IBM 6400 Maintenance Information Manual page 233

Platen
Mechanism
Base Platen
Seat
Figure 37. Positioning the Platen Adjust Brackets
9. Slide the right ribbon guide assembly into the side plate and install the
two 7/32 inch screws and washers. (See Figure 52, page 278, items 11,
13 and 14.)
10. Install the forms thickness indicator plate:
a. Slide the indicator plate, with the interlock switch assembly attached,
onto the platen shaft and up against the right side plate.
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 51, page 276, 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 51, page 276, 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 36, page 232):
a. With the flat part of the bracket facing the front of the printer, place
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.
Washers
Platen Adjust
Bracket
Wear
Saddle
Platen
233