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© 2017 Honeywell International Inc
Operation and maintenance manual HON HSV086
21
5.3
Pressure converters
SM 1.x-A
(see figure 6a)
SM90 (see figure 6b) (to be certified)
SM2/2500 (see figure 6c) (to be certified)
SM 1.x-A
The following parts have to be replaced in this component.
Diaphragm
02
O-ring
16
O-ring
18
To replace these parts, the following steps are to be taken.
Disconnect impulse line 21
Unscrew screw connections 15
Remove cover 01
Remove diaphragm 02
Remove bottom seat 05 to replace O-ring 18
Replace O-ring 18
Replace O-ring 16
Fit bottom seat 05, new diaphragm 02 and cover 01 with O-ring 16
Tighten screw connection 15 (even and diagonally)
Connect impulse line.
Figure 6a: Pressure converter SM1.x-A