IBM Selectric User manual

OPD CUSTOMER ENGINEERING
Selectric
I/O Reference Manual
Section 1
Reprinted July. 1966
FIN 241-5308-0
A II rights to reproduce this material are reserved by IBM.

CONTENTS
LUBRICATION SECTION 1
Page
General Procedure ........................................... 1
Lubrication Procedure ......................................... 1
Improved Lubrication Machines ............................•.... 7
Printer Contact Locations ...................................... 9
Inspection Procedure ........................................ 11
First Inspection Period ....................................... 11
Second Inspection Period ..................................... 12
Third Inspection Period ....................................... 12

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 #10 • The letter references requ ire 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 Iubri cant evaporati on
can be expected in areas not driven duri ng id Iingi however, they are not
nearly so affected as items 1 through 6. Where power is on 24 hours daily,
we recommend Iubri cati ng these items every si x weeks.
1-1

2 B C A
4
15
7
II
13
14
20
F 20 19 16
13
17
12
Figure 1. Bottom View Of The Printer
IBM #10
/./1. Power-tab key-lever bai I pivots
2. Clevis and link pivots
3. Keyboard-lockout bellcrank pivot
4. Keyboard-lockout bail pivots
,5. Cycle-clutch pawl and link pivots
/'-6. Keyboard-lockout bai I roller and lever pivot
Y7. Selector bai I roller pivots
VB. Negative-five bai I roller pivot
;,/ 9. Actuating-arm pivots
i~lO. Operational pull Iinks
.... 11. Pusher bail-arm pivots
"'..-'12. Carrier-return actuating-arm pivot
v13. Rotate -Iink pi vots
Y14. Pusher-arm pivots
V15. Selector-latch bai I pivots
/
!/ 116.
/17.
118.
i 19.
i20.
Negative-five link bearing
Cycle-clutch trip pivots
Contact-latch pivots
Cycle-clutch trip-bail pivot points
Pusher bai I pivots
IBM #23
;/ A. Keyboard-lockout-comb sliding surface
j B. Interposer sliding surfaces
/C. Cycle-clutch latch surfaces
I D. Fi Iter-shaft surface
1 E. Operational-arm pivots
r F. Selector-latch surfaces
1-2
2
3
5
4
6
0
E
8
10
9
18

II
10
9 6
20
7 3 8 A 4
12
o
13
17
Figure 2. Right Side Of The Printer
)BM #10
"'1.
r2.
,:/3.
74.
,/5.
6.
V 7.
~B.
/9.
v'10.
1I1l.
V}2.
.(13.
/14.
i
15
.
16.
Platen-release pivot
Paper-release-lever pivots
Rotate and tilt pulley bearings
Tab-rack support bearing
Copy-control eccentric pivot
Pulley-assembly pivots '~'
Right-hand cord-pulley bearing
Escapement torque -bar pivot
Carrier-return unlatching-bellcrank pivot
Carrier-return unlatching-I ink pivot
Bellringer bail pivot
Fi Iter-shaft bearing
Operational-shaft bearing
Carrier-return latch-keeper pivot
Index-I ink pivot
Carrier-return-I ink pivots
17.
/lB.
Yf9.
/'LO.
Operational-contact I ink-rod pivots ~2..
Contact-bai I pivots ___
Shift arm pivot
Print shaft bearing
IBM #23
~) V;A.
lB.
C.
tI D.
1-3
Guide-bracket sliding surface
Copy-control eccentric surface
Carrier-return latch keeper
Shift clutch spring and arbor
2
B
16
15
14

llBM #10
1. Platen-release pivot
Y .. 2. Copy-control eccentric pivot
I; 3 . T ab-rac k support bushing
Ii, 4. Rotate and ti It pulley beari ngs
,} 5. Print-shaft bearing
y 6. Left-hand margin-rack bushi ng
f7. Tilt-arm pivot
vB. Idler-gear bearings (lightly)
1/ 9. F,ilter-shaft bearing
1110. End-of-line bail
.V 11. Tab set / clear 1ink pivots
'\ 12. Wear-compensator pivots
V 13. Cycle-shaft bearing
Figure 3.
Left Side Of The Printer
1-4
Jli 4. Ti It I ink pivot
/15. Rotate link
V16. Rotate arm paddle eccentric
IBM #23
V' A. Copy-control eccentric surface
VB. Guide-bracket sl iding surface
IfC. Tab set/clear bellcrank
v D. Idler gear teeth
E. C 1 and C2 can 1 surfaces
* Keep free of any lubricants

Figure 4. Back Of The Printer
IBM #10
1. Index-control lever (old style)
2. Motor bearings
All pivots and bearings in operational unit.
3. Motor pulley and clutch assembly.
1-5

II
12
G F
10
9
;;.....;;.------3
B~~-9
3
6
8
-=-----7
Figure 5. Differential Mechanism
IBM #10
1. Cycle-clutch latch pivot
2. Center bearing
3. Carrier-return pulleys
4. Cycle-clutch checK-latch pivot
5. Check-selector latch pi vot
6. Tab-torgue-bar pivot
7. Feed-roll bearings
8. Escapement-torgue-bar pivot
9. All selector latch and differential mechanism pivots
10. Latch pusher roller and pivot studs
II. Rotate bellcrank
12. Balance arm
IBM #23
A. Cycle-clutch sleeve surface
B. Cycle-clutch restoring cam and roller
C. Negative-five cam surface
D. Selector-cam surface and roller
E. Pusher-bai I cam surface and arm rollers
F. Surface of the escapement rack
G. Torgue bars (light film)
H. Cycle-clutch (inside)
1-6

Figure 6. Improved Lubrication Machines
IBM #JO
IBM #23
A. Cycle clutch (inside) (with grease gun).
1. Latch restore roll er pivot.
B. Cycle clutch sleeve and restoring cam surfaces.
2. Center ~c>aring.
C. Operationa I cam surfaces, roll ers, and drive ratchets.
3. C-5 cam follower roller.
D. R.H. bearing and shift clutch (inside) (with grease gun).
4. Operational cam wicks and pawl pivots.
5. Operational shaft stabilizer (sintered iron).
* Do not lubricate - oil impregnated or self lubricating
1-7

Figure 7. Carrier Mechanism
* Keep cartridge and spindles free of all lubricants
10. Detent-lever bearings
IBM #10
11. Tilt bellcrank pivot
1. Tab-lever pivot
2. Tab-lever latch pivot
3. Rocker pivots
IBM #23
4. Detent pivots
A. Tilt ring and ball joint
5. Ti It-ring pivots B. Ribbon-lift cam surface
6. Lower ball socket
C. Ribbon-feed and detent cam surface
7. Pririt-cam roller bearing
D. Print-cam surface
8. Print-shaft wi pers
E. Ribbon-feed pawl
9. Interposer-lever sl iding surface
F. Ve locity control plate pin
1-8
7
8
6
o
E