Howe Rapid Freeze - Speed Reducer & Ice Blade Problems

14 TroubleShooting Chart
50
PROBLEM PROBABLE CAUSE REMEDY
2
) Improperly sized thermal
overloads.
Check ratings and install
properly sized overload
heaters.
Motor burnt out, speed
reducer output shaft
broken.
)
Dull carbon steel ice blade. Replace ice blade with
new stainless steel ice
blade, repair or replace
burnt out motor, repair or
replace defective speed
reducer.
Electronic overload setting too
high.
Adjust potentiometer
counter-clockwise c turn
at a time.
Motor burnt out or off
on overload, ice
deflector broken or
bent out of shape.
Ice storage bin was full of ice
and flaker continued to operate.
No ice level control, or defective
ice level control.
Install suitable ice level
control.
SPEED REDUCER
O
il leakin
g
between front of
motor and motor
mounting flange.
Worn high speed oil seal in speed
reducer.
Replace leaking high
speed oil seals.
O
il leakin
g
evident on top
of flexible coupling.
Worn slow speed oil seal in speed
reducer.
Replace leaking slow
speed oil seal.
S
peed reducer output shaft
and ice flaker main shaft
do not turn, but motor
runs.
Woodruff key in speed reducer
sheared because:
electronic overload set too hi
g
h).
(woodruff key locks slow speed
gear to output shaft.)
Repair speed reducer and
readjust overload setting.
I
ce flaker motor started while ice
blade was frozen in stationary
position to freezing drum.
Control circuit has no off delay
timer, (or timer circuit is
defective).
Install off delay timer in
circuit. (see wiring
diagram) or install New
Rapid Freeze control
panel.
Repair speed reducer.
C
ontrol circuit has off dela
y
timer,
but disconnect switch was used to
start and stop ice flaker instead of
on-off switches.
Disconnect switch should
stay on continuously
except for servicing.
Install new Rapid Freeze
control panel.