3M DELTA Series - Solenoid Dampening Adjustment

Figure 3-3
NOTE: On Delta III units, use the access opening
in the right-hand side panel.
3. The 2nd step — (Dimension B) section (see Fig 
ure 3-1) should not slip through. If it does, loosen
the clevis screw lock nut and rotate the plunger
counterclockwise until the 2nd step — (Dimen 
sion B) will not slip through. If the 1st step —
(Dimension A) end of the gauge will not slip
through, the plunger is to be rotated clockwise
until it will slip through easily.
4. Once this setting has been obtained, tighten the
10-32 clevis lock nut.
E. SOLENOID DAMPENING ADJUSTMENT
Figure 3-4 illustrates the location of the screw
used to adjust the air dampening of the solenoid
plunger. The speed of the solenoid operation is pro 
portional to the speed at which air is allowed to
move through the small hole in the solenoid seat.
The noise of the solenoid operation shares the same
relationship.
Adjustment requires turning the screw clockwise
for more dampening and the opposite for less. It is
important to note that too much dampening will
affect the start and stop time of the cartridge, there 
fore, the minimum dampening necessary is the most
desirable.
F. CARTRIDGE GUIDANCE SYSTEM ALIGNMENT
Optimum performance from Delta Series ma 
chines and tape cartridges can only occur if the car 
tridge is positioned accurately and consistently in
precisely the same location each time it is inserted
into the machine. Cartridge guide alignment can
be achieved by using a specially marked cartridge
as illustrated in Figure 3-5. Use a point or scriber and
mark a cartridge as shown.
Refer now to Figure 3-6 in which the cartridge is
shown in its properly aligned position. If the align 
ment cartridge does not position as illustrated, loosen
(do not remove) the mounting screws on the right
hand cartridge guide. Position the cartridge and
Figure 3-4
Figure 3-5
Figure 3-6
3-3