The steam damper plate should open and close slowly and smoothly. The speed can be modulated by adjusting the needle valve knob. Turning the knob clockwise (CW) restricts the compressed airflow and slows the steam damper movement. Counterclockwise (CCW) adjustment speeds up the steam damper motion. Upon completion of the adjustment, tighten the needle valve’s locking nut.
3.Steam Damper Actuator System Service and Replacement
a.Steam Damper Cylinder or Piston Replacement
1)Disconnect compressed air supply from the dryer.
2)Disconnect tubing from the piston.
3)Remove the spring clip from clevis pin then slide out the clevis pin.
4)Remove the steam damper cylinder (piston).
5)To install new steam damper cylinder (piston), reverse above procedure (Step #4 thru Step #1).
b.Steam Solenoid Valve Replacement
1)Disconnect compressed air supply from the dryer.
2)Discontinue electrical power to the dryer.
3)Disconnect wires in junction box.
4)Remove tubing from the inlet side of the valve.
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