Specifications

6–37
Replacement Procedures and Parts
Tractor Assemblies (Left – 29–30906–01) (Right – 29–30907–01)
1. Unplug the printer power cord from the AC receptacle to insure that
there are no hazardous voltages present while servicing this equipment. It
is also recommended that an anti–static wrist strap (29–26246–01) be
worn, especially while servicing logic components.
2. Remove the paper supply from the print station and tractors.
3. Loosen the 3/32nd set screw in the left bushing (Figure 6–9, page 6–44,
item #19), and remove the bushing from the splined shaft.
4. Loosen the two (2) 5/64th set screws in the adjustment knob (Figure 6–9,
page 6–44, item #17), and remove the knob from the tractor support
shaft.
5. While holding the tractor support shaft from turning, remove the 5/16”
screw from the left end of the shaft.
6. Remove the paper feed belt cover and belt, as described in the paper feed
belt replacement procedure.
7. Slide both the splined shaft and the tractor support shaft to the right, and
remove the paper adjustment bushing and washer (Figure 6–9, page
6–44, items #20 and #21) from the tractor support shaft.
8. Unlock the left tractor lock, and remove the tractor assembly from the
two shafts.
9. To remove the right tractor assembly, first remove the snap ring from the
tractor support shaft. Then with the left tractor lock released, remove the
assembly from the two shafts.
10. Reverse the removal steps to install the new tractor assemblies.
NOTE: Insure that the paper pins on both the right and left tractors are
aligned vertically when installing tractors.