26 Model 428Operating Procedures
080313
Disassembly
BE SURE THE POWERSWITCH IS IN
THE OFF POSITION. Failure to follow this
instruction may result in severe personal injury from
hazardous moving parts.
Step 1
Remove the torque arm, handscrews, freezer door,
torque rotor, beater assembly, scraper blades and
drive shaft from the freezing cylinder. Take these
parts to the sink for cleaning.
Step 2
Remove the front drip tray and the splash shield.
Taket hese parts to the sink for cleaning.
Step 3
Remove the rear drip pan from the front panel. Note:
If the drip pan is filled with an excessive amount of
mix, it is an indication the drive shaft seal should be
replaced or properly lubricated.
Brush Cleaning
Step 1
Prepare a sink of cleaning/sanitizing solution with an
active chlorine concentrate of 100 - 200 PPM (parts
per million). USE WARM WATER AND FOLLOW
THE MANUFACTURER’S SPECIFICATIONS.
Make sure all brushes provided with the freezer are
available for brush cleaning.
IMPORTANT: Follow the label directions. Too
STRONG of a solution can cause parts damage, while
too MILD of a solution will not provide adequate
cleaning.
Step 2
Remove the o-ring and seal from the drive shaft.
Remove the o-ring and the bearing from the torque
rotor.
Step 3
From the freezer door, remove the draw v alve, ice
buster, front bearing, and gasket. Remove the prime
plug (self- closing door, only). Remove all o-rings.
Note: Toremove the o-ring, use a single serv ice towel
to grasp the o-ring, and apply pressure in an upward
direction until the o-ring pops out of its groove. W ith the
other hand, push the top of the o-ring forward until it
rolls out of the groove and can be removed easily.
Step 4
Thoroughly brush clean all disassembled parts in the
cleaningsolut ion, making sure all lubricant and mix film
is removed. Place all the cleaned parts on a clean, dr y
surfacetoairdry.
Step 5
Return to the freezer with a small amount of cleaning
solution. Brush-clean the rear shell bearing at t he back
of the freezing cylinder with the black bristle brush.
Figure 46
Step 6
Wipe clean all exterior surfaces of the freezer.