MAINTENANCE
37
9/275, 9/305, 12/250, 17/240, 21/220
COMPRESSOR OIL FILTER
Refer to the MAINTENANCE CHART in this section for the
recommended servicing intervals.
Removal
Clean the exterior of the filter housing and remove the spin-on
element by turning it in a anticlockwise direction.
Inspection
Examine the filter element.
Reassembly
Clean the filter gasket contact area and install the new element by
screwing in a clockwise direction until the gasket makes contact with
the filter housing. Tighten a further
1
/
2
to
3
/
4
of a revolution.
COMPRESSOR OIL SEPARATOR ELEMENT
Refer to the SERVICE / MAINTENANCE CHART in this section for
service intervals.
Removal
Disconnect all hoses and tubes from the separator tank cover plate.
Remove the drop-tube from the separator tank cover plate and then
slide the cover plate towards the airend
. Remove the separator
element.
Inspection
Examine the filter element. Examine all hoses and tubes, and
replace if necessary.
Reassembly
Thoroughly clean the orifice/drop tube and install a new o-ring
before reassembly. Install the new element.
Reposition the cover plate, taking care not to damage the o-ring,
and replace the cover plate screws tightening in a criss-cross pattern
to the recommended torque (refer to the TORQUE SETTING TABLE
later in this section).
Replace the drop-tube and reconnect all hoses and tubes to the
separator tank cover plate.
Replace the compressor oil (refer to LUBRICATION later in this
section).
COMPRESSOR OIL COOLER AND ENGINE RADIATOR AIR
CHARGE COOLER
When grease, oil and dirt accumulate on the exterior surfaces of the
oil cooler and radiator, the efficiency is impaired. It is recommended
that each month the oil cooler and radiator be cleaned by directing a jet
of compressed air, (carrying if possible a non-flammable cleaning
solvent) over the exterior core of the cooler/radiator. This should
remove any accumulation of oil, grease and dirt from the exterior core
of the cooler so that the entire cooling area can radiate the heat of the
lubricating and cooling oil/water into the air stream.
AIR FILTER ELEMENT
The air filter should be inspected regularly (refer to the SERVICE/
MAINTENANCE CHART) and the element replaced when the
restriction indicator lamp illuminates. The dust collector box(es) should
be cleaned daily (more frequently in dusty operating conditions) and
not allowed to become more than half full.
The safety element should be renewed every 2000 hours or every
other main filter element change, whichever comes first.
Removal
Clean the exterior of the filter housing and remove the filter element
by releasing the nut.
If the safety element is to be renewed, thoroughly clean the interior
of the filter housing prior to removing the safety element.
Inspection
Check for cracks, holes or any other damage to the element by
holding it up to a light source, or by passing a lamp inside.
Check the seal at the end of the element and replace if any sign of
damage is evident.
Reassembly
Assemble the new element into the filter housing ensuring that the
seal seats properly.
Secure the element in the housing by hand tightening the nut.
Assemble the dust collector box parts, ensuring that they are
correctly positioned.
Before restarting the machine, check that all clamps are tight.
WARNING: Do not remove the filter(s) without first making sure
that the machine is stopped and the system has been
completely relieved of all air pressure.
(Refer to
STOPPING THE
UNIT
in the
OPERATING INSTRUCTIONS
section of this manual).
CAUTION: If there is any indication of the formation of varnishes,
shellacs or lacquers on the filter element, it is a warning that the
compressor lubricating and cooling oil has deteriorated and that it
should be changed immediately. Refer to LUBRICATION later in this
section.
CAUTION: Start the machine (refer to PRIOR TO STARTING and
STARTING THE UNIT in the OPERATING INSTRUCTIONS section
of this manual) and check for leakage before the machine is put back
into service.
WARNING: Do not remove the filter(s) without first making sure
that the machine is stopped and the system has been
completely relieved of all air pressure.
(Refer to
STOPPING THE
UNIT
in the
OPERATING INSTRUCTIONS
section of this manual).
CAUTION: Start the machine (refer to PRIOR TO STARTING and
STARTING THE UNIT in the OPERATING INSTRUCTIONS section
of this manual) and check for leakage before the machine is put back
into service.
WARNING: Hot engine coolant and steam can cause injury.
When adding coolant or antifreeze solution to the engine
radiator, stop the engine at least one minute prior to releasing
the radiator filler cap. Using a cloth to protect the hand, slowly
release the filler cap, absorbing any released fluid with the cloth.
Do not remove the filler cap until all excess fluid is released and
the engine cooling system fully depressurised.
WARNING: Follow the instructions provided by the antifreeze
supplier when adding or draining the antifreeze solution. It is
advisable to wear personal protective equipment to prevent skin
and eye contact with the antifreeze solution.
CAUTION: Never remove and replace element(s) when the machine
is running.
CAUTION: If inspection reveals damage to the main element, the
safety element must be replaced.
CAUTION: Safety elements must not be cleaned or re-used.
