IBM 6400 series Maintenance Manual page 240

Platen Installation (continued)
9. Slide the right ribbon guide assembly into the side plate and install the
two 7/32 inch screws and washers. (See Figure 50, page 285, item 12,
14, and 15.)
10. Install the forms thickness indicator plate:
a. Slide the indicator plate, with the interlock switch assembly attached,
b. Install the Phillips #1 screw and washer securing the indicator plate.
11. Install the black metal washer onto the left side of the platen shaft. (See
Figure 49, page 283, item 26.)
12. Apply bearing lubricant to the nylon bearings in the two spring links, slide
the spring links onto the two platen shafts, and connect the springs to the
spring hooks in the side plates. (See Figure 49 page 283, items 16, 17,
and 18.)
13. Apply bearing lubricant to the two platen shafts on both sides, between
the ends of the platen and the platen adjustment brackets.
14. Install the paper ironer bracket. (See Figure 35):
a. With the flat part of the bracket facing the front of the printer, place
b. Install and torque three screws to 20
15. Push the platen to the left.
16. Install the forms thickness lever onto the right side platen shaft, pressing
the interlock switch out of the way as the lever slides past it. Tighten the
7/64 inch setscrew. (See Figure 49, page 283.) Open and close the
forms thickness lever to make sure the setscrew does not touch the right
ribbon guide.
240
onto the platen shaft and up against the right side plate.
the two hooks of the upper part of the paper ironer over the platen
shafts.
The left hook of the paper ironer goes between the left platen
adjustment bracket and the platen.
For the right side of the platen, a washer goes on both sides of the
paper ironer hook and the hook goes to the left of the right platen
adjustment bracket. (See Figure 35.)
N m).
Replacement Procedures and Illustrated Parts List
2 inch-pounds (2.26 0.23