IBM 4247 Maintenance Information page 327

Figure 80. Tractor In Standby Position, Front. Tractor shown installed in front position, with drive gear not engaged
(right end cover removed, for clarity).
Figure 81 on page 328 shows a tractor assembly installed in the rear push or pull position with the gear in the
drive position. The drive gear is driven by the idler gear. The idler gear is driven by a series of gears on the left
side of the printer. The printer gears determine the direction the paper is fed. See Figure 67 on page 313 for rear
pull gear rotation. See Figure 71 on page 317 for rear push gear rotation.
Printer Front
Tractor Drive
Gear
Idler
Gear
Drive Gear
(In Standby
Position
For Front
Installation)
Chapter 5. Removals and Adjustments
327