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TABLE OF CONTENTS
1. Description ............................................................................................................................. 3
2. Installation ............................................................................................................................. 3
3. Operation ............................................................................................................................... 4
4. Special Conditions for Safe Use ............................................................................................. 4
5. Hazardous Location Usage ..................................................................................................... 4
6. Servicing and Maintenance .................................................................................................... 4
6.1. Servicing the LF-301 ................................................................................................ 5
6.1.1. Accessing the Main Valve Assembly ........................................................ 5
6.1.2. Adjusting the Set Point ............................................................................ 6
6.1.3. Figure 1 – Sectional View of the LF-301 ................................................... 7
7. Technical Data ........................................................................................................................ 8
8. Warranty Statement .............................................................................................................. 8
Annex A. LF-310/311 – ‘Solid Disk’ Main Valve Design ............................................................. 9
A.1. Description.............................................................................................................. 9
A.2. Servicing .................................................................................................................. 9
A.2.1. Figure 2 – Detail A: LF-310/311 ‘Solid Disk’ MVA (sectional) .................. 9
A.2.2. Figure 3 – Exploded View of LF-310/311 ‘Solid Disk’ MVA ..................... 9
