Econo 8 Popcorn Machine
Model No.: 2388, 2388-00-002
Page 12
gmpopcorn.com
Agitator Set Collar Adjustment
The following instructions describe how to properly adjust set collars on an agitator assembly
with a floating stir rod.
Agitator Assembly with a FLOATING Stir Rod
Drive
Motor
Spur
Gear
Agitator’s
Spur
Gear
(should set halfway up on
Drive Motor Spur Gear)
Set
Collar
w/Set
screw
Spur
Gear
Placement
Needle
Bearing
(should set at least
halfway into Gear Block)
Gear
Block
Step
1:
Turn machine OFF, unplug unit, and
allow it to cool completely before attempting
to adjust the agitator height.
Step
2:
Loosen the set screw in each set collar
to be adjusted.
Step
3:
With the kettle mounted in the popper,
adjust the shaft so the Spur Gears are halfway
engaged, and the Needle Bearing is at least
halfway engaged in the gear block (reference
image at right).
DO
NOT
set spur gears at full gear contact; it
can cause binding as the kettle is dumped.
Step
4:
Snug tighten only, the set screw in set
collar above the crossbar to hold position. Then,
lift the agitator weight and check the clearance
between the shaft and the kettle bottom. If
there is adequate clearance, fully tighten the set
screw to secure set collar in place.
Step
5:
Adjust clearance between the bottom of
the crossbar and the lower set collar to 1/32”
(thickness of a dime); then re‐tighten set screw
to secure in place (reference image).
Step
6:
Adjust set collar for agitator weight to
be between 3/16” to 1/4” above the agitator
weight. Once adjusted,
re‐tighten set screw
to secure in place.
Agitator
shown
for
general
image
reference
only
(lids
not
shown
for
clarity).
Adjust
clearance
to
thickness
of
a
dime.
3/16”
to
1/4”
max.
Steps
to
Adjust
Set
Collars
Set
Collar
above
Crossbar
Lower
Set
Collar
(below Crossbar)
Set
Collar
(for Agitator Weight)
Agitator
Weight
Stir
Rod
Crossbar
Agitator
Shaft
