l
Carefully unscrew and take off the magnetic plug (MP 3, 536),
which is situated on the rear lubrication circuit of the motor
bearing
l
Make sure there is no metallic swarf on the magnetic part of the
magnetic plug, clean off as necessary
l
Refit the magnetic plug (MP 3, 536)
CAUTION
It is recommended that the magnetic plug (MP 3, 536) is replaced at
every oil change due to wear and tear of the seal.
Filling in fresh oil for the gears and the
bearings
l
Prepare the necessary oil quantity (see table “Oil quantity”)
NOTE
: The quantity given in these operating instructions serves as a
guideline only. Check the oil level with the help of the oil sight glasses
(OSG, 220/ 222) on the vacuum pump.
l
Make sure that oil drain plugs (ODP, 252/ 262 or 610) have been
correctly fitted and are tight
l
Makes sure that the magnetic plugs (MP 1, 590, MP 2, 592) have
been fitted and tightened up correctly
CAUTION
Oil may be filled through oil filler holes (OFP, 250/ 260) only.
l
Remove oil filler plugs (OFP, 250/ 260)
l
Top up with oil until the oil level is in the target circle of the oil
sight glasses
l
Make sure that the seals of the filler plugs (OFP, 250/ 260) are not
damaged and positioned correctly. Replace seals if damaged.
l
Refit the oil filler plugs (OFP, 250/ 260)
Overhaul
CAUTION
In order to achieve the highest degree of efficiency and a long life
span, the vacuum pump has been assembled and adjusted in
accordance with precisely defined tolerances.
This adjustment will be lost during dismantling of the vacuum
pump.
It is therefore highly recommended that any dismantling of the
vacuum pump going beyond the scope of description in this manual
should be carried out by specially trained Busch service personnel
only.
CAUTION
Risk for the operating safety after improper work on the vacuum
pump.
Risk of explosion!
Approval for operation of the pump will be void!
Any dismantling of the vacuum pump going beyond the scope of
what is described in this manual must be carried out by specially
trained Busch service personnel only.
WARNING
In case the vacuum pump has conveyed gases that have been
contaminated with foreign materials that are dangerous to health,
the oil and condensates will also be contaminated.
These foreign materials can infiltrate the pores, recesses and other
internal spaces of the vacuum pump.
Danger to health when the vacuum pump is dismantled.
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”), which can be downloaded from
www.buschvacuum.com.
Busch service will only accept vacuum pumps that come with a
completely filled in and legally binding signed form.
Removal from Service
Temporary Removal from Service
l
Prior to disconnecting the inlet and discharge lines, as well as the
water piping to and from the motor, make sure that all pipes have
been vented to atmospheric pressure
Recommissioning
After longer periods of standstill:
u
Make sure that the vacuum pump and the primary pump are
switched off and cannot accidentally be switched on again
l
Follow the instructions in chapter “Installation and
Commissioning”
Removal from Service
Page 11
MAX
MIN
MAX
MIN
MAX
MIN
MP 3
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