Specifications

6–8
Replacement Procedures and Parts
Counterweight Assembly (29–30892–01)
1. Unplug the printer power cord from the AC receptacle to insure that
there are no hazardous voltages present while servicing this equipment. It
is also recommended that an anti–static wrist strap(29–26246–01) be
worn, especially while servicing logic components.
2. Remove the cam cover (Figure 6–7, page 6–40, item #4), and the cam
cover plate (item #12), to gain access to the counterweight assembly.
3. Remove the front two (2) allen screws (Figure 6–13, page 6–52, item
#21), from the counterweight base plate, and just ”loosen” the rear screw.
4. Remove one (1) allen screw (Figure 6–13, page 6–52, item #3), from the
counter–weight assembly. (Right side of printer deck)
5. To remove the counterweight, slide the assembly forward, toward the
front of the printer. Exercise care while removing the counterweight
assembly, so as not to lose the counterweight spring guide shims, and
spring seat.
6. To install the new counterweight assembly first remove the rear base
plate allen screw which was loosened during the removal procedure.
Position this screw into the base plate rear slot, and with the allen wrench
inserted into the screw, slide the counter weight assembly into place,
starting the screw into the printer deck threads. Do not tighten this screw
at this time.
7. Next replace the the counterweight allen screw which secures the right
spring seat. (Right side of printer deck) Do not tighten this screw at this
time.
8. To complete the installation, replace the two front base plate allen
screws, and tighten all 4 screws. To insure proper shuttle performance,
this procedure should be followed by the shuttle and and counterweight
preload and spring adjustments found in chapter 5.