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Model 428 Operating Procedures
Section 6 Operating Procedures
The Model 428 freezer is designed to produce shake
or slush product at the desired thickness. This unit
has a 7 quart freezing cylinder.
We begin our instructions at the point where we
enter the store in the morning and find the parts
disassembled and laid out to air dry from the
previous night’s brush cleaning.
These opening procedures will show you how to
assemble these parts into the freezer, sanitize them,
and prime the freezer with fresh mix in preparation
to serve your first portion.
If you are disassembling the machine for the first
time or need information to get to this point in our
instructions, turn to page 26, “Disassembly”, and
start there.
Assembly
Note: When lubricating parts, use an approved food
grade lubricant (example: Taylor Lube).
Step 1
Slide the o--ring into the groove on the drive shaft.
Lubricate the o-ring and shaft portion that comes in
contact with the bearing. DO NOT lubricate the square
end of the drive shaft.
Figure 7
Note: To ensure that the mix does not leak out of the
back of the freezing cylinder, the middle section of the
boot seal should be convex or extend out from the seal.
If the middle section of the boot seal is concave or
extending into the middle of the seal, invert the seal.
Figure 8
Step 2
Lubricate the boot seal groove and slide the boot seal
over the shaft and groove until it snaps into place. Fill
the inside portion of the seal with 1/4” more lubricant.
Install the drive shaft.
Figure 9
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