Ibm 1403 Printer Models 1, 2, 3, 4, 5, And 6; Introduction; Safety; Preventive Maintenance - IBM 1403 Field Engineering Maintenance Manual

This maintenance manual is a companion-piece to Cus-
tomer Engineering Jvfanual of Instruction: IBM 140a
Printers, Form 225-6492. It includes information neces-
sary for the correct servicing of the 1403 printers. The
manual is arranged in three sections.
The first section (Alodels 1, 2, 3, 4, 5 and 6) contains
information common to all 1403 models except for
those differences peculiar to the Model 3. Special
tim-
ings or adjustments required for the single-speed
Model 6 are noted, as required.
The second section contains additional Information
Peculiar to the Afodel 3. The great differences in the
printing mechanisms of the Model 3 warrant placing
this information in a separate section more readily
available to the reader.
The third section contains general information on
Print Quality Concepts, and applies equally to all
models.
Safety
Personal safety cannot be overemphasized. To insure
your own safety, make it an everyday practice to fol-
low all safety precautions at all times. Become familiar
with and use the safety practices outlined in Form
229-1264, a pocket -sized card issued to all customer
engineers.
The 1403 mainline CE switch turns off all ac power
except 115V ac at the convenience outlet. It does not
affect the dc voltages. Use this switch only when sys-
tem power is off.
Caution: Remember if ac power is on, opening the T-casting
removes two phases from the chain/train drive motor. The
other phase remains present on this motor. All three phases re-
main on the hammer unit blower and the hydraulic drive motor,
which continue to run regardless of the gate interlock switch.
Preventive Maintenance
The prime objective of maintenance is to provide maxi-
mum machine availability to the customer. Unless a
preventive maintenance operation reduces machine
downtime, it is unnecessary.
Do not adjust or disassemble a unit that is working
properly, even if tolerances vary from specifications.
IBM 1403 Printer
Models 1, 2, 3, 4, 5, and 6
Be visually alert for trouble indications any time
you service the machine. Look for corrosion, wear,
cracks, burned contacts, and loose connections. Watch
for filters clogged with dirt.
The three basic steps of preventive maintenance are:
clean, lubricate, and inspect. Do not do more than the
preventive maintenance scheduled on equipment that
is operating satisfactorily. Figure 1 shows the recom-
mended preventive maintenance for single-shift opera-
tion. When used by more than one shift daily, increase
the maintenance frequency accordingly.
Apply lubrication only in the quantity necessary to
supply the immediate area involved. Wipe off excess.
On the 1403, take special care to keep lubricants away
from:
Ribbon Cover seals
Paper path Rubber dampers
Electrical wiring Grommets
Ribbon drag brakes
The process meter should be checked every six
months as prescribed under Installation Procedure.
Installation Procedure
Base Installation
l. Remove protective wrappings, tape, etc., and the
wooden block used to prevent the translator frame
from shifting during shipment.
2. Make a visual check for parts broken or damaged
in transit.
3. Check manual knobs, levers, and covers for correct
operation.
4. Check for oil as follows:
a. On Models 3 and N-1. See that the clear plastic
train lubricator beneath the lower right end of
the T -casting contains special lubricant (part
856381). Prime the pump (see Train Lubricator,
steps 2 and 5).
b. On all other models. See that the reservoir be-
hind the clear plastic window in the right end
of the T -casting contains
IBM
6 oil.
5