DIRECT DRIVE AIR COMPRESSOR,
24L, 2HP, 110V
MODEL NO: SAC2420E110V.V4
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.
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.
1.1.1. Over/current Protection: The user has to make provision for the installation of the over-current protection of the power circuit.
1.1.2. Electrical disconnecting device:The user has to make provisions for the installation of the electrical disconnecting device of the
power circuit.
1.2. GENERAL SAFETY
9 Operation must be with all guards, covers, lids and enclosures correctly in place.
9 The concentration of processed gases that can displace breathing air shall be kept within acceptable levels. Reference EN 12021 for
acceptable levels of contaminants in breathing air.
9 Remove from mains supply when performing maintenance or inspections.
9 Delivery hoses should be tted with a safety cord.
9 Familiarise yourself with the application and limitations of the compressor.
WARNING! all hoses and fitting shall be suitable for the site use at the maximum allowable pressure of the portable compressor.
9 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.
9 Before moving, inspecting or maintaining the compressor ensure it is unplugged from the mains supply and that the air tank pressure has
been vented.
9 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.
9 Read the instructions relating to any accessory to be used with this compressor. Ensure the safe working pressure of any air appliance
used exceeds compressor’s output pressure. If using a spray gun, check that the area selected for spraying is provided with an air
change/ventilation system.
9 Ensure the air supply valve is turned off before disconnecting the air supply hose.
9 To move the compressor, use the handle only. Maintain unit’s centre of gravity when lifting. DO NOT attempt to lift or move the compressor
by any other means.
9 Use the compressor in a well ventilated area and ensure it is placed on a firm 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 the air hose 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.
8 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.
8 DO NOT use this product to perform a task for which it has not been 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 unit whilst operating.
SAC2420E110V.V4 Issue 2 18/04/24
Original Language Version
© Jack Sealey Limited
Refer to
instruction
manual
Warning:
Automatic
start up
Warning:
Electricity
Warning:
Hot surface
Wear ear
protection
Indoor
use only
Check oil level
before
first use
DO NOT
open air cock
before air hose
attached
Wear eye
protection
▲ DANGER! DO NOT direct the output jet of air towards people or animals.
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.
WARNING! The air tank is a pressure vessel and the following safety
measures apply:
8 DO NOT tamper with the safety valve, 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.
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 Drain condensation from tank daily and inspect inside walls for corrosion
every three months and have a detailed tank inspection carried out
annually. The tank shell must not fall below the certified thickness at any point.
9 When the compressor is not in use it should be switched off, disconnected from the mains supply and the air drained from the tank.
1.3. INSPECTION OF PRESSURE TANK BOTH INTERNAL AND EXTERNAL
1.3.1. 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.
9 When not in use, store the compressor carefully in a safe, dry, childproof location.
2. INTRODUCTION
Aluminium cylinder head with cast iron cylinder gives added resistance to wear. Suitable for on site applications or anywhere that
requires 110V. Pump head directly coupled to heavy-duty induction motor for reliable and smooth operation. Fitted with fully automatic
pressure cut-out switch and twin gauges displaying tank and working pressures. Copper wound motor provides longer lasting
performance.
3. SPECIFICATION
MODEL NO: SAC2420E110V.V4
Air Displacement cfm(L/min): 6.3(178) Size (W x D x H): 600 x 290 x 585mm
Duty Cycle: S3 30% (3min on, 7min o) Supply: 110V/16A
Maximum Free Air Delivery cfm(L/min): 4.6(130) Type of distribution system: TN
Maximum Pressure: 116psi(8bar) Full load current for each incoming supply: 12A
Minimum Rated Supply: 16A Intended media: Air
Motor Output: 2hp Inlet intermediate pressure/temperatures: 0.1MPA. 10 – 40°
Noise Level (Test code EN ISO 2151:2008) 95dB(A) Inlet discharge pressure/temperatures: 0.8MPA. 10 – 40°
Outlet: Quick Release Coupling Short circuit current rating (incoming power supplies): 14A
Oil Capacity: 0.27L Maximum pressure ratio: 0.8MPA
Phase: 1ph Pressure limits of lubrication system: 0.1MPA
Plug Type: Yellow - 16A-2P+E Temperature limits of lubrication system: 0.8MPA. 70°
Power Supply Cable Length: 1.8m Maximum speed of the unit: 2850RPM
Receiver Capacity: 24L Minimum speed of the unit: 2750RPM
Recommended Oil: ISO 100
4. PREPARATION
FIG.2 FIG.3 FIG.4
4.1. Remove the compressor from its packaging and inspect for any shortages or damage.
4.2. Confirm that the 110V voltage corresponds with the voltage shown on the compressor data plate.
4.3. The compressor should be installed on a flat surface, or one that does not exceed 10° either transversely or longitudinally, (see fig.2) and
should be in a position that allows good air circulation around the unit.
4.4. THE COMPRESSOR IS SUPPLIED WITHOUT OIL IN IT. THE OIL IS IN A SEPARATE CONTAINER.
Remove the transit plug from the oil filler aperture, pour oil into the aperture until it has reached the correct level on the sight glass (fig.3). Fit the oil
filler/breather supplied into the aperture.
8 DO NOT attempt to run the compressor until this has been done.
FIG.1
Original Language Version
© Jack Sealey Limited
SAC2420E110V.V4 Issue 2 18/04/24
4.5. Ensure that the air vent in the oil filler/breather is free from debris. If
the air vent is blocked, pressure can build up in the crankcase causing
damage to the compressor and possible personal injury.
4.6. If it is not already fitted, screw the air filter holder into the inlet port (fig.4).
5. OPERATION
IMPORTANT: 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 and so it is important that, before choosing equipment, you
study the ‘Free Air Delivery’ figures shown in the Specification Chart.
WARNING! ENSURE THAT YOU HAVE READ, UNDERSTOOD AND
APPLIED SECTION 1 SAFETY INSTRUCTIONS.
5.1. Make sure that the main switch (fig.5.1) is ‘OFF’ (down).
5.2. Check the oil level by looking through the sight glass (fig.3).
5.3. Ensure that the tank drain valve is closed (fig.1).
5.4. Connect the air tool required to the compressor via an air line connected to
the air outlet.
5.5. Plug the mains plug into the mains supply and start the compressor by pulling
up the main switch (fig.5.1).
5.6. Allow the pressure in the tank to rise to the maximum at which point the
compressor will automatically cut out. Tank pressure is shown on the larger
gauge (fig.5.6).
5.7. Begin to gradually open the regulator by turning the knob clockwise (fig.5.2) until small gauge registers the required operating pressure
specified for the tool to be used. Always adjust up to the required pressure rather than down from a higher pressure. The required setting,
once achieved, can be locked by screwing the locking ring (fig.5.3) up tight underneath the adjusting knob.
5.8. You can now begin to use the tool. The compressor will operate automatically cutting in and out as required to restore the air pressure in
the tank. The pressure switch (fig.5.8) stops the motor when the maximum tank pressure is reached and restarts it when pressure falls
below the minimum threshold - approx. 2 bar (29psi) less than the maximum pressure.
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 appliance.
b) The main gauge (fig.5.6) indicates the pressure inside the main tank, NOT the pressure supplied to the air equipment, which is shown
on the smaller gauge (fig.5.5). Should the pressure in the main tank exceed pre-set switch (fig.5.8) maximum, the safety valve (fig.5.7) will
activate.
WARNING! For this reason DO NOT tamper with, or adjust, the switch or the safety valve. When the compressor is not being used
set the regulated pressure to zero so as to avoid damaging the pressure regulator.
5.9. To stop the compressor press down the main switch (fig.5.1). When the compressor stops there will be a whistling sound as compressed
air is vented from the compressor head. 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.
5.10. When you have finished using the compressor unplug the unit from the mains power supply.
5.11. Set the outlet pressure on the regulator to zero.
5.12. Remove the air line and air tool.
5.13. The tank must now be drained. This will release the air left in the tank and drain away condensation that may have formed within the tank.
Choose a suitable location for this operation and/or make provision to collect the condensation. Wear ear and eye protection. Open
the tank drain valve (fig.1) slowly, allowing air and moisture to bleed from the tank. After bleeding, close the drain valve to prevent debris
building up in the valve.
WARNING! Water that is allowed to remain in the tank during storage will corrode and weaken the air tank, which could cause
the tank to rupture. To avoid serious injury, drain the tank on a daily basis.
5.14. SAFETY FEATURES
THERMAL CUT OUT If the unit overheats the thermal cut out will operate and shut the unit down. Allow the unit to cool down then press
the reset button, located just inside the pump cover (fig.7).
FIG.6
FIG.7
FIG.5
Original Language Version
© Jack Sealey Limited
SAC2420E110V.V4 Issue 2 18/04/24
6. MAINTENANCE
WARNING! Before performing any maintenance operation, switch the compressor off, disconnect from electricity supply and release all air
from the tank. In order to keep the compressor in good working condition, periodical maintenance is essential.
9 During Maintenance display DO NOT START and MAINTENANCE WORK IN PROGRESS signage.
6.1. After the first 50 working hours replace the lubricating oil - see para 6.4.
6.2. OPERATIONS TO BE CARRIED OUT DAILY:
a) Drain condensation, place a container under the valve and open the valve by turning anti-clockwise (fig.1). Retighten the valve.
b) Check that all nuts and bolts are tight, particularly those retaining the crankcase and cylinder head.
6.3. 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 it up.
b) Remove the air filter element by unscrewing the filter holder (fig.4) and prising open the holder. Clean it by blowing through with an air
line at low pressure, from the clean side. Alternatively, wash it in soapy water, rinse and dry. DO NOT operate the compressor without the
filter as foreign bodies or dust could seriously damage the pump.
c) Check for oil leaks.
6.4. OPERATIONS TO BE CARRIED OUT EVERY 200 HOURS:
a) Replace the lubricating oil. Remove the oil filler/breather and unscrew the drain bolt (fig.3), drain the oil into a suitable container.
Drain when the compressor is hot so that the oil drains rapidly and completely. Incline the compressor to ensure complete drainage.
Replace the drain bolt and refill with fresh oil through the filler aperture. DO NOT overfill. Replace oil filler/breather (fig.3).
RECOMMENDED OIL:
Suitable for room temperatures ranging from +5ºC to +25ºC:SEALEY CPO or equivalent SAE 40 compressor oil.
Room temperature below +5ºC: SAE 20 compressor oil.
WARNING! Never mix different oils and do not use non-detergent/low quality oils as the compressor may be damaged. Dispose of waste
oil only in accordance with local authority requirements.
b) Check the automatic cut-out at maximum pressure and the automatic cut-in at 2 bar below that.
6.5. OPERATIONS TO BE CARRIED OUT EVERY 500 HOURS:
a) Replace air filter.
b) Check all tube fittings and electrical connections.
IMPORTANT! Failure to carry out maintenance tasks may invalidate the warranty on your compressor.
IMPORTANT WARNING - Air contaminants taken into the compressor will aect optimum performance. Example: Body ller dust or
paint overspray will clog the pump intake lter and may cause internal damage to pump/motor components.
6.6. SCHEDULED MAINTENANCE TABLE
MAINTENANCE
OPERATIONS
DAILY 100 HRS. 200 HRS. 500 HRS.
Drain condensation
•
Check oil level
•
Clean intake filter
•
Check for oil leaks
•
Check cut-out
•
Replace oil
•
6.7. INSPECTION 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.
Original Language Version
© Jack Sealey Limited
SAC2420E110V.V4 Issue 2 18/04/24
7. TROUBLESHOOTING
FAULT CAUSE REMEDY
1A) Pressure drop in the tank. Air leaks at connections. Run compressor to max. pressure, switch off
Brush soap solution over connections and look for
bubbles. Tighten connections showing leaks.
If problem persists contact Authorised Service Agent.
1B) Pressure drop in the tank. Air leaks from safety valve. Operate the safety valve manually by pulling on the
ring. If valve continues to leak when in the closed
position it should be replaced.
1C) Pressure drop in the tank. Air leaks from cylinder head gasket. Check tightness of head bolts. If leak continues contact
Authorised Service Agent.
2) Pressure switch valve leaks when
compressor is idle.
Non-return valve seal defective. Empty the air tank. Referring to fig.6, remove the non-
return valve cap (3), spring (2) and seal (1). Clean the
seal and its seat, or if necessary replace the seal and
refit.
3) Air leaks from tank body or tank welds. Internal corrosion caused by infrequent tank
draining or non permitted modifications to tank.
Tank could rupture or explode. Cannot be repaired.
DISCONTINUE USE IMMEDIATELY.
4A) Motor stops and will not restart. Thermal cut out has operated. Allow unit to cool for 30 mins, then press reset
(see fig.7)
4B) Motor stops and will not restart. Supply fuse has tripped. Reset fuse and restart unit. If repeated tripping
occurs, replace the check valve or contact
Authorised Service Agent.
5) Compressor stops and does not restart. Motor failure. Contact Authorised Service Agent.
6A) Compressor does not stop at max. pressure. Pressure switch fault. Contact Authorised Service Agent.
6B) Compressor does not stop at max. pressure. Filter clogged.
Head gasket or valve fault.
Replace filter element.
Contact Authorised Service Agent.
7) Compressor noisy with metallic knock. Bearing or piston damage. Contact Authorised Service Agent.
8) Excessive moisture in discharged air. High humidity environment. Drain tank after each use.
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
Original Language Version
© Jack Sealey Limited
SAC2420E110V.V4 Issue 2 18/04/24
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. 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.
