IBM Selectric Reference Manual

GENERAL PROCEDURE
Power
clean the printer with the covers removed. Clean the feed rolls,
platen, and deflector. Unless otherwise stated, all parts of the printer
should be inspected and lubricated once every four months.
Note: Lubrication must be applied judiciously to eliminate excessive
quantities and prevent migration or spin-off into electri cal contacts.
LUBRICATION
Figures 1 through 8 show the points that require lubrication. The number
references require I BM # 1 0 • The letter references requ i re IBM #23. Poi nts
that do not require -Iubri cation every four months are identified with the
required frequency in the reference list. A rule of thumb should be IIAII
bearing areas having a sliding motion use IBM #23 and all bearing areas
having rotational motion use IBM #.10 unless otherwise specified .11
Machines with power on 24 hours daily require more frequent lubrication
than machines used for single-shift operation. The following areas are
primarily affected by idling time, since only the operational shaft is driven:
1. Motor and motor pulley
2. Cycle-clutch spring and arbor
3. Driven-pulley hub and bearing
4. Operational cam bearings
5. Right-hand operational shaft and shift cam bearing
6. Shift-clutch spring and arbor
Since these machines are hot 24 hours dai I y, some I ubri cant evaporati on
can be expected in areas not driven duri ng id I i ngi however, they are not
nearly so affected as items 1 through 6. Where power is on 24 hours daily,
we recommend I ubri cati ng these items every si x weeks.
1 -1

IBM Selectric Specifications

General

Type	Electric typewriter
Introduced	1961
Keyboard Layout	QWERTY
Carriage Return	Electric
Manufacturer	IBM
Printing Technology	Typeball (golf ball)
Power Source	AC Power
Power Supply	120V AC