Basket Lift Service Procedures - Frymaster PRO series Service & Parts Manual

1.8.3 Replacing the Filter Transformer or Filter Relay
Remove the left controller from the fryer to expose the interior of the left component box. The filter
transformer and relay are located as shown in the illustration below. NOTE: The right component
box is identical to the left except that the filter transformer and relay are not present.
Filter
Relay
Filter
Transformer
Dual-vat configuration illustrated. In full-vat units, left filter handle is not present.

1.9 Basket Lift Service Procedures

Pro Series electric fryers may be equipped with automatic basket lifts. Basket lifts always come in
pairs, although each operates independently.
A modular basket lift (illustrated below) is a self-contained sub-assembly consisting of a pair of
toothed rods which support removable basket lift arms, a pair of reversible-drive gear motors, and
four microswitches. The gear motors engage the teeth of the rods, moving them up or down
depending upon the motors' direction of rotation. The microswitches at the upper and lower limits
of movement stop the motors when the basket is in the full up or full down position.
Timing circuitry in the controller initiates and stops basket lift operation depending upon the
variables programmed by the operator. When the product button is pressed, the timing circuitry
activates a coil in the basket lift relay to supply power to the lower microswitch. The microswitches
stop the motor at the lift's upper and lower travel limits and reverse the direction of current flow thus
reversing the motor direction.
When the product button is pushed on the computer/controller, current flows through a coil in the
basket lift relay, causing the lower circuit to be activated. The basket lift lowers, closing the
normally open upper-micro-switch. When the downward-moving rod opens the lower normally
closed microswitch, power to the motor ceases to flow. When the computer/controller times out, the
current to the relay coil is cut, allowing the upper circuit to be activated. The basket lift then raises
and re-closes the lower microswitch. When the basket lift rod clears the upper microswitch, the
microswitch reopens, power to the circuit is cut, and the motor stops. Pushing the product button
restarts the cycle.
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