Howe Rapid Freeze, Руководство по обслуживанию

Страница: 62 / 78

15 Service & Adjustment
56
Re-install water distribution tubes.
Remove all tools from inside the machine and re-attach the service access cover.
Remove lock-out devise from the main power disconnect and turn on the main power.
Turn on the ice flaker switch, (you may need to press the overload reset button) and check the
squeegee to ensure that it touches the evaporator on the entire circumference of the freezing chamber.
If the squeegee loses contact with the evaporator surface at any point, then shut down the machine
repeating the above steps to readjust the squeegee a little closer.
REPLACEMENT & ADJUSTMENT OF ICE CUTTER BLADE
Ice blade setting clearance between extreme outboard tip of ice blade and evaporator freezing surface
must be between .004" to .006" with evaporator at room temperature.
1)
locate exact position on evaporator freezing surface where the clearance between the tip of
ice blade and freezing surface is the least. This is accomplished with the use of a feeler gauge. Check
clearance at the top and bottom of the blade, rotate the blade 60 degrees and recheck clearance.
Repeat this operation at a minimum of six points on the circumference of the evaporator in order to
determine the point of least clearance accurately.
2)
With the ice blade rotated to the point of least clearance, set gap between the ice blade and
evaporator surface to between .004" and .006" at the top and bottom of the blade. Tighten the blade
mounting bolts and re-check clearance.
REPLACEMENT & ADJUSTMENT of the WATER DISTRIBUTION TUBES
Adjust lead tube (bottom spout with 90° elbow), so that the water is dispersed over the evaporator and
it doesn't splash water over the ice deflector.
The side spouts are positioned so the ends of the tubes are approximately
3
" away from the surface,
along the top edge of the evaporator.
When a tube or fitting is broken in the distribution pan, the remaining fitting can be removed from the
pan by using an Easy-Out removal tool. Once the broken piece is removed, the replacement tube and
fitting may be installed and adjusted.
REPLACEMENT OF DRIVE MOTOR
Disconnect main power to the ice flaker. Remove electric wiring cover on the drive motor. Remove
the power leads attached to terminals marked L
1
and L
2
.
Refer to exhibit 30 The drive motor is attached to the gearbox with (4)
d
bolts, through the motor
mounting plate. Remove the (4) bolts. The motor may be removed by pulling it away from the
gearbox. There are no set screws or couplings, the motor shaft fits directly into the hollow high speed
input shaft on the speed reducer with a
3
" key. If the old motor cannot be removed easily, then locate