Leakage; Basket Lift Malfunctions - Frymaster H50 Series Service And Parts Manual

manifold. The two new leads have a separate connector for attachment to the solenoid. When a
filter cable is ordered for either filtration system configuration (original or redesigned), the new
7-wire cable will be sent. The two extra wires and connector will not interfere with the original
filtration system or its operation.
Verifying Solenoid Operation
Proper operation of the 24VAC manifold and pump solenoids can be verified by removing the pump
motor lead from terminal 4 of the pump motor relay in the filter wiring box and then activating the
oil return lever. Proper solenoid operation will be evidenced by an audible "click" or vibration of
both the pump solenoid and the manifold solenoid.

1.7.6 Leakage

Leakage of the frypot is usually due to improperly sealed high limit thermostats, temperature probes,
and drain fittings. When installed or replaced, each of these components must be sealed with
®
Loctite PST56765 sealant or equivalent to prevent leakage and torqued to 180 inch-pounds. In
very rare cases, a leak may develop along one of the welded edges of the frypot. When this occurs,
the frypot must be replaced.
If the sides and/or ends of the frypot are coated with oil, the most likely cause is spillage over the top
of the frypot rather than leakage.
The clamps, which hold the drain tube sections together, may loosen over time as the tubes expand
and contract with heating and cooling during use. If the section of drain tube connected to the drain
valve is removed for whatever reason, make sure that its grommet is in good condition and properly
fitted around the nipple of the drain when it is reinstalled. Also, ensure that the drain tube runs
downward from the drain along its whole length and has no low points, where oil may accumulate.

1.7.7 Basket Lift Malfunctions

H50 Series fryers may optionally be equipped with automatic basket lifts to ensure uniform cooking
times. Basket lifts will always come in pairs, although each operates independently of the other.
Depending upon the specific model, date of manufacture, and customer specifications, an H50 fryer
may be equipped with a bell crank style basket lift, or a "modular" basket lift.
A modular basket lift (illustrated below) consists of a toothed rod to which the basket lift arm is
attached, a reversible-drive gear motor, and a pair of roller-activated microswitches. The gear motor
engages the teeth in the rod, moving it up or down depending upon the direction of rotation of the
motor. Microswitches at the upper and lower limits of movement stop the motor 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.
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