Section 2. Features . 3-8 - IBM 29 Card Punch Field Engineering Maintenance Manual

Must be kept dry
IBM #23 Hook Channel
Keystem [emer) mn
/ wy,
be em
Figure 3-7. Keyboard Lubrication
Lubrication Hint: To prevent sticking, apply all lubricants Section 2. Features
sparingly on keyboard parts.
Lubrication of features should be performed at the discre-
tion of the customer engineer, using the guidelines in Field
Engineering Theory—Maintenance, JBM 29 Card Punch
Features/29 Interpreting Card Punch, Model C, Form
223-2926.
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