fig.4
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.
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. shown in fig.2A.
When the individual breaker is tripped, wait for a few minutes
and then press the reset button.
5.2.
Operations to be carried out weekly:
a) Drain condensation by opening the valve located under the
tank (fig.7). 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.6). 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 contamination could seriously damage
the pump. Replace the filter element and air filter housing.
b) Check for oil leaks.
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 Refer to fig.3
4.1.
Connect the mains supply and pull the pressure switch up to its
'on' position, see fig.5.
4.2.
Turn the master power switch 'A' on the control unit to the 'I'
position - power On (signified by the white indicator light
'E' coming on.)
4.3.
Turn switch 'B' to start the compressor, position 1 is
compressor unit 1 operating only, position 2 is compressor unit
2 operating only, position 3 is both compressor units operating
at the same time, at staggered starting times.
4.4
.
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.5) - 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.
4.5.
To stop the compressor, first turn the main switch A (fig.3) to
the '0' position and then turn the switch B on the control box
(fig.3) 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.
4.6.
The motors of the compressor are supplied with a manual reset
amperometric thermal-breaker, located on the terminal board
cover, see fig.4. When the breaker is tripped, use the key to
open the door, wait for a few minutes, and reset the breaker/s
manually.
4.7.
The safety device is automatic. When the thermal breaker is
tripped, wait for a few minutes, the pressure switch is released
to the 'O' Off position.
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) 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.
fig.5
Original Language Version
© Jack Sealey Limited
SAC4505555B,SAC5507575B Issue: 1 - 17/12/14
4. OPERATION
5. MAINTENANCE
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
dismantle 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.
