1.3.4 Replacing an AIF (Automatic Intermittent Filtration) board
Disconnect the fryer from the electrical power supply. Locate the AIF board to be replaced
under a frypot. Mark and unplug the harnesses. The AIF board assembly is held in place with
one screw in the front of the assembly (see Figure 12). Remove the screw and the front of the
assembly drops down (see Figure 13) and the back tab slides out of the bracket attached to the
frypot (see Figure 14). Reverse steps to reassemble, ensuring that the new AIF assembly slides
into the slot in the rear of the bracket.
Figure 12 Figure 13 Figure 14
1.3.5 Replacing an Actuator
Disconnect the fryer from the electrical power supply. Locate the actuator to be replaced under a
frypot and mark and unplug the actuator. The actuators are held in place by two clevis pins that
are held in by cotter ring pins (see Figure 15). Remove both clevis pins and remove the actuator.
Attach the new actuator with the rear clevis pin and cotter ring pin first (see Figure 16). With the
actuator attached with the rear clevis pin only, adjust the new actuator by rotating the shaft until
the holes of the actuator and valve plate are aligned. Rotating the shaft clockwise, adjusts it
outward. While rotating it counterclockwise adjusts the shaft inward. Insert the clevis pin and
the cotter ring pin to secure. If a return valve was replaced, filter a different vat of oil. If bubbles
appear in the vat where the actuator was replaced, further adjustment is necessary. Take out the
pins and adjust the valve until no bubbles are present in the vat. Reinsert the pins to secure the
actuator.
Figure 15 Figure 16
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