9
4. Operations
4.1 Lubricant Filling
The pumps are designed to operate with Lubricant "F3" (not
supplied with the pump); "F3" must be ordered separately
(see Section 9.1.).
The pumps must be filled with Lubricant "F3"
before operating.
If "F3" is heated to over 300 °C, poisonous gases
damaging to the respiratory system are produ-
ced. "F3" must not be allowed to come into
contact with tobacco products (danger of
poisoning when lighting!).
When handling chemicals, the relevant manufacturer's
instructions must be followed.
➡
Unscrew lubricant filler screw and, using the syringe pro-
vided, fill in approx. 35 cm3 Lubricant "F3".
➡
Screw in lubricant filler screw with O-ring.
When the pump is operating, the sight glass must be at least
one third full of lubricant.
– If a Pumping Station Control Unit TCS 303/304 is in use,
switch S1 on the electronic drive unit starts turbopump,
backing pump and recycled water cooling unit (if fitted)
jointly.
Take care when pumping hazardous gases.
Comply with all the gas manufacturer's safety
instructions.
4.4. Heating (Only Pumps With Heating
Jackets)
Heating turbo pumps and vacuum chambers accelerates the
attainment of final pressures.
The heating period is dependent on the level of contamination
and the required final pressure. Heat for at least four hours.
➡
Switch on turbo pump heating via switch S2 on the
electronic drive unit.
High temperatures are generated when turbo
pump or vacuum chamber are baked out.
Contact with hot parts can cause burns, even
after the heating has been switched off.
Heating jackets, pump casing and vacuum
chamber should all be insulated when fitting.
Do not touch heating jackets, pump casing and vacuum
chambers during baking out.
S2
S1
Electronic drive unit switches (schematically)
S1 Turbopump ON/OFF
S2 Heating ON/OFF
4.2. Before Switching On
➡
Open sealing gas supply.
➡
Open cooling water supply and check flow.
4.3. Switching ON
Turbo pump rotors rotate at high speed. When
the high vacuum flange is open there is a
danger of injury. In addition, objects can fall
into the pump and cause serious damage.
Therefore never operate the pump with open
high vacuum flange.
➡
Switch on turbopump with switch S1 on the electronic
drive unit.
Lubricant filling
71 Lubricant filler screw
73 Sight glass
75 O-ring
