Frymaster FOOTPRINT E4 - Manual (Page 18)

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100-120V C onfiguration 208-250V C onfiguration
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, the 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.
Problems with the basket lift can be grouped into three categories:
● Binding/jamming problems
● Motor and gear problems
● Electronic problems
BINDING/JAMMING PROBLEMS
Noisy, jerky or erratic movement of the lifts is usually due to lack of lubrication of the rods and their
bushings. Apply a light coat of Lubriplate
® or similar lightweight white grease to the rod and
bushings to correct the problem.
With the modular basket lift, another possible cause of binding is improper positioning of the motor,
which prevents the gear from correctly engaging the teeth in the rod. To correct the problem, loosen
the screws that hold the motor in place and move it forward or backward until the rod has just
enough slack to be rotated slightly.