3M DELTA Series - Pressure Roller Pressure, Solenoid Adjustment

2. Carefully tighten the motor mounting screws
while making certain that the motor locating
gauge remains parallel to the capstan shaft.
Also insure that the pressure roller shaft and
motor shaft are directly in line with each other
centering on the deck plate hole. This is the
proper position of the pressure roller shaft as
related to the capstan shaft
3. Remove the gauge from the machine and install
the pressure roller. The steel washer fits over the
shaft first, followed by the pressure roller, nylon
washer, and the retainer clip.
’ NOTE: Motor locating in Delta III models is
always referenced to the center bulkhead, and
motor location is relatively fixed. Therefore,
manipulation of the sliding deck adjustment
screws is required to insure proper motor shaft-
to-pressure roller shaft parallelism. The follow 
ing procedure applies to Delta m units only:
C. PROCEDURE FOR DELTA DI DECK ADJUSTMENT
This procedure should be used when a motor or
deck has been replaced.
1. Remove all decks from the mainframe.
2. Starting with the bottom deck, remove the pres 
sure roller and place the special locator gauge
(830-0043-001) over the pressure roller shaft as
illustrated in Figure 3-2.
3. Insert the bottom deck into the bottom slot.
4. Secure the deck by tightening the capture screw
which is accessible through the front trim piece
center hole. Remove the right-hand side panel
inlay for ease of set up.
5. Using the opening in the right side panel, man 
ually press in the solenoid plunger until the
gauge is placed against the capstan shaft. Ob 
serve if the gauge surface indicates the two
shafts to be parallel or nonparallel. If nonparal 
lel, observe whether the gap is at the top or bot 
tom of the gauge. A gap at the bottom of the
gauge indicates the deck is too far out and
needs to be moved into the mainframe, closer to
the motor shaft. Likewise, a gap at the top of the
gauge indicates the deck should be moved
away from the motor shaft.
6. Deck penetration into the mainframe is deter 
mined by a 10-32 set screw, for each deck,
located in the motor mounting plate. These
screws are immediately adjacent to the tapped
holed used by the deck capture screws. Decks
must be removed from the frame to adjust the
penetration set screws. Turning the set screw
clockwise allows the deck to move closer to the
motor shaft. Turning the set screw counter-clock 
wise moves the deck away from the motor shaft.
By observing the "gap" indicated by the gauge
in the previous step, an indication of deck pene 
tration will be given. Adjust the deck penetration
set screws so that the gauge indicates parallel 
ism of the capstan shaft and pressure roller shaft
of each deck. When proper deck penetration is
established for all three decks, pressure rollers
may be replaced, and the deck capture screws
secured.
Delta III motors utilize a unitized construction
technique whereby the windings, rotor, shaft, and
shaft top bearing are all contained in a single-piece
precision casting. This technique allows for precision
alignment of the shaft to the top bearing and motor
bearing. The entire assembly is bolted to the ma 
chine by screws mounting through the rear of the
center bulkhead. The center bulkhead forms a pre 
cision mounting plate for the motor from the rear, as
well as an extremely rigid center and side brace for
the mainframe. Replacement of motors in Delta III
units, when necessary, will include the “ top" bear 
ing, and its support block. Since the Delta III motor
has only two bearings, the shaft “ top" bearing, its
block, and the vertical support member gallows is
considered part of the motor. The precision casting
and subsequent machining of the gallows allows the
use of a high grade motor bearing at the top of the
capstan shaft.
SPECIAL SERVICE NOTE: Delta Series transports
utilize a SPDT deck switch. The unused terminal
(normally closed) may be shorted to chassis ground
in order to put the deck into a powered READY con 
dition. This facilitates pressure roller pressure adjust 
ments, etc., to be made without having a cartridge
loaded.
D. PRESSURE ROLLER PRESSURE/SOLENOID
ADJUSTMENT
This adjustment will normally be required only
after parts replacement; but for best results, a check
of the pressure roller/capstan pressure should be on
the routine maintenance schedule.
1. With pressure roller installed, apply power to the
machine. Holding the cart sensing switch closed,
press the start switch.
2. With the solenoid engaged and the plunger bot 
tomed, place gauge 1st step — (Dimension A)
end between the pressure roller shaft and cap 
stan shaft. (See Figure 3-3.)
3-2