9 | Cleaning and servicing
Büchi Labortechnik AG
102/118
Operation Manual Lyovapor™ L-300/L-300 Pro
1
2
1
2
24.4L
24.4L
33.5L
u
Tap the function
[Start]
on the function bar.
ð
The leak test starts.
ð
The status bar shows the status Leak Test.
ð
When the leak test is completed, the
[Leak test]
tab indicates whether the leak
test was successful.
ð
The leak test is passed if the measured leakage rate is less than the pre-set rate
of 10.10 mbar*L/h.
NOTE
To test the leak-tightness of the manifold drying rack, carry out another leak test
with the manifold drying rack installed.
Troubleshooting after failed leak test
Possible cause
Action
Top-mount drying rack not correctly fit-
ted
Fit the top-mount drying rack correctly.
O-rings dirty
Wipe down the O-ring with a damp cloth.
O-rings damaged
Check O-rings and replace if necessary.
Groove of O-rings dirty
Wipe groove of O-rings with a damp
cloth.
KF clamps not closed
Close the KF clamps.
KF seals dirty
Wipe down the KF seals with a damp
cloth.
KF seals damaged
Inspect KF seals and replace as necessary.
Pump oil dirty
Service according to manufacturer's in-
structions.
Leaking manifold valves
(only if manifold drying rack installed)
Replace leaking manifold valve.
Locate leaking manifold valve. See Chap-
ter 10.3 "Locating leaking manifold
valve", page 105
