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INSTRUCTIONS FOR: COMPRESSORS
270LTR, BELT DRIVE, 2 x 3.0HP with CAST CYLINDERS
MODEL No's: SAC1276B, SAC2276B
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.
SAC1276B illustrated (SAC2276B differs slightly)
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 are 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 1.1.10. 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. A 32amp supply is required and we recommend that a 32Amp
industrial round pin plug should be fitted and connected to a
32Amp supply having a Type C breaker. If in doubt, you must
contact a qualified electrician to ensure that a suitably rated
supply is available.
1.Direct Compressed Air Outlet
2.Tank
3.On/Off Switches
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.
1.2. GENERAL SAFETY
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 gun, check that the area selected
for spraying is provided with an air change system/ventilation.
3 Ensure the air supply valve is turned off before disconnecting
the air supply hose.
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.
7 DO 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.
4.Reset Switches
5.Pressure Gauge
6.Condensate Drain Tap
Original Language Version
SAC1276B, SAC2276B Issue:2 - 20/02/12
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GENERAL SAFETY CONTINUED:
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.
WARNING! The air tank is a pressure vessel and the
following safety measures apply:
7 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.
7 DO NOT subject the tank to impact, vibration or to heat and
DO NOT allow contact with abrasives or corrosives.
3 Drain condensation from tank and inspect inside walls for
corrosion as per the maintenance schedule and have a
detailed tank inspection carried out annually. The tank shell
must not fall below the certified thickness at any point.
WARNING! If an electrical fuse blows, ensure it is replaced
with an identical fuse type and rating.
3 When not in use for a prolonged period, and if possible, store
the compressor carefully in a safe, dry, childproof location.
3 When the compressor is not in use, it should be switched off,
isolated from the mains supply and the air drained from the
tank.
2. INTRODUCTION & SPECIFICATIONS
2.1. INTRODUCTION.
High output units suitable for the professional workshop. Both units
are fitted with two genuine 3hp motors and two identical pumps. Twin
capacitors and a centrifugal switch aid trouble free starting on a 230V
32A supply. They are supplied with a control box that allows stepped
start up. Pumps feature heavy-duty full cast cylinders capped by
alloy heads for improved heat dissipation and long life. Heavy-duty
drive guards protect belt and flywheel that is designed to force air
over the pump to aid cooling. Supplied with full CE certification and
test certificates.
3. PREPARATION
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. It is recommended 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.
3.3. Confirm that the mains voltage corresponds with the voltage
shown on the compressor data plate. Fit a suitable 3 pin
industrial plug - see section 1.1.10. of the Safety Instructions.
3.4. Take care to transport the compressor correctly, DO NOT
overturn it or lift it with hooks or ropes.
3.5. Fit the 4 rubber anti-vibration supports (g.3), raise the
compressor using a suitable pallet truck or fork lift and push
the supports into the base of each foot.
3.6. Position the compressor on a at surface or with a maximum
permissible inclination of 10° (g.1). Site in a well ventilated
area, protected against atmospheric pollution and not in a
place subject to explosion hazard. If the surface is inclined and
smooth, check if the compressor moves whilst in operation.
If the surface is in a raised position, make sure the compressor
cannot fall, securing it in a suitable way.
3.7. To ensure good ventilation and efcient cooling, the compressor’s
belt guard must be at least 100cm from any wall (g.2).
3.8. Remove the plastic transit plug from the oil filler hole (figs.4 & 5)
and replace it with the filler/breather plug. It is a push fit,
ensure that it is pushed fully home.
3.9. Before using the compressor, check the oil level by observing
the sight glass as shown in figs.4 & 5. If the oil is not up to the
max. mark, it should be topped up with synthetic oil (see
section 5.7. for recommended oils). We do not recommend
using mineral oil in these compressors. DO NOT overfill.
2.2. SPECIFICATIONS
Model: ........................................... SAC1276B ...............SAC2276B
Motor Output (HP): ......................................2x3 ........................... 2x3
Voltage / Phase: .................................... 230V/1 ..................... 230V/1
Input current: .............................................. 32A ...........................32A
Speed (rpm): .............................................1636 .........................1280
Air Displacement (cfm/Lm): .................26.8/759 ......................30/850
Max Free Air Delivery (cfm/Lm): ..........19.4/549 ................... 21.8/618
Max Pressure (psi/bar): ..........................145/10 ......................145/10
Tank Capacity (L): .......................................270 ...........................270
Dimensions (WxDxH) (mm): ...... 1550x540x935 ......... 1550x540x960
Net Weight (kg): ..........................................138 ...........................150
Noise (dB.A): .................................................77 .............................77
Noise LwA (dB.A): .........................................97 .............................97
fig.1
fig.2
fig.3
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SAC1276B, SAC2276B Issue:2 - 20/02/12
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fig.4 - SAC1276B
fig.5 - SAC2276B
4.3. To stop the compressor, first turn the main switch (fig.7) to the
'0' position and then turn the switch on the control box (fig.6) to
the '0' position. The compressed air inside the compressor
heads will flow out, making the restart easier and preventing the
motors from being damaged. DO NOT, other than in an
emergency, stop the compressor by switching off at the mains, or
by pulling the plug out, as the pressure relief will not then
operate and motor damage may result upon restart.
4.4. The motors of the compressor are fitted with a thermal breaker
located in the housing on top of the motors. The manual
resetting buttons are located in the end of the housings as
shown in fig.10A. When the individual breaker is tripped, wait for
a few minutes and then press the reset button.
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.7) indicates the pressure inside the main tank,
NOT the pressure supplied to the air equipment.
Should the pressure in the main tank exceed the pre-set switch
maximum, the safety valve will activate.
WARNING! For this reason DO NOT tamper with, or adjust,
the switch or safety valve.
4. OPERATION
WARNING! Ensure that you have read, understood and
apply Section 1 Safety Instructions.
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, and could cause damage to the compressor.
NOTE: 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.
STARTING THE COMPRESSOR
4.1. Check that both switches (on the control box and the pressure
switch housing) are in the OFF (0) position. Plug into the main
electrical supply. To turn the compressor on, turn the switch on
the control box (fig.6) to the '1' position and then turn the switch
on the pressure switch housing (fig.7) clockwise to position 'I'.
The first motor/pump will start up followed a few seconds later
by the second motor/pump.
4.2. When starting the compressor for the first time, leave it running
with no air tools connected to the air outlet. Make sure that the
pressure in the tank rises and that the compressor stops
automatically when the maximum pressure value allowed -
written on the plate and shown on the gauge (fig.7) - is
achieved. The compressor will now operate automatically.
The pressure switch stops the motor when the maximum tank
pressure is reached and restarts it when the pressure falls
below the minimum threshold - approx. 2bar (29psi) less than
the maximum pressure.
fig.6
fig.7
5. MAINTENANCE
In order to keep the compressor in good working condition,
periodic maintenance is essential.
IMPORTANT! Failure to carry out maintenance tasks may
invalidate the warranty on your compressor.
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SAC1276B, SAC2276B Issue:2 - 20/02/12
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WARNING! Before performing any maintenance operation,
switch off the compressor, disconnect from electricity
supply and release all air from the tank (except for 5.3.a)
5.1. OPERATIONS TO BE CARRIED OUT AFTER THE FIRST 50
WORKING HOURS:
a) Check that all bolts/nuts are tight, particularly those retaining
the crankcase and cylinder head.
b) Replace the lubricating oil - see para 5.5.a.
5.2. OPERATIONS TO BE CARRIED OUT WEEKLY:
a) Drain condensation by opening the valve located under the
tank (fig.9). Place a container under the valve and open the
valve by turning anti-clockwise.
WARNING! Take care if there is still pressure inside the cylinder
as water could flow out with coinsiderable force.
Recommended pressure 1 - 2bar max.
b) Check oil level and, if necessary, top up.
5.3. OPERATIONS TO BE CARRIED OUT EVERY 50 HOURS:
(or more frequently, if the compressor operates in a very
dusty atmosphere):
a) Remove the air filter element (fig.8). Using stored air from
the compressor's tank, clean the filter with compressed air.
(Wear eye protection and DO NOT direct air towards the
body or hands). DO NOT operate the compressor without
the filter as foreign bodies or dust could seriously damage
the pump. Replace the filter element and air filter housing.
b) Check for oil leaks.
5.4. OPERATIONS TO BE CARRIED OUT EVERY 100 HOURS:
a) Check the automatic cut-out at max. pressure and the
automatic cut-in at 2bar below.
5.5. OPERATIONS TO BE CARRIED OUT EVERY 400 HOURS:
a) Replace the lubricating oil. For oil specifications see 5.7.
Remove the filler/breather plug, then remove the oil drainer
plug (figs.4 and 5), draining the oil into a container. Drain
when the compressor is hot so that the oil drains rapidly and
completely. Replace oil drain plug and refill through the filler/
breather aperture. Do not overfill. Replace filler/breather
plug.
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.
b) Replace air filter. (fig.8)
c) Check all tube fittings and electrical connections.
d) Inspect pressure tank inside and out for damage or corrosion.
5.6. MAINTENANCE SCHEDULE:
Maintenance Operations Weekly 50hrs 100hrs 400 hrs
Drain condensation
Check oil level
Clean intake filter
Check for oil leaks
Replace oil
Check cut-out
General cleaning of
compressor
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fig.8
5.7. RECOMMENDED OILS
Synthetic oil suitable for temperatures ranging from -5°C to 45°C:
viscosity 5W50. We DO NOT recommend using mineral oil in
these compressors.
Part No. Qty. Description
FSO1 1ltr x 12 Compressor oil fully synthetic
FSO1S 1ltr x 1 Compressor oil fully synthetic
FSO5 5ltr x 1 Compressor oil fully synthetic
5.8. IMPORTANT WARNING - Air contaminants taken into the
compressor will affect optimum performance. Example: Body ller
dust or paint overspray will clog the pump intake lter 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.
fig.9
6. TROUBLE SHOOTING
Fault Cause Remedy
Pressure drop in the
tank.
Pressure switch
valve leaks when
compressor is idle.
Compressor stops
and does not restart.
Compressor does
not stop at max
pressure.
Compressor does
not reach max
pressure.
Compressor noisy
with metallic knock.
fig.10
Air leaks at
connections.
Non-return valve seal
defective.
Power failure.
Motor failure.
Pressure switch fault. Contact Authorised Service
Filter clogged.
Head gasket or valve
fault.
Low oil level.
Bearing or piston
damage.
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.
Discharge all tank pressure.
Referring to fig.11, unscrew
valve cap 'A'. Clean rubber
disc 'B' and its seat. Refit all
parts accurately.
Check electricity supply and
fuse.
Contact Authorised Service
Agent.
Agent.
Replace filter element.
Contact Authorised Service
Agent.
Turn off and top up oil
immediately.
Contact Authorised Service
Agent.
fig.11
Replace air filter
Check tube fittings and
electrical connections
Internal & external
inspection of tank
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 12 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.
Sole UK Distributor, Sealey Group,
Kempson Way, Suffolk Business Park,
Bury St. Edmunds, Suffolk,
IP32 7AR
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Original Language Version
01284 757500
01284 703534
www.sealey.co.uk
Web
sales@sealey.co.uk
email
SAC1276B, SAC2276B Issue:2 - 20/02/12
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