7.4
[en] 02/2014
Installation and operating manual - NK 31ROTORCOMP VERDICHTER
7.3.3 Filling with oil
Attention
Observe the oil recommendation, see “Lubricants
and Operating Materials”. Add oil of the same oil
type from the same manufacturer.
Switching over to another oil type can require the
compressor module to be ushed.
ROTORCOMP recommends also replacing the
oil lter during an oil change.
• Replace the oil lter if necessary
• Pour oil into the ller neck on the separator
tank up to the maximum level and screw the
screw plug 1 onto the ller neck by hand
(see Figure 7-2).
• Switch on the screw compressor and allow it to
run for approx. three minutes.
• Oil level check:
Top up the missing oil quantity again up to the
maximum level.
• Check sheet entry (see chapter 7.7 “Mainte-
nance check sheet”).
7.4 Oil lter
Warning
Rotating, pressurized and hot components,
DANGER OF INJURY
– The unit parts, oil and oil ller plug may be
over 80°C/176°F; danger of burns!
– Wear personal safety equipment!
The oil lter replacement may only be carried
out at a standstill and with the screw compressor
system completely discharged.
7.4.1 Oil lter replacement intervals
According to the specications of the system
manufacturer.
For the reference values for the screw compres-
sor compact module, see chapter 7.8 “Mainte-
nance intervals”.
7.4.2 Oil lter replacement
Figure 7-3
• Switch off the system and completely release
the pressure in the system.
• Remove the oil lter cartridge 1 with a suitable
tool, e.g. oil lter strap wrench.
• Oil the gasket 2 on the new oil lter cartridge 1
with oil of the same oil type as in the compres-
sor module.
Note
Dispose of the old oil lter cartridge according to
the applicable regulations.
• Screw the new oil lter cartridge onto the con-
nection nipple 3 and tighten by hand. No tool is
required.
• Switch on the screw compressor.
• The oil lter must then be checked for leaks
with the system running.
• Oil level check:
Top up the missing oil quantity again up to the
maximum level.
• Check sheet entry (see chapter 7.7 “Mainte-
nance check sheet”).