13
Inserting the Exhaust Filters
Insert the new exhaust filters (120) with the new o-rings.
Be sure to fit the exhaust filters (120) and ensure it is installed in the
correct position of oil separator (75).
Make sure the top end of the bolt in the center of exhaust filter spring
(125) projects about 2-5 threads.
With special tools, mount the exhaust filter spring (125), fitting the end
in the socket on the oil separator (75); tighten the screws in the slots
of exhaust filters (120).
Fasten the screws on the exhaust filter spring (125), and make the
nuts touch the steel strip on the spring.
Make sure the sealing seat (141) of discharge cover (155) is clean
and intact; replace the damaged one.
Mount the discharge cover (155) with sealing seat (141), hex bolts
(146) and locking washers on the oil separator (75).
When necessary, connect the discharge pipeline
NOTE
: During operation the exhaust filters get saturated with oil. It is
therefore normal that the oil level will drop slightly after replacement of the
exhaust filters.
Overhaul
Removal from Service
Temporary Removal from Service
Prior to disconnecting pipes/lines make sure that all pipes/lines are
vented to atmospheric pressure.
Recommissioning
After longer periods of standstill:
Make sure that the vacuum pump is shut down and locked against
inadvertent start up.
Remove the cover around the fan of the drive motor (400).
Slowly rotate the fan wheel by hand several revolutions in the intended
direction of rotation [see stuck on or cast arrow (431).
Mount the cover around the fan wheel of the drive motor (400).
If deposits could have gathered in the vacuum pump:
Flush the vacuum pump (see “Maintenance” in page 8)
Observe the chapter “Installation and Commissioning” (page 5)
Dismantling and Disposal
WARNING
In case the vacuum pump conveyed gas that was contaminated
with harmful foreign material the operating fluid and the exhaust
filter(s) will be contaminated with harmful material.
Harmful material can reside in pores, gaps and internal spaces of
the vacuum pump.
Danger to health during dismantling of the vacuum pump.
Danger to the environment.
During dismantling of the vacuum pump personal protective
equipment must be worn.
The vacuum pump must be decontaminated prior to disposal.
Prior to shipping, the vacuum pump must imperatively be
decontaminated.
Handle the oil, oil filter and exhaust filter separately according to
applicableregulations.
CAUTION
Vanes (22) can stick after a long period of standstill.
Risk of vane breakage if the vacuum pump is started with the
drive motor .
After longer periods of standstill the vacuum pump shall be
turned by hand.
WARNING
In case the vacuum pump conveyed gas that was contaminated
with foreign materials which are dangerous to health, harmful
material can reside in oil and condensates.
Contaminating matters may reside in air bores, gaps and internal
parts of vacuum pump.
Danger to health during dismantling of the vacuum pump.
Danger to the environment.
Prior to shipping, the vacuum pump must imperatively be
decontaminated and the degree of contamination must be
documented in a declaration of decontamination (“Declaration of
Decontamination”).
CAUTION
In order to achieve best efficiency and a long life the vacuum
pump was assembled and adjusted with precisely defined
tolerances.
This adjustment will be lost during dismantling of the vacuum
pump.
It is therefore strictly recommended that any dismantling of the
vacuum pump that is beyond of what is described in this manual
shall be done by the Greenco service.
CAUTION
The non-OEM spares market offers exhaust filters that are
geometrically compatible with Greenco-vacuum pumps, but do not
feature the high retention capacity of genuine Greenco-exhaust
filters and deteriorate the service life and the efficiency of the
vacuum pump due to their increased back pressure.
Increased risk of damage to health .
Adverse effect on efficiency and service life .
In order to keep the emission on the lowest possible level and to
preserve efficiency and service life only genuine Greenco-exhaust
filters shall be used.
