IBM 6400 series Maintenance Manual page 238

14. Pull the right side of the platen toward the front of the printer and move
the platen to the right and out of the left side plate. (Hold the black metal
washer on the left side shaft as you remove the platen. Make sure the
copper wear saddles in the platen seat of the mechanism base stay in
place.)
Installation
The dowel pins protruding from the ends of the platen are the platen
shafts, and are not equal in length. The platen must be installed with
the longer shaft on the right side.
1. Wipe the platen shafts clean of grease and debris.
2. Install two washers on the longer (right) platen shaft. (See Figure 35.)
3. Apply bearing lubricant to both platen shafts.
238
Platen Shaft
(Right Side)
Washer
Figure 35. Installing the Platen Adjust Brackets
IMPORTANT
Ironer Bracket
Washer
Replacement Procedures and Illustrated Parts List
Platen Adjust
Bracket