VACUUBRAND PC 3001 VARIO emission condenser Peltronic - Manual (Page 112)

page 112 of 120
Cleaning and replacing components
Replacing the overpressure safety relief device:
➨
Loosen the union nut at the inlet of the exhaust vapor condenser.
➨
Pull the PTFE hose out of the inlet of the exhaust vapor condenser.
➨
If necessary, pull off the old pressure relief valve and install the new
one. Check for correct position of the PTFE-film under the pressure
relief valve.
➨
Feed the PTFE hose into the inlet of the exhaust vapor condenser.
Fasten union nut.
Overpressure
safety relief device ............................ 638821
(at exhaust waste vapor condenser)
Catchpot
0.52 qt (500 ml), coated................................................................ 638497
O-ring 28 x 2.5 ........................................................................... 3120553
(FPM) at the spherical ground joint of the catchpot at the inlet
O-ring 28 x 2.5 ............................................................................. 638304
FEP bonded for increased chemical resistance
If the pump does not achieve the ultimate vacuum:
- Whenever the diaphragms and valves have been replaced, a break-in
period of several hours is required before the pump achieves its ulti-
mate vacuum.
- In case of an unusual noise, switch off pump immediately and check
clamping disc positions.
If the specified ultimate vacuum is not achieved, and if this does not
change after the break-in period:
Check hose connectors at pump heads for leaks. If necessary recheck
valve seats and pump chambers.