Frymaster FOOTPRINT RE80 Series, Service & Parts Manual

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1-12
100-120V C onfiguration 208-250V C onfiguration
1.10 Basket Lift Service Procedures
High Production RE 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 on the following page) 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, 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