VACUUBRAND PC 2001TE VARIO - Manual (Page 39)

page 39 of 50
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check
carefully the validity of this document with respect to his product. manual-no.: 99 91 35 / 11/04/2008
Tools:
- diaphragm key w/f 46
- open ended wrench w/f 15 / 17
- hex key size 4/5
- Phillips screw driver size 2
Set of seals MD 1C (4 diaphragms, 8 valves, diaphragm key) ........................................ cat. no. 69 68 28
Use open-ended wrench to remove union nut at the inlet of the
pump.
Remove hose from the fitting.
Do not remove the elbow fitting from the pump head.
☞ Through reassembly a leak may result.
Cleaning and inspecting the pump heads:
☞ ☞ ☞ ☞ ☞ Please read section ”Replacing diaphragms and valves” completely before start-
ing maintenance.
Partially the pictures show pumps in other versions. This doesn´t influence replacing diaphragms and
valves of the pump.
Replacing diaphragms and valves
All bearings are encapsulated and are filled with long-life lubricant. Under normal oper-
ating conditions, the pump is maintenance free. The valves and the diaphragms are
wear parts. If the rated ultimate vacuum is no longer achieved or in case of increased
noise level, the pump interior, the diaphragms and the valves must be cleaned and the
diaphragms and valves must be checked for cracks or other damage.
Depending on individual cases it may be efficient to check and clean the pump heads
on a regular basis. In case of normal wear the lifetime of the diaphragms and valves is
> 10000 operating hours.
☞ Prevent internal condensation, transfer of liquids or dust. The diaphragm and valves
will be damaged, if liquids are pumped in significant amount.
If the pump is exposed to corrosive gases or vapour or in case of deposits, mainte-
nance should be carried out frequently.
☞ Regular maintenance will improve the lifetime of the pump and also protect both
personel and environment.
Before starting maintenance vent the system, isolate the pump and other compo-
nents from the vacuum system and the electrical supply. Wait two minutes after iso-
lating the equipment from mains to allow the capacitors to discharge. Drain condensate
if applicable, avoid the release of pollutants. Allow sufficient cooling of the pump. En-
sure that the pump cannot be operated accidentally. Never operate the pump if
covers or other parts of the pump are disassembled. Never operate a defective or
damaged pump.
Ensure that the maintenance technician is familiar with the safety procedures which
relate to the products processed by the pumping system.
Attention: The pump might be contaminated with the process chemicals that have
been pumped during operation. Ensure that the pump is decontaminated before main-
tenance and take adequate precautions to protect people from the effects of danger-
ous substances if contamination has occurred.
☞ Wear appropriate safety-clothing when coming in contact with contaminated com-
ponents.