use the compressor outdoors, or in damp, or wet,
locations.
7DO NOT operate within the vicinity of flammable liquids, gases or solids.
7 DO NOT touch compressor cylinder, cylinder head or pipe from head to tank as these may be hot.
7 DO NOT use this product to perform a task for which it has not been designed.
7 DO NOT deface the certification plate attached to the compressor tank.
7 DO NOT cover the compressor or restrict air flow around the unit whilst operating.
q DANGER! DO NOT direct the output jet of air towards people or animals.
7 DO NOT operate the compressor without an air filter.
7 DO NOT allow anyone to operate the compressor unless
they have received full instructions.
7DO NOT operate the compressor if you are tired, under the
influence of alcohol, drugs or intoxicating medication.
WARNING! If an electrical fuse blows, ensure it is replaced with an identical fuse type and rating. 3When not in use, store the compressor carefully in a safe, dry, childproof location
WARNING! The air tank is a pressure vessel and the following safety measures apply:
7DO NOT tamper with the safety valve, DO NOT modify or alter the tank in any way and DO NOT strap anything to the
tank.
7 DO NOT subject the tank to impact, vibration or heat.
7 DO NOT allow contact with abrasives or corrosives.
3 Drain condensation from tank daily.
2. INTRODUCTION & SPECIFICATION
A V-pump belt driven compressor, 50/100ltr, 3hp with bespoke front
control panel, with two outlets, one regulated and one direct. The
pump features heavy-duty fully cast cylinders, capped by alloy heads
for improved heat dissipation and long life. Suitable for professional
workshop applications. Powered by a heavy-duty induction motor for
reliable operation. Twin capacitors and a centrifugal switch aid
trouble free startup on a good *16amp supply. Precision continuously
welded receiver tank manufactured to meet Pressure Vessel
Directive 2009/105/EC. Fitted with fully automatic pressure cut-out
switch, air regulator, receiver and supply pressure gauges. Supplied
with handle and wheels for easy manoeuvrability.
3.1. Remove compressor from packaging and inspect for any
shortages or damage. If anything is found to be missing or
damaged contact your supplier.
3.2.Save the packing material for future transportation of the compressor. We recommend that you store the packing in a
safe location, at least for the period of the guarantee. Then, if
necessary, it will be easier to send the compressor to the
service centre.
3.3.Confirm that the mains voltage corresponds with the voltage shown on the compressor data plate.
3.4.Assemble the wheels and swivel castor using the nuts, bolts and washers supplied (fig.8).
3.5.The compressor should be operated on a horizontal flat surface, or one that does not exceed 5° either transversely
(tyres fully inflated to 1.5bar) or longitudinally with chocks
(fig.3), and should be in a position that allows good air
circulation around the unit (see 1000mm nominal).
3.6.Before using the compressor check the oil level by referring to the oil sight glass (fig.4C). On a horizontal surface, if the
oil level is not up to the red centre mark it should be further
topped up with recommended oil (See section 5.7). To top up
unscrew plug (fig.4B).
3.7.Screw the back half of a filter unit into the port openings in each head as shown in (fig.4.A). Place a filter cover over
each threaded rod protruding from the back half of the filter
and secure each with a wing nut. Refer also to (fig.7).
Breather (at rear)
B
A
C
A
fig.4
Drain plug
the specification plate and shown on the gauge (fig.5.4). This
may take in excess of 5 minutes. The compressor will now
operate automatically. The pressure switch (fig.5.1) stops the
motor when the maximum tank pressure is reached and
restarts it when pressure falls below the minimum threshold,
approximately 2bar (29psi) less than the maximum pressure.
4.3.5. Stop the compressor by pushing the switch knob (See fig.5.1)
downwards. The compressed air inside the compressor head
will flow out via the air line tube situated beneath the switch
housing. Restart is made easier and prevents the motor from
being damaged. DO NOT, other than in an emergency, stop
the compressor by switching off the mains power, or by
pulling the plug out, as the pressure relief will not then occur
and motor damage may result upon restart.
When the compressor runs correctly and is stopped correctly
there will be:
(a) A whistle of compressed air when the motor stops,
(b) A protracted whistle (about 20-25 seconds) when the
compressor starts with no pressure in the tank.
4.3.6. The output pressure is regulated by the pressure regulator
(fig.5.2). Turn the knob clockwise to increase pressure and
counterclockwise to reduce it. The knob can be locked at any
required setting by tightening the locking ring (fig.5.5) up
against the underside of the knob. To determine the correct
working pressure for any piece of equipment check the
corresponding manual. When the compressor is not being
used set the regulated pressure to zero so as to avoid
damaging the pressure reducer.
NOTE: a) If the motor does not cut in and out, but runs
continuously when using an air appliance, the capacity of the
compressor may be too small for the equipment or tool.
b) The gauge (fig.5.4) indicates the pressure inside the
main tank. The gauge (fig.5.3) indicates the pressure supplied to the air equipment. Should the pressure
in the main tank exceed the pre-set switch (fig.5.1)
maximum, the safety valve (fig.5.6) will activate.
WARNING! For this reason DO NOT tamper with, or
adjust, the switch or safety valve.
4.3.7. The compressor is fitted with a reset trip, located in the
connection box on top of the motor. The reset button is on the
side of the box (fig.2). Should the trip activate, leave for 1
minute before pressing the button to reset. For possible
causes of trip activation and remedies see section 6
Troubleshooting.
4. OPERATION
WARNING! Ensure that you have read, understood and
apply Section 1 safety instructions.
4.1. IMPORTANT. The use of extension leads to connect this
compressor to the mains is not recommended as the
resulting voltage drop reduces motor, and therefore
pump, performance and could damage your compressor.
4.2. Take care when selecting tools for use with the
compressor. Air tool manufacturers normally express the
volume of air required to operate a tool in cubic feet per
minute (cfm). This refers to free air delivered by the
compressor (‘air out’) which varies according to the
pressure setting. Do not confuse this with the
compressor displacement which is the air taken in by
the compressor (‘air in’). ‘Air out’ is always less than ‘air
in’ - due to losses within the compressor.
4.3. STARTING THE COMPRESSOR.
4.3.1. Your compressor is fitted with a push/pull type on/off
switch. To turn the compressor "on" pull the switch knob
upwards. To turn the compressor "off" push the knob
downwards. (See fig.5.1)
4.3.2. Check that the on/off switch is in the “off” position and
the regulator tap (fig.5.2) is closed (Zero ‘0’ bar).
4.3.3. Plug mains lead into mains supply and start the compressor
by pulling the switch knob (fig.5.1) upwards.
4.3.4. Leave the compressor running with no air line or tools
connected, and regulator (fig.5.3) set to maximum pressure
(fully clockwise). Make sure that the pressure in the tank
rises and that the compressor stops automatically when the
maximum pressure value is reached. This value is written on
In order to keep the compressor in good working condition,
periodic maintenance is essential.
WARNING! Before performing any maintenance operation, switch off the compressor, disconnect from
electricity supply and release all air from the tank.
IMPORTANT! Failure to carry out maintenance tasks may
invalidate the warranty on your compressor.
5.1. OPERATIONS TO BE CARRIED OUT AFTER THE FIRST
5 WORKING HOURS:
a) Check that all bolts/nuts are tight, particularly those
retaining the crank case and cylinder head.
5.2.OPERATIONS TO BE CARRIED OUT AFTER THE FIRST 50 WORKING HOURS:
b) Replace the lubricating oil - see para 5.5.
5.3.OPERATIONS TO BE CARRIED OUT DAILY: a) Drain condensation by opening the valve located under
the tank (fig.6). Place a container under the valve and slowly
open the valve by turning counterclockwise.
Drain valve underside
fig.6
of receiver, ensure
shut on start up (4.3)
drain daily (5.3.)
5.5.OPERATIONS TO BE CARRIED OUT EVERY 200 HOURS:a) Replace the lubricating oil. For oil specifications see 5.7.
Remove the oil filler plug (see fig.4.B) then unscrew oil drain
plug (see fig.4) and drain the oil into a container.
Drain when the compressor is hot so that oil drains rapidly
and completely. Incline compressor to ensure complete
drainage.
Replace oil drain plug and refill through the oil filler
aperture. Do not overfill. Replace oil filler plug.
b) Check the automatic cut-out at max. pressure and the
automatic cut-in at 2bar below.
WARNING! Never mix different oils and DO NOT use
non-detergent/low quality oils as the compressor may be
damaged.
WARNING! Dispose of waste oil only in accordance with local authority requirements.
5.6. OPERATIONS TO BE CARRIED OUT EVERY 500 HOURS:
a) Replace air filter. (See fig.7)
b) Check all tube fittings and electrical connections.
5.7.Recommended oils;Recommended oil for compressors, suitable for room
temperatures ranging from +5°C to +25°C.
SEALEY CPO or equivalent SAE 40 compressor oil. Room
temperature below +5°C: SAE 20 compressor oil.
5.4.OPERATIONS TO BE CARRIED OUT EVERY 100 HOURS (or more frequently, if the compressor operates in a very
dusty atmosphere)
a) Check oil level and, if necessary, top up.
b) Remove the filter elements (See fig.7) and clean with
compressed air (wear eye protection). DO NOT operate the
compressor without the filters as foreign bodies or dust could
seriously damage the pump.
c) Check for oil leaks.
fig.7
5.8 IMPORTANT WARNING - Air contaminants taken into the
compressor will affect optimum performance. Example: Body
filler dust or paint overspray will clog the pump intake filter
and may cause internal damage to pump/motor components.
Please note that any parts damaged by any type of
contamination will not be covered by warranty.
5.9Inspection of pressure tank both inside and out.Under the PRESSURE SYSTEMS SAFETY REGULATIONS
2000 it is the responsibility of the owner of the compressor to
initiate a system of inspection that both defines the frequency
of the inspection and appoints a person who has specific
responsibility for carrying out the inspection.
1A) Pressure drop in the tankAir leaks at connectionsRun compressor to max. pressure, switch off.
1B) Pressure drop in the tankAir leaks from safety valveIt should be replaced, unless leaking at a joint
Brush soap solution over connections and look for
bubbles. Tighten connections showing leaks.
If problem persists contact Authorised Service Agent
which can be sealed.
1C) Pressure drop in the tankAir leaks from cylinder head gasketCheck tightness of head bolts. If leak continues
2) Pressure switch valve leaks when
compressor is idle
3) Air leaks from tank body or tank weldsInternal corrosion caused by infrequent tank
4A) Motor stops and will not restartThermal cut out has operatedAllow unit to cool for 30 minutes before restarting
4B) Motor stops and will not restartSupply fuse has trippedPress trip reset button (fig.2) and restart unit. If
5) Compressor stops and does not restartMotor failureContact Authorised Service Agent
6A) Compressor does not stop at max. pressurePressure switch faultContact Authorised Service Agent
6B) Compressor does not stop at max. pressureFilter clogged
7) Compressor noisy with metallic knockBearing or piston damageContact Authorised Service Agent
8) Excessive moisture in discharged airHigh humidity environmentDrain tank after each use
Non-return valve seal defectiveEmpty the air tank. Referring to fig.9, remove the
draining or non permitted modifications to tank
Head gasket or valve fault
contact authorised Service Agent
non-return valve cap (3), spring (2) and seal (1).
Clean the seal and its seat, or if necessary replace
the seal
Tank could rupture or explode. Cannot be repaired
DISCONTINUE USE IMMEDIATELY
repeated tripping occurs replace the check valve or
contact authorised Service Agent
Replace filter element.
Contact Authorised Service Agent
See g.1 for location and section 6.2
fig.9
Parts support is available for this product. To obtain a parts listing and/or diagram,
please log on to www.sealey.co.uk, email sales@sealey.co.uk or telephone 01284 757500.
Environmental Protection.
Recycle unwanted materials instead of disposing of them as
waste. All tools, accessories and packaging should be sorted,
taken to a recycle centre and disposed of in a manner which is
compatible with the environment.
NOTE: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior notice.
IMPORTANT: No liability is accepted for incorrect use of this product.
WARRANTY: Guarantee is 24 months from purchase date, proof of which will be required for any claim.
INFORMATION: For a copy of our latest catalogue and promotions call us on 01284 757525 and leave your full name and address, including postcode.