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Installation Maintenance
'HT' Maintenance 'MT' Replace 'MT' Bushing
UGOLINI 'HT' /SANISERV/
TAYLOR GRANITA MACHINES
Installation:
Proper installation of the machine is very important. Some
important factors include the following:
a- allow 3" space around the
machine. Do
not back the machine to the wall.
b- do not place a heat generating equipment (like
coffee brewer espresso
machine etc.) near the left side of the machine.
The condenser fan draws warm air in and slow the cooling of
machine.
c- make
sure the machine is connected to a dedicated outlet with minimum 15
amps for a 2-bowl and 20 amps for a 3-bowl unit. If the voltage at
the machine drops to 108V or less, it will not freeze properly and
even shut the compressor off.
Maintenance of 'HT' model
Weekly maintenance
:
1- clean the condenser coil
(radiator)
to allow good ventilation.
2- clean
the bowl, sanitize and lubricate moving parts as per health
local health department
regulations.
Maintenance every
three month:
1- replace
gear shaft
o-rings
(Dwg. part # 38 ) and
lubricate.
2- replace
rear seal (Dwg. part # 10) and lubricate.
3- replace
front bearing (Dwg. part #
37).
Replacement of worn plastic
parts
During weekly cleaning, check the following parts
for wear
a- check the five auger parts (item #12) (auger parts chip at the
point where they lock into each other. Chipped piece overrides the
piece in front & pushes the bowl forward. This will
cause visible back & forth
movement on the serving handle. Replace the chipped auger
part:
1-
replace thrust washer (Dwg. part #
8) every 6-8 months. Worn thrust washer will have a pimple like wear
growth in the
center.
2- replace outer spiral (Dwg. part # 13)every 6-8
months. When worn, the tip of the outer spiral will appear slanted
on
side.
3- Bowl gasket should be firmly tight and snug on the ledge.
Replace it when soft or loose in the seat. It takes color from
the food color and appears ugly. Replace it every 6 to 8
months.
General care and checks:
a-
avoid serving
over-frozen product. Product with good consistency flows
evenly and in a continuous drip when the handle is pulled. When
the flow is chunky, lower the viscosity immediately. Over
frozen product does not taste as desired. Over-frozen
product increase load on the plastic parts as well
as the gearmotor and reduces their life.
b-
learn how to adjust viscosity.
c- do not leave the machine
in "freeze mode"
overnight.
d-
for better visibility, keep the bowls full
with
product.
e-
Keep a constant check on the mixing ratio of the
product. Check the brix level frequently to avoid over-freezing. Frequently count the turning of the outer
spiral. It is designed to turn 38 times in one
minute. Slower speed will mean the gearmotor needs check for
lubrication and cleaning.
f- Check
the Microswitch frequently if it opens and closes easily. When stuck
in off position, the product does not freeze and when stuck in on
position, the product freezes into solid block of ice due to
non-stop freezing. The pin plunger should move in and out when the
gearmotor is manually pushed to the left and
released.
*************************************************
Magnetic drive (MT
models)
Preventive
maintenance
The following
guidelines for Ugolini slush machines will help prevent unwarranted
breakdowns.
1- Clean condenser-filter and condenser-coil
every week. Condenser coil is like the nose of the air-cooled
machine and must be kept clean. No excuses.
The machine is air-cooled. It is important
that the air circulating though the machine is
maximum to keep the Compressor, gearmotor
and fan motor cool. Clean the condenser coil (radiator). Clean
fan blade (impeller) from dust collecting on
the blade. Clean external condenser filter, where provided. Use the
proper filters provided by the manufacturer.
Cheap foam sheets can reduce air flow and do more harm.
2- Lubricate auger bushing and thrust washer
weekly. Replace rear wall front bushing (Dwg. part # 10 and auger bushing (Dwg. part # 11) every three to
four months if the machine is on 24
hours.
3- Lubricate
the faucet assembly (o-rings, plunger)
4- Use product with minimum
brix at 13. Product with brix lower than 12 will freeze
fast and auger will not be able to scrape the frozen product fast
enough. This can cause damage to the auger and excessive load on the
gearmotor.
How to replace Auger bushings
Inner Auger is supported by two bushings - male bushing (part # 10)
& female bushing (part # 11). The two bushings prevent
direct contact of auger with the rear wall. If the auger is not held
straight out, the rear cup will scrape the magnet housing and result
in the perforation of the rear wall. Prevent this disaster by
replacing these bushings every 4 months if the machine is on 24
hours and every 6 months if the machine is used during the
day only or replace every 12 to 18 months if the machine is used on
the week-ends only.
When a used machine is purchased, this part
should be the first to examine
and replace. The chances are that the previous owner has
never replaced these bushings.
Removing the Rear
wall bushing - part # 10
Part # 10 is
simply pressed on a plastic stub (without threads). To remove it,
grab the busing with a nose pliers (from the side) and pull
straight, away from the rear wall. Or carefully insert the sharp
edge of a knife between the rear wall and the lip of the bushing
(without damaging the rear wall) and slowly, carefully push the
bushing away from the wall. It may be necessary to press the sharp
edge of the blade from the top and from the two sides of the
bushing, before it comes out far enough to be pulled
out.
Removing the Auger bushing - part # 11:
The auger bushing
is pressed into recessed space in the back of the
auger. It sticks tight and
may be difficult to pull out due to dried
syrup.
Use a flat screwdriver to
pry it out or grab the lip with a cutting pliers
and
pull out. Lubricate the hollow space with food grade lubricant
before pressing the new bushing in.
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