Honeywell HON HSV086 Operation & Maintenance Manual page 22

SM 2/2500 (see drawing 6b)
The following parts have to be replaced in this component.
 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 cylinder 03 to replace O-ring 16
 Remove plunger 05 to replace O-ring 18
 Replace O-ring 18
 Replace O-ring 16
 Fit plunger 05, cylinder 03 and cover 01
 Tighten screw connection 15 (even and diagonally)
 Connect impulse line.
Figure 6b: Pressure converter SM2/2500
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Operation and maintenance manual HON HSV086 22