Table of Contents
Advertisement
method ensures that the carriage is always returned
to its original position without losing factory adjust-
ments.
Allen Adjusting Screw
Tip-up
Bracket
Locking
r----...:::i..-screws
Tip-up
Bracket
Suppa rt
(Fasten to
. Machine Base)
Carriage
Removal
Screws
Figure 4-14. Caniage Platen Alignment
Caution: Do not loosen
these screws
unless absolutely
necessary.
If
it is absolutely necessary to adjust the car-
riage, use the following procedure as a guide in
returning the carriage to the factory setting:
1.
Set the form thickness deviCe in the zero posi-
tion.
2.
Adjust the eccentric screw in the right and/ or
left tip-up bracket so that the platen will be
0. 047" to O. 052" from the type face when the
typewheels are held toward the platen by the
high dwell of the print cam (Figure 4-15).
It
will be necessary to loosen the two large lock-
ing screws adjacent to the eccentric screws be-
fore making this adjustment (Figure 4-14).
3.
Position the right and left tip-up brackets so
that 120 characters will print with an even im-
pression from top to bottom over the entire
length of the printing line. The locking screws
in the same hole will have to be removed to gain
access to the Allen adjusting screws. When
printing from five typewheels at each end, the
impression should be heavier at the top of the
figure. The reverse will be true when printing
from 120 typewheels.
Type Wheel
Platen
Figure 4-15. Print Wheel
to
Platen Clearance
Caution
Take care not to introduce any front-to-back
tilt when making these adjustments.
4. 7. 3 Pressure Roll Adjustment
Pressure rolls :rriust exert equal pressure in all
positions and turn freely without interference from
the paper guide.
4. 7. 4 Pressure Release Adjustment
When the pressure release lever is operated, there
should be 0. 060" to 0. 070" clearance between the
pressure rolls and platen. Loosen the two locking
screws and relocate the paper release cam follower
to obtain this adjustment (Figure 4-16).
4. 7. 5 Paper Guide Adjustment
1.
The front paper guide is positioned at the factory
so that it is parallel to the platen within 0. 010"
throughout its length.
·
2.
The movable paper guides, right and left, are
formed at the factory for a O. 015" maximum
clearance to the stationary paper guide (Figure
4-17). The movable paper guides must be free
to slide.
4. 7. 6 Form Stop Adjustment
1.
Center the paper lever over the slot in the form
guide (Figure 4-18).
1132 FEMM (12/66)
4-13
Advertisement
Table of Contents
