Chapter 3. Preventive Maintenance; Section 1. Basic Unit; Cleaning; Adjustment - IBM 29 Card Punch Field Engineering Maintenance Manual

Section 1. Basic Unit
The customer engineer's approach to preventive mainten-
ance is important to machine performance and customer
satisfaction. Effective scheduled maintenance is essential
for good machine performance. Time spent systematically
on scheduled maintenance results in complete inspection of
major machine units. Figure 3-1 is a suggested guide for
maintaining a standard machine if normal usage is 40 hours
per week.
3.1 CLEANING
A clean machine is important to good performance. While
cleaning a machine, observe the bearings, cams, linkages,
and other moving parts for rust accumulation. Rust
accumulation indicates wear. Reduction of corrective main-
tenance is the goal of scheduled maintenance.
3.2 ADJUSTMENT
A properly adjusted machine is more reliable than one that
has had compensating adjustments made for wear or
malfunction in some other area. As part of a PM routine,
check the following adjustments regardless of operating
conditions. A quick check of the same areas is also
recommended at the time of each maintenance call. The
adjustments for these areas are in Chapter4.
Friction clutch
Escapement
Feed throat
Punch clutch
CBs
Program unit
3.3 SAFETY
Preventive maintenance also implies the prevention of
accidents to operating and maintenance personnel and
concern for their health and well-being.
Chapter 3. Preventive Maintenance
DANGER
Do not permit machines to be run unattended with covers
open or removed.
3.3.1 Safety Devices
Check that all applicable safety devices are on the machine.
If they are operating devices, check them every time you
perform a routine PM. Refer to CEMs for current safety
information.
3.3.2 Electrical Hazards
f DANGER
B Anyone working near electrical circuits may accidentally
— come in contact with live voltage. Be alert and careful.
| Note: Immediate mouth-to-mouth resuscitation is
= imperative for unconscious victims of electrical shock.
m Always disconnectvoltage.
3.3.3 Chemical Hazards
g DANGER
| Use only IBM-approved products. Read the labels. As a
s general rule, cleaning fluids should be used only in an
: open area. Breathing the concentrated vapors, even for a
# short time, may cause immediate reactions.
3.4 LUBRICATION
Lubrication points are shown in Figures 3-2 through 3-7.
Frequency of keyboard lubrication depends on machine
usage and local conditions.
Applicable IBM lubricant part numbersare:
Lubricant Quantity Part Number
IBM #6 4 ounces 460052
IBM #6 1 pint 223980
IBM #23 1/2 ounce 1280441
IBM #23 1 pound 1280442
Silicone grease 341016
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