EIASMANUAL 0918
KAM CONTROLS, INC.
9
Re-tighten the Hex Socket Cap Screw.
Tighten the Hex Nuts holding the Locking Collar from ¼ to ½ of a turn. The Hex Nuts holding down the Locking
Collar should never be over tightened. Their major function is to apply light pressure on the Chevron Packing to
ensure a secondary seal between the Seal Housing Body and the Insertion Shaft. Fig. 3-9.
15.
16.
The PRV arrives set at the maximum cracking pressure for the spring installed (normally a yellow spring for 750
psi). If the maximum pressure does not exceed 350 psi, set the cracking pressure to the lowest cracking pres-
sure for the PRV by twisting the cap 8 turns counter-clockwise. The PRV is going to have the highest
cracking pressure when the cap is screwed all the way in and the lowest cracking pressure when the cap is
almost all the way out. If your line pressure is within the range of the cracking pressure of the PRV, take the fol-
lowing steps to set the correct cracking pressure:
a) Slowly turn the cap counter-clockwise until liquid starts to come out of the PRV outlet.
b) Turn the cap two turns clockwise to stop the leak and set the PRV cracking pressure 200psi above the
current pressure.
c) Tighten lock nut against the cap.
d) Lock wire cap and body together to maintain set pressure.
17.
I N S TA L L AT I O N C O N T I N U E D
Locking Collar
Hex Nuts
PRV
FIG. 3-9
Hex Socket Cap Screw
