Freeze-dryer Epsilon 1-4 LSCplus
Freeze-dryer Epsilon 2-4 LSCplus
8 Maintenance and service
Version 04/2014, Rev. 2.13 of 01/12/2021
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Translation of the original operating manual
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8.1.2.2
Special equipment: Stainless steel door latch at the loading door
Systems that are equipped with a stainless-steel or acrylic glass door with a
stainless-steel door latch have a slide pad on the door latch. This slide pad
is included in the scope of supply as a spare part. It must be inspected
regularly for signs of wear. When its thickness is < 0.5 mm, it must be
replaced.
1
Door latch
2
Slide pad
(part no. 177270)
3
Torx screws
Fig. 77: Door latch and slide pad
Replacing the slide pad:
Unscrew the two screws of the slide pad with a Torx
®
TX10 screwdriver,
remove the old slide pad, and install the new one.
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8.1.3
Aeration valve
Contaminants such as product residues may lead to an insufficient vacuum.
In this case, the aeration valve must be cleaned.
• Switch the freeze-dryer off and disconnect the mains plug.
• Remove the valve core.
• Clean the valve core and the opening with a moist cloth.
• Clean the O-rings and inspect them for any damage. Damaged O-rings
must be replaced.
1
Valve opening
2
Valve core
3
O-rings
Fig. 78: Valve opening and valve core with O-rings
(example, varies depending of the type of freeze-dryer)