3. Servicing
Cycle components
SMGB0097 rev.0 - 07/2015
71
3
3.3.6 Filter drier
There are two possible main maintenance operations to do with the filter drier: the substitution of the inner core due to its
adsorption saturation or the substitution of the whole unit due to some damage.
Solid core substitution
Follow the next steps in order to proceed to replace the inner core of the filter drier:
1
Remove the 8 screws (1) that fixes the top cov
-
er (2). Carefully, remove the spring (3), the top
cover gasket (4), the wing nut (5) and the lock
washer (6).
2
Retire the top plate (7) and then the felt gasket
(8)
3
Take the solid core (9) out and proceed to the
replacement.
4
When reassembling after replacing the solid
core, perform the procedure in the reverse order
than removing.
N O T E
At reassembling, oil or grease the top cover gasket
and the thread of the cover screws.
1
2
3 4 5 6
7
8
9
Filter drier unit replacement
Replace the filter drier unit if any leakage or malfunction is detected. Proceed following the steps explained below:
1
Protect the surroundings of the unit from the
heat of the blowtorch.
2
Remove the brazed parts using a blowtorch and
previously cooling the pipe side and the filter
drier unit with wet cloth in order to avoid brazing
material enter inside the pipes.
3
Unscrew the nuts of the clamping bracket to re
-
lease the filter drier.
C A U T I O N
After blowtorch operations, filter drier and the sur
-
roundings may be too warm. Take special care to
use insulation protection.
Brazed parts
Clamping bracket
Front view
Brazed parts
Clamping bracket
Rear view
