Scotsman MAR 106, Руководство по обслуживанию

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SECTION V
MAINTENANCE & CLEANING INSTRUCTIONS
1. GENERAL
The periods and procedure 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 conditions and the ice volume
produced and each ice maker must be maintained
individually in accordance with is own particolar
location requirements.
2. ICEMAKER
THE FOLLOWING MAINTENANCE MUST BE
SCHEDULED AT LEAST TWO TIMES PER
YEAR ON THIS ICE MAKER. CALL YOUR AU-
THORIZED SCOTSMAN SERVICE AGENCY.
1. Check and clean water line Strainer in water
inlet fittings.
2. Remove top panel and evaporator cover
depress the float to ensure that a full stream
of water enters Drum Reservoirs.
3. Check that the ice maker cabinet is level in
side-to-side and front-to-rear directions.
4. Clean the drum basin and exterior of the
drum assembly using a solution of
SCOTSMAN Ice Machine Cleaner. Refer to
procedure VI-3, CLEANING ICE MAKER.
NOTE. Cleaning requirements vary according
local water conditions and individual user
operation.
5. When doubtful about refrigeration charge,
check gauge for compressor head pressure.
Please refer to the operating pressures as
printed on page 26.
6. Check gauge for Suction Line Pressure which
varies between:
2.2 bar (32 psi) MAR 56-76 AS
1.8 bar (26 psi) MAR 56-76 WS
1.6 bar (22 psi) MAR 106-126 AS-WS
1.9 bar (27 psi) MAR 206 AS-WS
1.0 bar (14 psi) MAR 306 AS
0.75 bar (10 psi) MAR 306 WS
Depending upon water inlet temperature.
7. Check setting and function of all the pressure
controls also make sure that their
corresponding lights will glow.
8. Check drive motor operation.
Normal operating temperatures are about
60
°
C (160
°
C) which is hot to touch. Check
with amperometer Amps drawn.
9. Check V belt for concealed signs of wear and
that has the correct tension. Check pulleys
alignements and also that drive motor and
gear box hold down bolts are tight enough.
10. Make sure that water lines in water cooled
condenser are free from any excess of water
minerals: otherwise arrange to clean the tubes
with a power driven wire brush or running
through it a weak acid solution made with 20
percent of hydrocloric acid.
11. Check for refrigerant leaks and for proper
frost line, which should frost out of accumulator
at least half way to the compressor and in
some areas, back to service valve.
12. Check for water leaks. Tighten drain line
connections. Pour water down drain to be
sure that drain line is open and clear.
13. Check the quality of ice. Ice flakers should be
dry and have a thickness gauge of about
1.5
÷
2.0 m/m.
14. Check the thermostatic Ice Control Bulb
(whenever used) location and thermostatic
function.
15. Check compressor oil level through sight
glass (where used). Stop unit operation and
after 10" see that oil level is 2/3 millimeters
above center line of sight glass.
16. Be sure that plexiglass chute at spout opening
is securely fastened with is hold down button
and that its surface is smooth and clean from
any water mineral deposit.
3A. CLEANING INSTRUCTION
(MAR 56-76-106-126)
1. Disconnect power front the unit.
2. Remove screws and top panel
3. Remove evaporator cover panel
4. Close water inlet valve located at evaporator
side onto water inlet line.