Maintenance And Cleaning Instructions; General; Icemaker; Cleaning Instructions Of Water System - Scotsman TC 180 Service Manual

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MAINTENANCE AND CLEANING INSTRUCTION
A. GENERAL
The periods and the procedures for maintenance
and cleaning are given as guides and are not to
be construed as absolute or invariable.
Cleaning, especially, will vary depending upon
local water and ambient conditions and the ice
volume produced; and, each icemaker must be
maintened individually, in accordance with its
particular location requirements.
B. ICEMAKER
The following maintenance should be scheduled
at least two times per year on these icemakers.
1. Check and clean the water line strainer.
2. Remove the cover from the float reservoir -
care to do not damage the two water sensors -
and depress the float to make sure that a full
stream of water enters into the reservoir.
3. Check that the icemaker is levelled in side to
side and in front to rear directions.
4. Check that the water level in the water
reservoir is below the overflow but high enough
that it does not run out of the spout opening.
NOTE. The float must close positively the
incoming water flow when the rubber housed
in the setting screw, is perpendicular to the
water nozzle.
5. Clean the water system, water reservoir
and the interior of freezing cylinder using a
solution of SCOTSMAN Ice Machine Cleaner.
Refer to procedure C cleaning instructions and
after cleaning will indicate frequency and proce-
dure to be followed in local areas.
NOTE. Cleaning requirements vary
according to the local water conditions and
individual user operation.
6. If required, polish the two sensor rods
secured to the float reservoir cover, heavy scale
sediment on them can be removed with the help
of a bit of SCOTSMAN Cleaner plain.
7. With the ice machine and fan motor OFF
clean condenser using vacuum cleaner, whisk
broom or non metallic brush taking care to do not
damage the condenser temperature sensor.
8. Check for water leaks and tighten drain line
connections. Pour water into the sink to be sure
that drain line is open and clear.
9. Check the ice level control sensor to test
shut-off. Put your hand between the light source
and the receiver on the upper side of the storage
bin so to cut off the light beam for at least 6
seconds.
This should cause the immediate extinguishing
of the 1st RED LED located in the front face of
P.C. Board and, 6 seconds later, the total stopping
of the ice maker with the simultaneous light up of
the 6th Yellow LED.
Within few seconds from the removal of the hand
from between the sensor lights the ice maker
resume its operation.
NOTE. The ice level control uses devices
that sense light, therefore they must be kept
clean enough so they can "see".
Every month clean/wipe the sensing "eyes"
with a clean soft cloth.
10. Check for refrigerant leaks and for proper
frost line, which should frost as far as approx. 20
cm (8") from the compressor.
When doubtful about refrigerant charge, install
refrigerant gauges on corresponding Schräder
valves and check for correct refrigerant pressures.
(See Operating pressure at page 19 of this
manual).
11. Check that fan blades move freely and are
not touching any surfaces.
12. Remove the ice spout cover, unloose the
bolt securing the casting ice sweep and remove
it; then inspect the top bearing, wipe clean of all
grease and apply a coating of food grade water
proof grease P/N 263612.00.
NOTE. It is recommended to use only food
grade and waterproof grease to lubricate the
freezer top bearing.
13. Turn the ice dispensing spout and remove it.
Wash and sanitise it.
14. Remove the sink grill for washing and
sanitising.
C. CLEANING INSTRUCTIONS OF WATER
SYSTEM
1. Switch OFF the Master disconnect switch
on the power line.
2. Remove the top panel and later the top
cover of storage bin with the dispensing drive
motor.
3. Remove all ice stored in the bin to prevent it
from getting contaminated with the cleaning
solution.
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