EFA 001 606 885, Operation Manual, Page: 17 / 24

Operating instructions
9
MAINTENANCE
Warning
! - electrical tension
Even if the machine is switched off, there will still
be current in some of the circuits, and electric
shocks can cause injury if work is being done on
them. The master switch must be switched off or
the plug pulled out of the mains socket before any
maintenance work is done.
Warning
! - air pressure in the machine
Even if the machine is switched off, the air in the
pipes can still be under pressure, and the
unexpected escape of compressed air can cause
injury if work is being done on them. Pressure must
always be let off from the machine before any
maintenance work is done.
LETTING AIR OFF FROM THE MACHINE
•
The compressor block releases its air pressure
automatically if the plant is switched off in the
proper way (see “Starting up and operating”).
•
To deaerate the air receiver open the
condensate drain and let the total pressure off.
TO DRAIN THE AIR RECEIVER OF
CONDENSATE
On units with air receiver open the condesate drain
„under pressure“ until pure compressed air issues.
Then close the drain again. Condensate contains
oil and must therefore be disposed of in an
environmentally responsible way.
CHECK THE OIL LEVEL
CAUTION! Condensation can ruin the machine
completely
If the machine is set up in a cool, damp place, such
as in a cellar, condensation can form in the
lubricating oil. This is particularly likely to happen if
the compressor is run for too short a time and thus
does not reach its full operating temperature. This
condensation then reduces the lubricating effect on
pistons and bearings, and that could destroy them
completely. The signs of condensation in the
lubricating oil are an excessively high oil level, a
milky colour in the oil, or drops of water in the
inspection window. If any of these occur, the oil
must be changed at once.
Remedy: install the compressor in a warm, dry
room, or use a smaller compressor.
•
Check the oil level weekly, and top up with an
appropriate oil if necessary.
•
Never mix oil of different types or quality grades
together.
OIL-LEVEL CONTROL ON UNITS WITH OIL DIP
STICK
⇒
Extract oil dip stick
•
The oil level must be between the notches on
the oil dip stick
OIL-LEVEL CONTROL ON UNITS WITH OIL-EYE
⇒
The oil level shown in the oil-eye must be within
the circle.
A.)
Oil -eye B.) Oil dip stick
SUITABLE TYPES OF OIL
Mineral oils Synthetic
oils
Single-grade
oil
Multi-grade
oil
Actro EP
VDL 150 Actro EP
VDL 100 Regis SAE
20W-20
Xenic EP
VDL 100
BP Energol
RC 150
BP Energol
RC 100
BP Energol
HD-S SAE
20 W 20
BP Energol
RC-S100
Shell
Corena Öl
H150D
Shell
Corena Öl
H100D
Shell Rotella
X 20 W 20
V-Öl 7010
Compressor
oil 3022 N
Compressor
oil 3021 N
Essolube
HDX
Plus + 30
Mobil Rarus
429
Mobil Rarus
427
Mobil Rarus
829
Mobil Rarus
827
Liqui
Moly LM 500
OIL CHANGE
Warning
! - hot oil
Compressor oil can be very hot, and there is a
danger of being scalded. Take all necessary care
with this work.
OIL-CHANGE INTERVALS
•
Mineral oil: every 500 operating hours
•
Synthetic oil: every 1,000 operating hours
•
Carry out an oil change at least once a year.
PROCEDURE
⇒
Oil quantity: see technical data.
⇒
Let off the used oil at normal operating
temperature.
⇒
Close the oil outlet screw.