Service And Maintenance; Maintenance Recommendations; Maintenance Electric Motor; Maintenance And Inspection Schedule - Gardner Denver L15 Original Operating Manual

10. Service and maintenance

10 Ser vice an d m ai nte na nce

10.1 Maintenance recommendations

NOTICE
The screw compressor can only work to your
full satisfaction if maintenance work is done
carefully in the intervals specified by us.
To make this easier for you, the system comes with the
"Maintenance and Inspection Book for Gardner Denver
Compressors", in which you can enter maintenance
work in the specified intervals.
You can also have this maintenance work done by our
trained installation staff. Ask your Gardner Denver
representative about our maintenance service options.

10.2 Maintenance electric motor

The maintenance of the electric motor is to be
performed in line with the motor operating instructions.
10.3 Maintenance and inspection
schedule
DANGER
High voltage – Hazard of shock, burn, or
death
• Be careful with electricity: only work on
screw compressors which are not
powered.
• Only for L15RS-L22RS: There is a risk of
electric shock from charged capacitors!
Disconnect the system from the mains
and wait 10 minutes before touching
electrical components. The power
capacitors need this time to discharge.
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Warning
Some parts of the system will still be
pressurized after the system has been
switched off. Small parts propelled at high
speed by compressed air can penetrate the
skin or destroy an eye.
Only perform checks and maintenance after
observing the following:
• Press the STOP button on the control
panel and wait until the screw
compressor comes to a stop and the
screw compressor unit is depressurized.
• The pressure gauge shows no more than
< 4.4 PSI.
• Shortly after shutting off the screw
compressor unit a small residual
pressure may remain.
• Therefore, before any maintenance work,
the screw compressor unit must be
relieved by slowly opening the screw
plug (oil filling opening) with integrated
air vent slots.
• Set the on-site main switch to "0" (OFF)
and secure it against being switched on.
CAUTION
Burn hazard – Hot surfaces
• Be careful of the hot surfaces of machine
parts when carrying out checks, making
settings and doing maintenance.
Intervals apply for normal industry atmosphere and
operational conditions. If there is some uncertainty, set
the oil change interval by performing oil analysis.
If there is a large amount of dirt, shorten the
maintenance intervals as needed.
For ordering numbers see the replacement parts list.