Liquid Controls Optical Air Eliminator US Patent 7000628 Refined Fuels Applications A8981 & A8981A - Manual (Page 13)

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Maintenance
Step 3
Place the plastic bonnet over the valve body and snap in
place.
Step 4
Place the coil over the armature guide post and fasten with
the thin hex nut. Tighten the nut with a 14mm wrench to a
torque of 4.5 in-lbs (0.5 Nm).
Reassembling
Step 1
Place the spring inside the plunger and insert the plunger,
spring end first, into the armature guide post. Place the ar-
mature guide post assembly on the valve body.
Fasten the armature guide post to the valve body using the
two screws removed earlier. Two holes of the valve body are
threaded and two are not. Make sure the screws are being
inserted into the threaded holes.
Note that the valve body has a number stamped into it. This
will be used to set the proper orientation of the solenoid
valve body with respect to the optical air eliminator housing
assembly.
Step 2
Align the solenoid valve body so that the stamped number on
the valve body faces the housing assembly as shown in the
picture to the left. The valve body can physically be fastened
to the housing assembly in one of two orientations. Only one
orientation is correct.
Number Stamp
Position solenoid valve body
with number stamp in this
location
IMPORTANT!
If the stamped numbers face away from the housing,
the optical air eliminator will not function properly. The
port will be blocked and the air eliminator will fail.
With the valve body in the proper orientation, fasten it to the
housing using the two screws removed earlier. Tighten to a
torque of 15 to 18 in-lbs (1.7 to 2.0 Nm).