WARNING!
Hot surface
WARNING!
Automatic start-
up
WARNING!
Electricity
50L V-TWIN DIRECT DRIVE AIR
COMPRESSOR 3HP
MODEL NO: SAC05030.V2
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 AND/OR PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE
FOR FUTURE USE.
Refer to
instruction
manual
1. SAFETY
1.1. ELECTRICAL SAFETY
WARNING! It is the user’s responsibility to check the following:
9 Check all electrical equipment and appliances to ensure that they are safe before using. Inspect power supply leads, plugs and all
electrical connections for wear and damage. Sealey recommend that an RCD (Residual Current Device) is used with all electrical
products.
Electrical safety information. It is important that the following information is read and understood:
9 Ensure that the insulation on all cables and on the appliance is safe before connecting it to the power supply.
9 Regularly inspect power supply cables and plugs for wear or damage and check all connections to ensure that they are secure.
Important: Ensure that the voltage rating on the appliance suits the power supply to be used and that the plug is tted with the correct
fuse.
8 DO NOT pull or carry the appliance by the power cable.
8 DO NOT pull the plug from the socket by the cable.
8 DO NOT use worn or damaged cables, plugs or connectors. Ensure that any faulty item is repaired or is replaced immediately by a
qualied electrician.
If the cable or plug is damaged during use, switch o the electricity supply and remove from use.
Ensure that repairs are carried out by a qualied electrician.
1.2. GENERAL SAFETY
9 Familiarise yourself with the application and limitations of the compressor.
9 Ensure the compressor is in good 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.
9 Before moving or maintaining the compressor ensure it is unplugged from the mains supply, and that the air tank pressure has been
vented.
9 Only use recommended attachments and parts. To use unapproved items may be dangerous and will invalidate your warranty.
9 Read the instructions regarding any accessory used with the compressor. Ensure the safe working pressure of any air appliance used
exceeds unit’s output pressure.
9 Ensure the air supply valve is turned off before disconnecting the air supply hose.
9 To move the compressor use the handle only. SAC05030 only - lift the compressor so that the front feet have enough clearance for
manoeuvring, but maintain the unit’s stability.
8 DO NOT attempt to lift or move the compressor by any means other than by the handle.
9 Use the compressor in a well ventilated area with a temperature above 5°C, and ensure it is placed on a firm, level surface.
9 Keep tools and other items away from the compressor when it is in use, and keep area clean and clear of unnecessary items.
9 Ensure any air hose attached is not tangled, twisted or pinched.
9 Keep children and unauthorised persons away from the working area.
8 DO NOT dismantle the compressor for any reason. The unit must be checked by qualified personnel only.
8 DO NOT use the compressor outdoors, or in damp, or wet, locations and DO NOT operate within the vicinity of flammable liquids, gases
or solids.
8 DO NOT touch compressor cylinder, cylinder head or pipe from head to tank as these may be hot and will remain so for some time
after shutdown.
8 DO NOT attempt to move the compressor by pulling the air tool hose. Only move the compressor by the handle.
8 DO NOT use this product to perform a task for which it is not designed.
8 DO NOT deface the certification plate attached to the compressor tank.
8 DO NOT cover the compressor or restrict air flow around the machine whilst operating.
8 DO NOT operate the compressor without an air filter.
8 DO NOT allow anyone to operate the compressor unless they have received full instructions.
▲ DANGER! DO NOT direct the output jet of air towards people or animals.
WARNING! The air tank is a pressure vessel and the following safety measures apply:
8 DO NOT tamper with the safety valve and DO NOT modify or alter the tank in any way and DO NOT strap anything to the tank.
8 DO NOT subject the tank to impact, vibration or to heat and DO NOT allow contact with abrasives or corrosives.
Original Language Version
© Jack Sealey Limited
SAC05030.V2 Issue 4 (H,F) 20/09/23
9 Drain condensation from tank daily and inspect inside walls for corrosion every three months and have a detailed tank inspection
carried out annually.
9 The tank shell must not fall below the certied thickness at any point.
9 Inspection of pressure tank both internal and external.
9 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 denes the frequency of the inspection and appoints a person who has specic responsibility for
carrying out the inspection.
8 DO NOT carry out any welding operations on any pressurised parts of the vessel.
WARNING! If an electrical fuse blows, ensure it is replaced with an identical fuse type and rating.
9 When not in use, store the compressor carefully in a safe, dry, childproof location.
9 When the compressor is not in use, it should be switched o, disconnected from the mains supply and the air drained from the tank.
2. INTRODUCTION
V-Twin pump with aluminium cylinders and cast iron liners for reduced weight and improved resistance to wear. Suitable for general-
purpose workshop applications. Pump directly coupled to a heavy-duty induction motor for reliable operation. Precision welded receiver
tank manufactured to meet Pressure Vessel Directive. Fitted with fully automatic pressure cut-out switch, air regulator and pressure
gauges for tank and supply. Supplied with handle and wheels for easy manoeuvrability. Fitted with 3-pin plug.
3. SPECIFICATION
Model No: ................................................ SAC05030.V2
Air Displacement cfm(L/min): ...........................12.6(357)
Fuse Rating:..............................................................13A
Maximum Free Air Delivery cfm(L/min): ...........8.75(248)
Maximum Pressure: .................................... 130psi(9bar)
Minimum Rated Supply: ............................................13A
Motor Output: ............................................................3hp
Outlet: .......................................Quick Release Coupling
Phase: .......................................................................1ph
Receiver Capacity: ....................................................50L
Size (W x D x H): .............................810 x 420 x 620mm
Supply: .............................................................230V/13A
FIG.1 FIG.2 FIG.3
4. PREPARATION
4.1. Remove compressor from packaging and inspect for any shortages or damage. If anything is found to be missing/damaged contact
your supplier.
4.2. Save the packing material for future transportation of the compressor. We recommend that the packing is stored 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.
4.3. Conrm that the mains voltage corresponds with the voltage shown on the compressor data plate.
4.4. Fit the main wheels (g.1.A) and two rubber feet (g.1.B) to the main frame using the nuts, bolts and washers supplied.
4.5. The compressor should be installed on a at, rm surface, or one that does not exceed 15° either transversely or longitudinally, and
should be in a position that allows good air circulation around the unit.
4.6. The compressor is shipped with oil in the pump, but the level needs checking before starting the unit for the rst time. Check the oil
level by referring to the oil sight glass (g.2.B). If the oil level is not up to the red centre mark, it should be topped up. Remove the
plastic transit plug from the oil ller hole and if required, pour in the recommended oil. (See section 5.6). Screw the ller/breather cap
supplied into the aperture as shown (g.2.A).
5. OPERATION
WARNING! Ensure that you have read, understood and apply Section 1 safety instructions.
5.1. 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.
5.2. 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.
5.3. STARTING THE COMPRESSOR
5.3.1. The compressor is tted with a push/pull type of ON/OFF switch (g.3.A).
5.3.2. To turn the compressor ‘ON’ pull the switch knob upwards. To turn the compressor ‘OFF’ push the switch knob downwards.
5.3.3. Check that the ON/OFF switch is in the “OFF” position and the regulator tap (g.3.C) is closed (Zero ‘0’ bar, Anti-clockwise).
5.3.4. Plug mains lead into mains supply and start the compressor by pulling the ON/OFF switch knob upwards.
5.3.5. Leave the compressor running with the regulator tap (g.3.C) set to maximum pressure. Make sure that the pressure in the tank rises
and that the compressor stops automatically when the maximum pressure value allowed - written on the specication plate and shown
on the gauge (g.3.G) - is achieved. The compressor will now operate automatically.
Original Language Version
© Jack Sealey Limited
SAC05030.V2 Issue 4 (H,F) 20/09/23
The pressure switch (g.3.B) stops the motor when the maximum tank pressure is reached, and will restart it when pressure falls below
the minimum threshold - approx. 2 bar (29psi) less than the maximum pressure.
5.3.6. Stop the compressor by pushing the switch knob downwards (fig.3.A). The compressed air inside the compressor head will exhaust,
making the restart easier and preventing the motor from being damaged.
8 DO NOT, other than in an emergency, stop the compressor by switching off the mains socket, or by pulling the plug out of the socket, 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.
5.3.7. The output pressure is regulated by the pressure regulator tap (fig.3.C). Turn the tap clockwise to increase pressure and anti-clockwise to
reduce it. The tap can be locked at any required setting by tightening the locking ring (fig.3.D) up against the underside of the tap. 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 larger gauge (fig.3.G) indicates the pressure inside the main tank. The smaller gauge (fig.3.F) indicates the pressure supplied
to the air equipment. Should the pressure in the main tank exceed the pre-set switch (fig.3.B) maximum, the safety valve (fig.3.H) will
activate.
WARNING! For this reason DO NOT tamper with, or adjust, the pre-set switch or safety valve (fig.3.B&H).
5.3.8. The compressor is fitted with an overload switch, and a reset trip button located in the connection box on top of the motor (see fig.1.C &
fig.6). Should the overload switch activate, switch the compressor off and leave for a few minutes before pressing the trip reset button to
reset, and then re-start the compressor. For possible causes of overload switch activation and remedies, see Section 6.
6. MAINTENANCE
In order to keep the compressor in good working condition, periodic maintenance is essential.
WARNING! Before performing any maintenance operation, switch o the compressor, disconnect from electrical supply and release all
air from the tank.
IMPORTANT: Failure to carry out maintenance tasks may invalidate the warranty on your compressor.
6.1. Operations to be carried out after the rst 5 working hours:
Check that all nuts/bolts are tight, particularly those retaining the crankcase and cylinder heads.
6.2. Operations to be carried out after the rst 100 working hours:
Replace the lubricating oil (see 6.6. below).
6.3. Operations to be carried out daily:
Drain condensation by opening the valve located under the tank (g.4). Place a container under the valve to collect any condensation,
as it may contain residual oil. Close valve after draining condensation and dispose of it safely.
Regularly clean dirt and dust away from the safety devices with a clean cloth or by blowing with low pressure compressed air.
Generally keep the compressor clean.
6.4. Operations to be carried out every 100 hours:
(or more frequently, if the compressor operates in a very dusty atmosphere)
Check oil level, top up if necessary.
Remove the lter elements. Turn o the compressor and using stored air from it’s tank, clean the lters with compressed air (wear
eye protection and DO NOT direct air towards the body or hands). DO NOT operate the compressor without the lters as foreign bodies
or dust could seriously damage the pump. Replace the lter elements.
Check for oil leaks.
6.5. Operations to be carried out every 200 hours:
Check the automatic cut-out at maximum pressure, and the automatic cut-in at 2 bar below maximum pressure.
Replace air lters (See 5.4).
6.6. Operations to be carried out every 400 hours:
Replace the lubricating oil. For oil specications see below.
Remove the oil ller/breather plug (g.2.A) then unscrew oil sight glass (g.2.B).
Drain oil into a suitable container. Drain when the compressor is hot if possible, so that the oil drains rapidly and completely. Incline the
compressor to ensure complete drainage. Replace oil sight glass and rell with fresh oil through the oil ller/breather aperture.
DO NOT overll. Replace oil ller/breather plug.
WARNING! Never mix dierent oils and do not use non-detergent/low quality oils, as the compressor may be damaged.
Recommended oils: Recommended oil for compressors, suitable for temperatures ranging from +5°C to +25°C: SEALEY CPO or
equivalent SAE 40 compressor oil.
WARNING! Dispose of waste oil only in accordance with local authority requirements.
Check all tube ttings and electrical connections.
Inspect pressure tank inside and out for damage or corrosion.
FIG.4 FIG.5 FIG.6
Original Language Version
© Jack Sealey Limited
SAC05030.V2 Issue 4 (H,F) 20/09/23
6.7. SCHEDULED MAINTENANCE TABLE
MAINTENANCE
OPERATIONS
DAILY 100 HRS. 200 HRS. 400 HRS.
Drain condensation
•
Check oil level
•
Clean intake filter
•
Check for oil leaks
•
Check cut-out
•
Replace oil
•
General cleaning of
compressor
•
Internal & external
inspection of tank
•
Replace air filter
•
Check tube fittings and
electrical connections
•
6.8. 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.
7. TROUBLESHOOTING
FAULT CAUSE REMEDY
Pressure drop in the tank. Air leaks at connections. Run compressor to max. pressure,
switch off unit. Brush soap solution over
connections and look for bubbles. Tighten
connections showing leaks. If problem
persists contact Authorised Service Agent.
Pressure switch valve leaks when
compressor is idle.
Non-return valve seal defective. Empty the air tank, remove the non-
return valve cap (fig.5.3) and clean, or if
necessary, replace
the seal (fig.5.1).
Compressor stops and does not restart.
Motor failure.
Contact Authorised Service Agent.
Overload switch activated (Fig.6). Occasionally the start up load may activate
switch.
Leave for a few minutes then press the
reset button.
Extension lead too long. Remove extension lead and test the
compressor by
connecting as near to the
main fuse box as possible.
Head unloader not operating Contact Authorised Service Agent.
Compressor does not stop at max.
pressure.
Pressure switch fault. Contact Authorised Service Agent.
Filter clogged. Clean or replace filter element.
Head gasket or valve fault. Contact Authorised Service Agent.
Compressor noisy with metallic knock. Bearing or piston damage. Contact Authorised Service Agent.
Original Language Version
© Jack Sealey Limited
SAC05030.V2 Issue 4 (H,F) 20/09/23
WEEE REGULATIONS
Dispose of this product at the end of its working life in compliance with the EU Directive on Waste Electrical and Electronic Equipment
(WEEE). When the product is no longer required, it must be disposed of in an environmentally protective way. Contact your local solid
waste authority for recycling information.
SAC05030.V2 Issue 4 (H,F) 20/09/23
Original Language Version
© Jack Sealey Limited
Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500 sales@sealey.co.uk www.sealey.co.uk
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be
sorted, taken to a recycling centre and disposed of in a manner which is compatible with the environment. When
the product becomes completely unserviceable and requires disposal, drain any uids (if applicable) into approved
containers and dispose of the product and uids according to local regulations.
REGISTER YOUR
PURCHASE HERE
Note: It is our policy to continually improve products and as such we reserve the right to alter data, specications and component parts
without prior notice. Please note that other versions of this product are available. If you require documentation for alternative versions, please
email or call our technical team on technical@sealey.co.uk or 01284 757505.
Important: No Liability is accepted for incorrect use of this product.
Warranty: Guarantee is 12 months from purchase date, proof of which is required for any claim.
