Gardner Denver ESM 30, Оригинальное руководство пользователя

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8. Service and maintenance
43
If the oil fine separator is monitored (option), too high a
differential pressure is indicated on the keypad of the
compressor control GD Pilot MK. When the
corresponding warning lights up, change the oil fine
separator.
Fig. 19 b
Change the oil fine separator as follows:
•
Switch the screw compressor unit off and make sure
that it is depressurised and no voltage is supplied.
For this, while the system is switched off carefully
open the ballcock (- 1 -
Fig. 19
b) on the
downstream cooler until the system has been bled,
then close the stopcock again.
•
Loosen the plastic tube of the oil extractor
(- 2 - Fig. 19 a).
• Loosen the plastic tube of the control air line
(- 3 - Fig. 19 a).
•
Loosen all hexagonal head screws from the
pressure control valve.
•
Loosen the two screws in the swivel direction of the
pressure control valve and remove, then the valve
can be swivelled inwards.
•
Remove all hexagon screws (- 7 - Fig. 19 a) on the
circumference of the pressure reservoir’s cover.
• The cheese head screw for lifting the reservoir cover
(- 8 - Fig. 19 a) must be screwed in clockwise until
the cover is lifted off by some mm.
•
Swivel the reservoir cover with pressure holding
valve by 180° (- 1 - Fig. 19 a).
•
Remove used oil fine separator (- 1 - Fig. 19 a).
•
Clean sealing faces and, if required, remove and
clean O-rings.
•
Install new oil fine separator.
•
Swivel reservoir cover back to the initial position
•
Turn cheese head screw (- 8 - Fig. 19 a)
counterclockwise until the reservoir cover is loosely
lying on the pressure reservoir flange
• Screw down all hexagonal head screws, with
exception of the two screws lying in the swivel area
of the pressure control valve and tighten crosswise.
•
Swivel the pressure control valve back to its starting
position and assemble with the appropriate screws.
Then assemble the remaining hexagonal head
screws in the lid of the vessel and tighten.
•
Tighten (clockwise) cheese head screw for lifting the
reservoir cover (- 8 - Fig. 19 a) to protect it against
unwanted turning
•
Reassemble all dismantled pipes to the pressure
vessel and assemble oil suction again.
Changing intervals for oil fine separator cartridge
The operating conditions (e.g. coolant temperatures),
the operating modes and the quality of the intake air
(e.g. content of dust, content of gaseous foreign matter
such as SO
2
, solvent vapours, etc.) have a strong
influence on the service life of the filters (air filters, oil
filters, fine separators).
Where such conditions exist the filter element may
require changing more frequently.
8.7 Change of air intake filter
Fig. 20
1 Air intake filter
2 Intake filter monitor (visual)