Front Door Disassembly - Stoelting U421 series Operator's Manual

Section 2: Operation

1. Front Door Disassembly

B.1
Remove the spigot
extensions or rosette
caps if installed.
Unscrew the knobs
on the front door and
remove the door.
B.2
Remove the front
door o-rings and
remove the spigots
from the front door.
B.3
Remove the air bleed
valve from the front
door.
B.4
Remove all o-rings from
parts by fi rst wiping off the
lubrication using a clean
towel. Then squeeze the
o-ring upward to form a
loop. Roll the o-ring out of
the groove.
10 U421-I2A & U431-I2A OPERATOR'S MANUAL
2. Removing Auger
B.5
Remove front auger
supports and bushings
and remove the augers
from the freezing cylinders.
As the augers are being
pulled out, remove the
plastic fl ights with springs.
B.6
Wipe any remaining
lubricant off the hex end
of the auger and remove
the rear seal assembly
and o-ring. Wipe any
remaining lubricant off
the o-ring and auger.
Remove the rear seal
adapter from the rear seal.
B.7
Unscrew springs
from the auger
fl ights.
NOTE
The pump hose must be replaced every
800 gallons or every two weeks, whichever
occurs fi rst. Go to Section 3 A for pump
hose replacement instructions.
513713 REV.0