Heraeus HS 12 - Page 104

Retrofit Kit Instructions Digital display air flow velocity HERAsafe HS/HSP
Valid: 12.2001 50072901 4
6. Disassembly rear wall
( see disassembly instruction 50046989 )
 Separate the sealant with a sharp cutting tool.
 Remove the cross screws
 Remove the rear wall
7. Opening the inspection chamber
 Untighten the two locking screws and remove them
from the hood bracket [4] with the spacers.
 Open the hood.
 Remove the two nuts [7] of the cable retainers,
then remove the cable [6].
 Remove the retaining screws of the two guide rails [2],
then remove the guide rails with the hood brackets.
 Remove the six retaining screws [9] of the cover [8].
 Separate the sealant in the joint [10]
with a sharp cutting tool.
 Remove the cover.
8. Replacement of the downflow filter
 Remove the three retaining screws [3] of the plenum frame.
 Lift off the plenum frame and remove the downflow filter [4] forward.
 Remove plenum frame and plenum bag.