BUSCH WY 4500 C, Installation And Operating Instructions Manual

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Adjustment values for the temperature sensor
The temperature of the oil is monitored by a temperature sensor TSA
which is fitted to the cover on the B-side.
Depending on the temperature of the oil, first a warning is emitted,
then the pump will eventually be switched off when the temperature
of the oil has reched the corresponding temperature values.
TSA
Oil T
Warning
T
Switch off
YLC 250 B 80°C 90°C
Connecting Lines/ Pipes
In case the suction line is equipped with a shut-off valve:
u
Connect the suction line
l Connect the discharge line
l Make sure that cooling air inlets and outlets are not covered or
obstructed and that the cooling air flow is not affected adversely in
any other way
Filling up with Oil
The gears and the bearings are oil-lubricated.
In case the pump has been preserved with conservation oil:
u Drain any remaining conservation liquids
CAUTION
Operation without oil will destroy the vacuum pump within a short
period of time.
Prior to commissioning the vacuum pump, make sure that oil is filled
in.
The vacuum pump can be delivered with or without oil.
In case the pump is delivered filled with oil, the oil used is PFPE oil.
Dispose of the used oil according to applicable environmental
protection regulations.
NOTE : The quantity of oil 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.
CAUTION
In case the vacuum pump has been treated with conservation oil:
Synthetic oils (except for oils based on poly-olefin) are incompatible
with mineral oils and conservation oils.
Risk of foam building leading to the destruction of the vacuum
pump.
CAUTION
Oil may only be filled in through oil filler holes (OFP, 250/ 260)
Remove oil filler plugs (OFP, 250/ 260) only if the vacuum pump
and the primary pump are at a complete standstill.
The vacuum pump must only be operated with the oil filler plugs
(OFP, 250/ 260) firmly tightened up.
l Remove oil filler plugs (OFP, 250/ 260)
l
Fill in the relevant quantity of oil as detailed in the table “Oil
Quantity”
l Make sure that the oil level at the gears and bearings 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)
l Switch on the vacuum pump
In case the suction line is equipped with a shut-off valve:
u Close the shut-off valve
In case the suction line is not equipped with a shut-off valve:
l
Cover the suction flange (IN) with a rubber mat
l Let the vacuum pump run for a few minutes
l Switch off the vacuum pump and wait for a few minutes
l
Make sure that the oil level at the gears and bearings is in the
target circle of the oil sight glasses
l Make sure that the vacuum pump is switched off and cannot
accidentally be switched on again.
u Top-up with oil
In case the suction line is equipped with a shut-off valve:
u Open the shut-off valve
In case the suction line is not equipped with a shut-off valve:
u
Remove the rubber mat from suction flange and connect the
suction line
Saving the operating parameters
As soon as the vacuum pump is working under normal conditions after
being switched on:
l Measure the working current of the motor and save it as reference
value for all future maintenance and repair work
Recommendations on operation
Application
CAUTION
In case of disrespect of the above, risk of damage or destruction of
the vacuum pump and adjacent system components!
Risk of Injury!
The vacuum pump has been designed for use in the semiconductor
industry under clean room conditions. The roots pumps can only be
used in conjunction with primary pumps in vacuum systems. They can
be used to draw gases and mixtures of gases.
The end user must make sure that the system complies with national
and international safety regulations and that all safety measures are
followed, when drawing toxic, inflammable and/ or explosive gases.
Max. permissible number of startings per hour: 6.
These pumps are not suitable for the drawing of explosive mixture.
Before using the vacuum pump with aggressive gases, imperatively
contact your local Busch Agency.
Do not use the pump for another process without general overhaul, as
gases or products can remain inside the pump.
Installation and Commissioning
Page 8
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