3
Figure 3
Figure 4
MAINTENANCE
WARNING: Disassemble carefully - spring load
forces present.
A. If excessive leakage occurs at valve seat,
disassemble the relay. Clean poppet and seat with
soft, dry cloth (See Figure 4).
B. If relay does not function properly due to
contamination by foreign matter, disassemble and
clean all metal parts with non-flammable solvent
and dry thoroughly.
C. After reassembly, check for external leakage.
Retighten assembly screws as necessary. Gasket
cement should not be used to seal leaks due to the
possibility of plugging small passages or
damaging the operating characteristics of the
diaphragms.
CAUTION:
If cleaning is required, do not subject "O" rings,
valve poppets, diaphragms or gaskets to cleaning
fluid, acetone, or any halogenated hydrocarbons such
as vapor degrease liquids, etc. Clean only with a soft,
dry cloth.
Upon reassembly, all "O" rings are to be
lubricated with a silicone-type lubricant. Do not
permit lubricant to get on poppet or valve seats.