Keylevers, Letter Cams, Type Bars - IBM C-1 Customer Engineering Reference Manual

REFERENCE MANUAL
MODEl Cl
unit attached to the rear frame. Access is through a
slot low in the rear portion of the bottom case.
CAUTION: Plug must be properly seated, when re-
installing, to prevent possible shock hazard.
MOTOR
1. Remove complete case and cover sections.
2. Remove the belts and the belt tension adjusting-
screw from the left side-frame.
3. Disconnect the tab-lever spring, tab-actuating-
lever spring, and the tab-set and tab-clear links.
4. Remove the six mounting studs that hold the
rear frame to the side frames, and remove the motor
and rear frame.
SWITCH
The switch may be removed from the right side-
frame by removing the rear cover, the switch nut, and
disconnecting the switch wiring.
POWER ROLL
1. Remove complete case and cover sections.
2. Refer to Model BI, Power Roll Removal.
Note: The lower power-roll-bearing-retainer screw is
longer and serves also as a spring anchor for the
ribbon mechanism.
Adjustments
1. SWITCH. Refer to Model BI, Motor and Drive.
Adjustment 1.
2. BEARINGS. Refer to Model BI, Motor and Drive.
Adjustment 2.
3. POWER ROLL END PLAY. Refer to Model BI,
Motor and Drive, Adjustment 3.
4. DRIVEN BELT. Refer to Model BI. Motor and
Drive, Adjustment 4.
5. POWER ROLL SPEED. Refer to Model BI, Mo-
tor and Drive, Adjustment 5.
6. DRIVE BELT. Refer to Model BI. Motor and
Drive, Adjustment 6.
7. MOTOR MOUNTINGS. Belt tension may be ad-
justed without removing the typewriter from the
bottom case-section by loosening the mounting
screws and repositioning the motor.
KEYLEVERS,C~S,TYPEBARS
The keylever, cam. and typebar operation of the
Model C is theoretically the same as on the Model
B. However, the keylevers, cams, and trip levers have,
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