Routine Maintenance - Ugolini MT MINI UL Carnet D'instructions

1 Prepare two gallons of a warm (45-60°C, 120-140 °F)
sanitizing solution (100 PPM available chlorine concentration or
1 spoon of sodium hypoclorite diluted with 2 liters of water)
according to your local Health Codes and manufacturer's
specifications.
2 Pour the solution into the bowl(s).
3 Using a brush suitable for the purpose, wipe the solution on
all surfaces protruding above the solution-level and on the
underside of the top cover(s).
4 Install the top cover(s) and operate the unit. Allow the
solution to agitate for about two minutes. Drain the solution out
of the bowl(s).
5 Use fresh product to chase any remaining sanitizer from the
bottom of the bowl(s). Drain this solution. Do not rinse out the
machine.

6 ROUTINE MAINTENANCE

1 Daily: inspect the machine for signs of product leaks past
seals and gaskets. If proper assembly does not stop leaks
around seals or gaskets, check for improper lubrication, worn
or damaged parts. Replace parts as needed.
2 Monthly on MT 2 MINI and MT 3 MINI models: remove
the dust from the condenser filter.
ATTENTION
Before any disassembly and/or cleaning procedure make
sure that the dispenser is disconnected from its power
source by unplugging it or switching off the 2-pole wall
breaker.
ATTENTION
Condenser fins are very sharp. Use extreme caution
when cleaning.
6. 1 MAINTENANCE (TO BE CARRIED OUT BY
QUALIFIED SERVICE PERSONNEL ONLY)
1 Monthly on MT 1 MINI model: remove the dust from the
condenser. To do this unplug the unit or switch off the 2-pole
wall breaker and then remove the panels.
2 Annually: remove the panels and clean the inside of the
machine including the base, side panels, condenser, etc.
3 Never remove the insulating jacket from around the suction
tubing of the evaporator (the copper tubing located on the right
side of gear motor). In case the insulating jacket is missing
replace the entire parts with original spare parts from the
supplier.
4 In order to prevent any damages to the dispenser, all
plastics parts must be lubricated only with grease supplied by
the manufacturer or with another lubricating product suitable for
polycarbonate.
IMPORTANT
The electric diagram of the dispenser is located in the
inner part of the dispensing side panel.
7 DEFROST TIMER
The Defrost Timer, located on the right side of the unit,
automatically switches the dispenser from Granita mode to Soft
Drink mode and the opposite. This means that during defrost
periods frozen Granita will melt to thermostat setting
temperature and once defrost period has expired, the product
automatically freezes down again to Granita setting viscosity.
To operate the defrost timer proceed as follows (see figure 16).
1 Set the time of the day by rotating the dial clockwise (arrow
A). Never rotate the timer counterclockwise as this would
damage the internal mechanism. Align the current time of day
with the arrow B on the timer face. This is a 24 hour timer
showing both A.M. and P.M.
2 Program the defrost timer by pushing out on the tabs C that
correspond to the hours desired to defrost. Each tab represents
15 minutes. A minimum of four to eight hours are required to
defrost frozen beverage (depending on ambient conditions).
Note: when all the tabs are pushed in the defrost function is OFF
(the machine operates as if it were not equipped with Defrost
Timer).
9
figure 16