Tally T6215, Maintenance Manual

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T6215 Maintenance Manual
4–30
Procedure 15: Upper Tractor Removal
This is very similar to Procedure 12 on the previous pages.
Step 1. Open the printer cover and remove the paper. Remove the snap rings from
both ends of the square tractor shaft (located inside the frame at each end).
Leave the snap rings loosely on the shaft.
Do not remove the pulley or drive belt. If the pully and/or the drive belt is
removed, you will need to rephase the upper and lower tractor sets (see Pro-
cedure 14).
Step 2. Slide the square shaft a few inches to the right through the upper tractor
pulley. When you replace the shaft and the ground spring, make sure the
shaft touches the spring.
Step 3. Remove the ground spring on the outside right of the square shaft.
Step 4. Loosen the nut on the left side of the round shaft using an adjustable wrench
or pliers. Unscrew the round shaft and slide it to the right a few inches.
Remove the nut from the shaft.
Step 5. You should now have enough space to be able to slide both tractors to the
left and off the shafts. Keep track of the position of the springs and washers
on the support shaft as you remove them.
Each tractor has a raised bump which corresponds to a corner of the square
shaft. Make sure to replace the old or new tractor with the bump correspond-
ing to the same corner.