Selectric Resources

 

OPERATIONAL SHAFT REMOVAL

 

1. Remove the shift clutch ratchet and clutch spring. Do not maladjust the clutch arbor.

2. Loosen setscrews in torque limiter hub, tab governor hub, tab governor collar, and operational cam ratchet (and RH shaft collar if long carriage).

3. Remove clip from CR pinion spring.

4. Level 1 machines — Push torque limiter hub to the left as far as possible; then, expand the coils on the CR pinion spring and, with the pusher end of a springhook, push the left-hand pinion retainer off the shaft.

5. Move the pinion gear to the left and remove the retainer clip at the right side.

6. The operational shaft may now be pulled out through the shift bearing toward the right. Any part mounted on the shaft or around it may be easily removed or replaced.

 

Inserting the turning wheel in the operational shaft before removal or installation of the shaft will help in handling the shaft.

 

The shift clutch arbor is not loosened from the shaft when the shaft is removed. Therefore, when reinstalling the shaft, push it in until the arbor is against the shift bearing [.002”- .004” (0.05-0.10 mm) end play]. This will place the carrier return pinion gear into the same position as before. Since the shift mechanism was not removed, no shift adjustments are changed.

 

In order to reset the operational cams in their original position, use the push end of a springhook to equally measure distance between cams and check pawls. For ratchets which have only one setscrew, be certain the screw is tightened to the flat side of the operational shaft.

 

Reset the tab governor hub and collar, observing the proper engagement and end play adjustments,

 

After reinstalling the “C” clip retainers on either side of the carrier return pinion gear, move the torque limiter spring hub to the right as far as possible. Then move the torque limiter spring loops and insert a .005” (0.13 mm) feeler gauge blade between the torque limiter hub and the torque limiter arbor. Tighten the torque limiter hub; then remove the gauge.

 

Install the clip which connects the carrier return pinion spring to the torque limiter arbor.