Owner’s Manual #513685
19
U421 I2 Model Machines
4.4 FINE
CONSISTENCY
ADJUSTMENT
Product consistency can be adjusted on the Fine Consis-
tency Adjustment screen. To get to the Fine Consistency
Adjustment Screen, press the right arrow then the SEL
button from the Current Status screen. Then move the
cursor to the Fine Consistency Adjustment option and
press the SEL button.
Increasing the Fine Consistency number increases the
product consistency (
fi
rmer product). The Consistency
Limits show the Fine Consistency adjustment added to
the Consistency number.
4.5
DRIVE BELT TENSION ADJUSTMENT
To check belt tension, follow the steps below:
A.
Remove a side panel and the back panel.
B.
Use a Burroughs Belt Tension Gauge to set the
tension for the drive belt. Set the belt tension to
55-60 lbs.
C.
If an adjustment is necessary, loosen the four
motor plate retaining nuts, adjust belt tension
then retighten the four nuts.
D.
Using a straightedge, check that the drive motor
pulley is aligned with the speed reducer pulley.
Align the pulley if necessary.
NOTE
Belt life will be increased if new drive belts are
tightened after two or three weeks of operation.
4.6
CONDENSER CLEANING (AIR-COOLED
MACHINES)
The condenser requires periodic cleaning. To clean the
condenser, refer to the following steps:
A.
Remove the side panel and take out the condenser
fi
lter. Visually inspect the condenser
fi
lter for dirt.
B.
If the condenser
fi
lter is dirty, vacuum or brush
it clean. Rinse it with clean water and allow it to
dry before replacing it on the machine.
C.
Visually inspect the condenser for dirt by shining
a light through the coil of the condenser.
D.
If the condenser is dirty, place a wet towel over
the condenser.
E.
Using compressed air or a CO
2
tank, blow out
the dirt from the inside of the condenser. Most of
the dirt will cling to the wet towel.
NOTE
If the condenser is not kept clean, refrigeration ef-
fi ciency will be lost.
4.7 PREVENTATIVE
MAINTENANCE
It is recommended that a preventative maintenance
schedule be followed to keep the machine clean and
operating properly. The following steps are suggested as
a preventative maintenance guide.
The United States Department of Agriculture and the Food
and Drug Administration require that lubricants used in
food zones be certi
fi
ed for this use. Use lubricants only in
accordance with the manufacturer’s instructions.
A.
Daily checks
Check for any unusual noise or condition and
repair immediately.
B.
Monthly checks
1. Check drive belts for wear and tighten belts if
necessary. (Refer to section 4.12)
2. Check the condenser
fi
lter for dirt. (Refer to
section 4.13).
4.8 EXTENDED
STORAGE
Refer to the following steps for winterizing the machine
or for storing the machine over any long period.
A.
Clean all of the parts that come in contact with
mix thoroughly with warm detergent . Rinse in
clear water and dry all parts. Do not sanitize.
NOTE
Do not let cleaning solution stand in machine barrel
or mix pump during the shutdown period.
B.
Remove, disassemble, and clean the front door,
auger shaft, and mix pump. Leave disassembled
during the shutdown period.
Figure 4-2 Fine Consistency Adjustment
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